...unlawful for any officer of the United States Government or of the District of Columbia or any such contractor or subcontractor whose duty it shall be to employ, direct, or control services of such laborers or mechanics to require or permit any such laborer or mechanic to work more...

...noted that the Federal statute applies only to the services and employment of laborers and mechanics "upon any of the public works" of the United States or of the District of Columbia, while the provisions of this Massachusetts bill apply to laborer "for or upon...

...unlawful for any officer of the United States Government, or of the District of Columbia, or any such contractor or subcontractor whose duty it shall be to employ, direct, or control the" services of such laborer or mechanic, to work more than eight hours in any calendar day except...

...unlawful for any officer of the United States Government or of the District of Columbia or any such contractor or subcontractor whose duty it shall be to employ, direct, or control the services of such laborers or mechanics to require or permit any such laborer or mechanic to work...

...Government of the United States, by the District of Columbia or by any contractor or sub-contractor, upon any of the public works of the United States or of the District of Columbia, is hereby limited and restricted to eight hours in a calendar day." This Act...

...be noted that the Federal net applies only to the service and employment of laborers and mechanics : upon any "of the public works of the United States or of said District 01 Columbia," while the provisions of this act apply to any laborer employed by any contractor...

...of the United Stated. "Section 2. That any officer or agent of the government of the United States or of the District of Columbia, or any contractor...duty It shall be to employ, direct or control any lahorer or mechanic employed upon a public work of the United Stolen or of the District of Columbia,...

...the navigable rivers of the United States. " VIOLATION OF ACT BY OFFICER OR CONTRACTOR PUNISHABLE. any contractor or subcontractor whose duty it shall...direct, or control any laborer or mechanic employed upon a public work of the United States or of the District of Columbia, or any person employed to perform...

...laborers and mechanics in connection with dredging or rock excavation in any river or harbor of the United States or of the District of Columbia, who shall intentionally violate any provision of this act, shall be deemed guilty of a misdemeanor, and for each and every such offense shall, upon conviction, be punished...

...unlawful for any officer of the United States Government or of the District of Columbia, or any such contractor or subcontractor whose duty it shall be to employ, direct, or control the services of such laborers or mechanics, or of such persons employed to perform services similar...