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Operators and station agents and assistants
(steam railroad),

Operators and ticket agents and assistants
(steam railroad),

Operators and ticket clerks (steam railroad),

Operators and towermen (steam railroad),

Matchers (carpenters),

Matrons (steam railroad),

Mattress makers,

Meat cooks,

Meat cutters and butcher workmen,

Mechanics, carpet, .

Mechanics (elevator constructors),

Operators, machine. (See Machine operators.)

Mechanics (municipal),

. 119

Mechanics (steam railroad),

. 131

Melters (federal),

113

Messenger boys (federal),

Messmen and mess boys (marine),

Metal lathers (building),

Metal polishers, buffers, and platers,

Metal workers and helpers, sheet,

Metal workers, sheet (federal),

Meter workers,

112, 113, 116
77

Metropolitan water and sewerage employees

(laborers), .

Milk wagon drivers and helpers,

Mill hands or millwrights and helpers, general

(carpenters),

Millers (federal),

Millingmen (machinists),

Molders and helpers,

Millmen or millwrights (federal),

Molders and helpers (federal),.

Pantrymen and assistants (marine cooks),

tors.)

Molding machine operators,

Monotype machine operators. (See Composi-

Pastry cooks,

way),

Motormen and conductors, surface (street rail-

Motormen, rapid transit (street railway),

Pattern makers (wood),