055 NLRB 380
Basic Magnesium, Inc.
In the Matter of BASIC MAGNESIUM , INCORPORATED and INTERNATIONAL
UNION OF MINE, MILL & SMELTER WORKERS , FOR ITSELF AND ON IIE-
HALF OF ITS LOCAL UNION No. 641, C. I. O.
Case No. 20-R-8814-Decided March 10,1944
Thatcher c6 Woodburn, by Mr. William J. Forman, of Reno, Nev.,
and Mr. C. J. Parkinson, of has Vegas, Nev., for the Company.
Mr. Willard Y. Morris, of Denver, Colo., and Messrs. C. L. Pegues
and A. E. Anz of Gabbs, Nev., for the Smelter Workers.
7!1r. Morley Griswold, of Reno, Nev., for all AFL unions except the
Machinists.
Mr. E. R. White, of San Bernardino, Calif., for the Machinists.
Mr. Wallace E. Royster, of counsel to the Board.
DECISION
AND
DIRECTION OF ELECTIONS
STATEMENT OF THE CASE
Upon a joint petition duly filed by International Union of Mine, Mill
& Smelter Workers, for itself and on behalf of its Local Union No. 611,
C. I. 0., herein called, collectively, the Smelter Workers, alleging that
a question affecting commerce had arisen concerning the representa-
tion of employees of Basic Magnesium, Incorporated, Gabbs and Lur-
ing, Nevada, herein called the Company, the National Labor Rela-
tions Board provided for an appropriate hearing upon clue notice be-
fore Earl S. Bellman, Trial Examiner. Said hearing was held at
Reno, Nevada, on September 29, 30, and October 1, 1943.
During the
hearing, the Trial Examiner permitted to intervene American Feder-
ation of Labor, International Union of Hodcarriers, Building and
Common Laborers Union, herein called the Laborers, Int(Vnational
Union of Operating Engineers, herein called the Engineers, Interna-
tional Brotherhood of Teamsters, Chauffeurs, Warehousemen and
Helpers, herein called the Teamsters, United Brotherhood of Car-
penters and Joiners of America, Local 632, herein called the Carpen-
ters, International Brotherhood of Electrical Workers, Local 401,
herein called the I. B. E. W., International Brotherhood of Painters,
55 N. L. R. B., No. 71.
380
BASIC MAGNESIUM, INCORPORATED
381
Decorators, and Paperhangers, Local 5,67, herein called the Painters,
and United Association of Journeymen Plumbers and Steamfitters,
Local 350, herein called the Plumbers.
The above-listed intervenors
were represented at the hearing by the same counsel and will be herein
called collectively the A. F. of L. unions.
The Trial Examiner also
permitted the intervention of International Association of Machin-
ists, herein called the Machinists
All parties appeared, participated,
and were afforded full opportunity to be heard, to examine and cross-
examine witnesses, and to introduce evidence bearing on the issues.
The A. F. of L. unions moved to dismiss the petition on the grounds
that it is insufficient on its face to confer jurisdiction on the Board
and that an amendment to the current Appropriation Act precludes
the Board from holding hearings or making findings of fact in this
proceeding.
For reasons appearing in Section III, infra, the motion
is denied.
The Trial Examiner's rulings made at the hearing are free
from prejudicial error and are hereby affirmed.
All parties were
afforded an opportunity to file briefs with the Board.
Upon the entire record in the case, the Board makes the following :
FINDINGS OF FACT
1. THE BUSINESS OF TIDE COMPANY
Basic Magnesium, Incorporated, is a Nevada corporation with its
principal place of business at Las Vegas, Nevada.
We are here con-
cerned with the employees working in the operations at Gabbs, Nevada,
where the Company is engaged in mining and reducing magnesite ore
and at Luning, Nevada, where it operates loading docks.
The prop-
erties at both locations are owned by Defense Plant Corporation, an
instrumentality of the United States Government.
The magnesite
concentrates produced at Gabbs are shipped from Luning through
Nevada and Utah to Las Vegas, Nevada, for further processing.
The
Company concedes, and we find, that its operations affect commerce
within the meaning of the National Labor Relations Act.
II.
TIIE ORGANIZATIONS INVOLVED
International Union of Mine, Mill & Smelter Workers and its Local
Union No. 641, are labor organizations affiliated with the Congress
of Industrial Organizations, admitting to membership employees of
the Company.
American Federation of Labor is a federation of labor organiza-
tions and, through its affiliates, admits to membership employees of
the Company.
3 At the time of the hearing, the Machinists were in the process of disaffiliation from
the A. F. of L. and its interests were represented separately.
382
DECISIONS
OF NATIONAL LABOR RELATIONS BOARD
International Association of Machinists,' International Union of
IIodcarriers, Building and Common Laborers Union, International
Union of Operating Engineers, International Brotherhood of Team-
sters, Chauffeurs, Warehousemen and Helpers, United Brotherhood
of Carpenters and Joiners of America, Local 632, International
Brotherhood of Electrical Workers, Local 401, International Brother-
hood of Painters, Decorators and Paperhangers, Local 567, and United
Association of Journeymen Plumbers and Steamfitters, Local 350, are
labor organizations affiliated with the American Federation of Labor,
admitting to membership employees of the Company.
III. THE QUESTION CONCERNING REPRESENTATION
As of January 15, 1942, the Company entered into a collective bar-
gaining contract with the Laborers, the Engineers, and the Teamsters,
covering all production and maintenance employees then employed
at the Gabbs and Luning locations and providing for future recogni-
tion of all A. F. of L. unions whose members might be employed by
the Company.
By its terms the contract is to remain in effect for
the duration of the war, or for 2 years, whichever is the longer period.
The Company and the A. F. of L. unions assert that the contract con-
stitutes a bar to this proceeding inasmuch as the longer alternative
term has not expired. It is the settled policy of the Board not to give
effect to a collective bargaining contract for longer than a reasonable
period where it may serve to frustrate the right of employees to choose
representatives under the Act.'
We find that the contract has been
in effect for a reasonable period and that it does not constitute a bar
to a present investigation of representatives.
The A. F. of L. unions
also assert that under the Amendment to the current Appropriation
Act 4 the Board is without jurisdiction in this proceeding inasmuch
as the contract above referred to is a contract between management
and labor in existence for more than 3 months. Since the limitation
referred to has no application to representation cases, but expressly
refers to "complaint" cases the contention is without merit.'
By letter dated May 17, 1943, the Smelter Workers advised the Com-
pany that it represented a majority of the Company's production and
maintenance employees and requested recognition as exclusive bar-
gaining representative.
On May 24, 1943, the Company replied that
the request would be referred to the General Manager at Las Vegas.
Since the hearing, the Machinists bias reaffiblated with the American Federation of
Labor
See Matter of The T2ailer Company of America, 51 N L R B 1106.
a Labor-Feder.il Security Appropriation Act, 1944, 57 Stat 494
6 The fin Cher objection of the A. F of L unions to the alleged insufficiency of the peti-
tion herein is without merit
The petition is of concern only to the Board and is sufficient
if, as here, it informs with substantial accuracy of the existence of a question conceining
representation.
BASIC MAGNESIUM, INCORPORATED
383
No further communication was received from the Company but at the
hearing it refused to extend such recognition to the Smelter Workers.
A statement of the Field Examiner introduced into evidence at the
hearing and other evidence in the record indicates that the Smelter
Workers and the A. F. of L. unions represent a substantial number
of employees in the unit each claims to be appropriate .6
We find that a question affecting commerce has arisen concerning the
representation of employees of the Company within the meaning of
Section 9 (c) and Section 2 (6) and (7) of the Act.
IV. THE APPROPRIATE UNITS; THE DETERMINATION OF REPRESENTATIVES
The Smelter Workers seeks a bargaining unit which may be de-
scribed briefly as including all production and maintenance employees
at the Gabbs and Luning locations but excluding office and clerical
employees, professional employees, technical employees, janitors,
storekeepers, timekeepers, firemen, guards, and supervisory employees.
All parties agree to the exclusion of the employee categories listed
above.
The Company, while alleging that it has dealt separately with
the intervening A. F. of L. unions in matters concerning the groups
they claim to represent, has adopted a neutral position concerning the
propriety of an industrial unit as opposed to craft units.
Each of the
A. F. of L. unions seeks a separate bargaining unit for the employees
within its jurisdiction.
The operations of the Company are closely integrated, from re-
moval of magliesite ore from the ore beds, through reduction and
flotation processes at the Inill, to shipment of the resulting concentrates
from the loading dock at Luning. This integration lends weight to
the contention of the Smelter Workers for an industrial unit. Indus-
trial units are not unique in the mining industry and the employees
in the Company's smelter at Las Vegas, Nevada, are now represented
The Field Examiner stated that he had examined evidence of membership among the Company's
employees submitted by the Smelter Workers, the Machinists, the Carpenters, the I B E W , the
Plumbers, and the Painters
He found the indicated membership of these unions to be as shown on the
chart following
Labor organization
Smelter Workers ---------------------------------
Machinists---------------------------------------
Carpenters ---------------------------------------
I
B E W---------- ------------- --- ---------- ----
Plumbers -------------------------
-___
--_-__-__
--
Painters ----- --------- --------- ----------------- --
Number for
Number
whom evi-
dence was
submitted
212
36
25
19
9
2
Number on
Company's
pay roll of
August 1, 1943
133
26
25
18
8
2
Total number
of employees
in units sought
395
32
26
18
17
2
The Laborers, Teamsters, and Engineers submitted no evidence of membership but rely upob the
contract to establish their interest
384
DECISIONS OF NATIONAL LABOR RELATIONS BOARD
in such a unit.'
However, the A. F. of L. unions have long represented
and bargained for such employee categories as they would have consti-
tute separate craft units and they may, too, point to other operations
in the mining industry where employees are represented in craft units.,,
The Smelter Workers allege that the contract presently in force
between the Company and the A. F. of L. unions contemplates bargain-
ing on an industrial basis.
Bargaining with the Company was initi-
ated by the Laborers, Teamsters, and Engineers and resulted in the
negotiation of the contract here involved, The contract recognizes
The Local and International Unions, Federations thereof, and
Building and Construction Trades Council signatory hereto, and
the Local Unions affiliated with the American Federation of
Labor not signatory hereto but the members of which may from
time to time be called upon to render services to the Company, as
the sole and exclusive collective bargaining representatives of all
persons rendering service to the Company under the terms of this
Agreement .. .
and further provides that when employee classifications other than
those within the craft jurisdiction of the Laborers, Teamsters, and
Engineers are established, wage scales and working conditions for such
classifications shall be negotiated with the craft unions involved.
Pro-
vision is made for the handling of grievances by the "Union represent-
ative" of the employee concerned.
The contract is signed by officials
identified as representatives of the Laborers, Teamsters, and Engineers.
It contains no other provisions or recitals which indicate whether the
parties intended, on the one hand, to set up a single industrial unit of
the Company's production and maintenance employees, to be repre-
sented by a group of A. F. of L. unions acting jointly, or, on the other
hand, several craft units to be represented severally by the participat-
ing unions.
The contract and grievance procedure above described may not be
inconsistent with industrial bargaining but again, it does not negate
the unit contentions of the A. F. of L. unions.
We are of the opinion
that the history of bargaining presents an unclear picture in respect
to the question of the appropriate unit. In this situation, with regard
to the conflicting contentions of the parties and the inconclusive bar-
gaining history, we shall permit the scope of the bargaining unit or
units to be determined in part by the desires of the employees them-
selves to be ascertained by means of separate elections.
As indicated in Section III, supra, each of the A. F. of L. unions,
excepting the Laborers, Teamsters, and Engineers who rely upon the
Matter of Basic Magnesuina, Incorporated, 48 N. L. R. B. 1310.
s See Matter of Kennecott Copper Corporation, Nevada Manes Division, 51 N. L. R. B.
1140
BASIC MAGNESIUM, INCORPORATED
385
contract, produced evidence indicating that it has organized a sub-
stantial number of employees in its proposed bargaining unit.
The
Smelter Workers apparently represents a sufficient number of em-
ployees to entitle it to a place on the ballots in the elections which we
shall direct.
We believe that the employees in the units proposed by
the A. F. of L. unions may appropriately constitute separate bargaining
units, or be merged in the industrial unit requested by the Smelter
Workers.
We shall consider, then, the composition of the voting
groups.
The Machinists would include in a separate unit all machinists,
heavy duty mechanics, maintenance repairmen, maintenance repairman
helpers, blackmiths, blacksmith helpers,9 and welders.
Although the
Engineers claim jurisdiction over heavy duty mechanics and welders
who work on equipment used by the Engineers, it appears that the
employees in these disputed categories are not assigned exclusively to
work on such equipment. Since their skills are similar to those em-
ployees whom the Machinists would include, we shall include all heavy
duty mechanics and welders in a voting group of machinists.
The Painters would include in a separate unit only those employees
working as painters.
The Carpenters would include in a separate unit all carpenters and
bulkhead men.
The latter build bulkheads in freight cars before the
concentrate is loaded for shipment.
Since bulkhead men use carpen-
ters' tools in their work, we shall include them in the carpenters' voting
group.
The I. B. E. W. would include communications equipment operators
(telephone switchboard operators) along with skilled electricians in
the unit it seeks.
The communications equipment operators are not
skilled in the electrical craft and also are engaged part time in clerical
work.
We shall exclude them from the electricians' voting group.
The Plumbers seeks a unit of plumbers, steam fitters, pipe fitters,
and pipe fitter helpers.
This is a traditional craft grouping and we
shall include the named categories of employees in the plumbers' voting
group.
The Teamsters seeks a unit of truck drivers, warehousemen, and
service station attendants, excluding truck drivers engaged in the
transport of concentrates from the mill to the loading clock.
The
categories included constitute a functional group with complementary
skills and are concededly within the jurisdiction of the Teamsters.
We shall include them in the teamsters' voting group.
The truck
drivers transporting concentrates from the mill to the loading dock
The Machinists has represented blacksmiths and helpers for several years locally by
agreement with International Brotherhood of Blacksmiths, Drop Forgers, and helpers.
578129-44-vol. 55-26
386
DECISIONS OF NATIONAL LABOR RELATIONS BOARD
are employees of an independent contractor and we shall, therefore,
exclude them from the teamsters' voting group.
The Operating Engineers would include in the unit it seeks all
employees who operate power driven machinery, specifically ball mill
operators, burnermen, furnacemen, churn drill operators, compressor
operators, core drill operators, core drill operator helpers, crusher oper-
ators, crusher apprentices, diamond drill operators, diamond and churn
drill apprentices, drier operators, filter operators, flotation operators,
flotation helpers, loading dock operators, mill apprentices, oilers, pump
operators, roaster operators, screen operators, shovel operators, shovel
apprentices, stacker operators, tractor operators, and welders and
heavy duty mechanics who work on equipment used by the engineers.
Many of the employees sought here' to be included are production
employees of varying grades of skill.
With the exception perhaps
of the oiler, whose inclusion is not contested, and the welders and heavy
duty mechanics claimed by the Machinists, all the employees here in
question operate power driven machinery, and may appropriately con-
stitute a bargaining unit.
As we have indicated, the welders and
heavy duty mechanics are more appropriately included in the machin-
ists' unit.
Certainly they lack the characteristic of operating power
driven machinery.
We shall exclude the welders and heavy duty
mechanics from the engineers' voting group.
The unit sought by the Laborers would include chuck tenders, pump
men, general laborers (production), high scalers, jack hammer men,
timber men, leyner operators, loading clock operator helpers, mill
laborers, mine laborers, quarrymen, nippers, samplers, pitmen, powder-
men, powderman helpers, tailing pond operators, wagon drillers,
wagon driller helpers, hodcarriers and maintenance laborers.
Al-
though none of the A. F. of L. unions has claimed jurisdiction over
weighmasters, who weigh concentrates in the mill, they perform
work closely connected with the production process, are under the
supervision of the production foremen, and receive wages comparable
to those of other production employees.
We shall, therefore, include
weighmasters in the laborers' voting group.
As the parties agree, we shall exclude office and clerical employees,
professional employees, technical employees, janitors, storekeepers,
timekeepers, firemen, and guards from the voting groups described
below.
The A. F. of L. unions would include in the units they seek
all foremen who do not have final authority to hire and discharge and
who work with the tools of their trade. It appears, however, that all
foremen possess authority effectively to recommend changes in the
status of employees and we shall, therefore, exclude foremen from the
voting groups together with all other supervisory employees with
authority to hare, promote, discharge, discipline, or otherwise effect
BASIC MAGNESIUM, INCORPORATED
387
Changes in the status of employees or effectively recommend such
action.
Upon the basis of the entire record and in conformance to the fore-
going conclusions, we shall order the conduct of elections among the
employees of the Company at its Gabbs and Leming operations within
each of the groups listed below, excluding from each group, office and
clerical employees, professional employees, technical employees, jan-
itors, storekeepers, timekeepers, firemen, guards, and supervisory em-
ployees with authority to hire, promote, discharge, discipline, or other-
wise effect changes in the status of employees or effectively recommend
such action :
Group (1) All employees performing the work of machinists, heavy
duty mechanics, maintenance repairmen, maintenance repairman help-
ers, blacksmiths, blacksmith helpers, and welders, excluding all fore-
men, to determine whether they desire to be represented by the Smelter
Workers or by the Machinists for the purposes of collective bargain-
ing, or by neither;
Group (2) All employees performing the work of painters, exclud-
ing foremen, to determine whether they desire to be represented by the
Smelter Workers or by the Painters for the purposes of collective bar-
gaining, or by neither;
Group (3) All employees performing the work of carpenters and
bulkhead men, excluding foremen, to determine whether they desire
to be represented by the'Smelter Workers or by the Carpenters for the
purposes of collective bargaining, or by neither;
Group (4) All employees performing the work of electricians, elec-
trician helpers, and panel operators, excluding foremen and communi-
cations equipment operators, to determine whether they desire to be
represented by the Smelter Workers or by the I. B. E. W. for the
purposes of collective bargaining, or by neither;
Group (5) All employees performing the work of plumbers, steam
fitters, pipe fitters, and pipe fitter helpers to determine whether they
desire to be represented by the Smelter Workers or by the Plumbers
for the purposes of collective bargaining, or by neither;
Group (6) All employees performing the work of flat rack truck
drivers, heavy duty truck drivers, pick-up truck drivers, water wagon
drivers, warehousemen, and service station attendants, excluding truck
drivers engaged in the transport of concentrates from the mill to the
loading dock who are employees of an independent contractor, to de-
termine whether they desire to be represented by the Smelter Workers
or by the Teamsters for the purposes of collective bargaining, or by
neither;
Group (7) All employees who operate power driven machinery,
specifically ball mill operators, burnermen, furnacemen, churn drill
388
DECISIONS OF NATIONAL LABOR RELATIONS BOARD
operators, compressor operators, core drill operators, core drill opera-
tor helpers, crusher operators, crusher apprentices, diamond drill
operators, diamond and churn drill apprentices, drier operators, filter
operators, flotation operators, flotation helpers, loading dock oper-
ators, mill apprentices, oilers, pump operators, roaster operators,
screen operators, shovel operators, shovel apprentices, stacker opera-
tors, and tractor operators, to determine whether they desire to be
represented by the Smelter Workers or by the Engineers for the pur-
poses of collective bargaining, or by neither;
Group (8) All employees performing the work of chuck tenders,
pump men, general laborers (production), high scalers, jack hammer
men, timber men, leyner operators, loading dock operator helpers,
mill laborers, mine laborers, quarrymnen, nippers, samplers, pitmen,
powdermen, powderman helpers, tailing pond operators, wagon drill-
ers, wagon driller helpers, hodcarriers, weighmasters, and manlte-
nance laborers, to determine whether they desire to be represented by
the Smelter Workers or by the Laborers for the purposes of collective
bargaining, or by neither.
We will make no final determination of the appropriate unit or units
pending the results of the elections.
Those eligible to vote in the elections which we shall direct shall be
the employees of the Company described in the voting groups above
who were employed during the pay-roll period immediately preceding
the date of the Direction of elections herein, subject to the limitations
and additions set forth therein.10
DIRECTION OF ELECTIONS
By virtue of and pursuant to the power vested in the National Labor
Relations Board by Section 9 (c) of the National Labor Relations Act,
and pursuant to Article III, Section 9, of National Labor Relations
Board Rules and Regulations, Series 00, it is'hereby
DIRECTED that, as part of the investigation to ascertain representa-
tives for the purposes of collective bargaining with Basic Magnesium,
Incorporated, Gabbs and Luning, Nevada; elections by secret ballot
shall be conducted as early as possible, but not later than thirty (30)
days from the date of this Direction, under the direction and super-
vision of the Regional Director for the Twentieth Region, acting in
this matter as agent for the National Labor Relations Board, and sub-
ject to Article III, Sections 10 and 11, of said Rules and Regulations,
among the employees in the voting groups below who were employed
during the pay-roll period immediately preceding the date of this
10 The American Federation of Labor does not desire to participate in elections in the
above groups and consequently will not appeal on the ballots.
The several unions have
requested that they appear on the ballots as in the Direction.
BASIC MIAGNESIUII, INCORPORATED
389
Direction, including employees who did not work during said pay-
roll period because they were ill or on vacation or temporarily laid
off, and including employees in the armed forces of the United States
who present themselves in person at the polls, but excluding any who
have since quit or been discharged for cause and have not been rehired
or reinstated prior to the date of the election, and excluding further
office and clerical employees, professional employees, technical em-
ployees, janitors, storekeepers, timekeepers, firemen, and guards, as
well as all supervisory employees with authority to hire, promote, dis-
charge, discipline, or otherwise effect changes in the status of em-
ployees or effectively reconunend such action :
Group (1) All employees performing the work of machinists, heavy
duty
mechanics, maintenance repairmen,
maintenance repairman
helpers, blacksmiths, blacksmith helpers, and welders, but excluding
all foremen, to determine whether they desire to be represented by
International Union of Mine, Mill & Smelter Workers, C. I. 0., or by
International Association of Machinists, for the purposes of collective
bargaining, or by neither;
Group (2) All employees performing the work of painters, exclud-
ing foremen, to determine whether they desire to be represented by
International Union of Mine, Mill & Smelter Workers, C. I. 0., or
by International Brotherhood of Painters, Decorators and Paper-
hangers, Local 567, A. F. of L., for the purposes of collective bargain-
ing, or by neither;
Group (3) All employees performing the work of carpenters and
bulkhead Inen, excluding foremen, to determine whether they desire
to be represented by International Union of Mine, Mill & Smelter
Workers, C. 1. 0., or by United Brotherhood of Carpenters and Joiners
of America, Local 632, A. F. of L., for the purposes of collective bar-
gaining, or by neither;
Group (4) All employees performing the work of electricians, elec-
trician helpers, and panel operators, excluding foremen and communi-
cations equipment operators, to determine whether they desire to be
represented by International Union of Mine, Mill & Smelter Workers,
C. I. 0., or by International Brotherhood of Electrical Workers, Local
401. A. F. of L., for the purposes of collective bargaining, or by
neither ;
Group (5) All employees performing the work of plumbers, steam
fitters, pipe fitters, and pipe fitter helpers, excluding foremen, to
determine whether they desire to be represented by International
Union of Mine, Mill & Smelter Workers, C. I. 0, or by United Asso-
ciation of Journeymen Plumbers and Steamfitters, Local 350, A. F.
of L., for the purposes of collective bargainning, or by neither;
390
DECISIONS OF NATIONAL LABOR RELATIONS BOARD
Group (6) All employees performing the work of flat rack truck
drivers, heavy duty truck drivers, pick-up truck drivers, water wagon
drivers, warehouseinen, and service station attendants, excluding truck
drivers engaged in the transportation of concentrates from the mill to
the loading clock who are employees of an independent contractor, to
determine whether they desire to be represented by International
Union of Mine, Mill & Smelter Workers, C. I. 0., or by International
Brotherhood of Teamsters, Chauffeurs, Warehousemen, and Helpers,
Local 533, A. F. of L., for the purposes of collective bargaining, or by
neither ;
Group (7) All employees who operate power driven machinery,
specifically ball mill operators, burnermen, furnacemen, churn drill
operators, compressor operators, core drill operators, core drill opera-
tor helpers, crusher operators, crusher apprentices, diamond drill
operators, diamond and churn drill apprentices, drier operators, filter
operators, flotation operators, flotation helpers, loading dock opera-
tors, mill apprentices, oilers, pump operators, roaster operators, screen
operators, shovel operators, shovel apprentices, stacker operators and
tractor operators, excluding welders and heavy duty mechanics, to
determine whether they desire to be represented by International
Union of Mine, Mill & Smelter Workers, C. I. 0., or by International
Union of Operating Engineers; A. F. of L., for the purposes of col-
lective bargaining, or by neither;
Group (8) All employees performing the work of chuck tenders,
pump men, general laborers (production), high scalers, jack hammer
men, timber men, leyner operators, loading dock operator helpers,
mill laborers, mine laborers, quarrymen, nippers, samplers, pitmen,
powdermen, powderman helpers, tailing pond operators, wagon
drillers, wagon driller helpers, hodcarriers, weighmasters, and main-
tenance laborers, to determine whether they desire to be represented
by International Union of Mine, Mill & Smelter Workers, C. I. 0.,
or by Construction, General Open Pit Quarry and Mill Workers, Local
Union 313, A. F. of L., for the purposes of collective bargaining, or
by neither.