men, and three girls in a cot in the same room. Labor unrest was met at
first by the Munitions War Act prohibiting strikes and lockouts,
establishing compulsory arbitration and suspending all trade-union rules
which might "hamper production." Under the law a "voluntary army of
workers" signed up as ready to go anywhere their labor was needed, and
local munition committees became labor courts endowed with power to
change wage rates, to inflict fines on slackers, and on those who broke
the agreements of the "voluntary army."

To meet the threatening rebellion, a Health of Munition Workers
Committee under the Ministry of Munitions was appointed to "consider and
advise on questions of industrial fatigue, hours of labor and other
matters affecting the physical health and physical efficiency of workers
in munition factories and workshops." On this committee there were
distinguished medical men, labor experts, members of parliament and two
women, Miss R.E. Squire of the Factory Department and Mrs. H.J. Tennant.

The committee was guided by a desire to have immense quantities of
munitions turned out, and faced squarely the probability that the war
would be of long duration. Its findings, embodied in a series of
memoranda, have lessons for us, not only for war times, but for peace
times, for all time.

On a seven day week the verdict was that "if the maximum output is to be
secured and maintained for any length of time, a weekly period of rest
must be allowed." Overtime was advised against, a double or triple shift
being recommended.

In July, 1916, the committee published a most interesting memorandum on
experiments in the relation of output to hours. In one case the output