176 REPORTS ON THE STATE OF SCIENCE.—1914. 
ascertain the effect on physique, accident occurrence, production and 
general social well-being of present conditions relating to fatigue 
occurrence in industrial work, and to discuss possible improvements 
therein, and the best methods of obtaining them.’ We concur with 
this definition. 
We hope that Dr. Maitland, being a member of our Committee, 
will prepare a short résumé of existing knowledge on the effects of 
muscular and mental fatigue respectively. We shall also endeavour 
to ascertain what are the main subjective and objective determinants 
of fatigue; e.g., what is the relative importance of muscular work, 
mental strain, monotony, atmospheric wet-bulb temperature (kata- 
thermometric condition), noise, light, etc.; and to discover some 
reliable physiological quantitative index of fatigue, and the chief 
physiological effects of over-fatigue. 
We shall consider the questions what increase, if any, has occurred 
in general morbidity in recent years, and to what extent this can be 
ascribed to industrial fatigue ; and what difference can be traced between 
the morbidity cases of workers in various age groups from fifteen 
upwards engaged in occupations involving long hours of work or 
specially fatiguing conditions, and those for all workers or workers in 
fairly easy occupations. 
We shall also consider the incidence of industrial accidents in 
relation to hours of work; and the variation in the output of work 
per hour during the day, and the output per day with various lengths 
of working-day. 
We propose to give special attention to the speeding-up of 
machinery, and to inquire how far this has been accompanied by a 
reduction of hours. 
We shall also consider the probable social reactions of over- 
fatigue, and what general remedies, if any, may seem most promising 
and hopeful. 
The Committee has made a preliminary division of the work, as 
so sketched, among the following sub-committees :— 
Physiological and Psychological. Industrial. Statistical. 
Dr. Maitland (Convener). Miss Anderson. Mr. Layton (Convener). 
Prof. Muirhead. Mr. Cadbury. Miss Hutchins. 
Dr. Myers. Mr. Florence (Convener). Mr. Ramsbottom. 
Dr. Bainbridge. Miss Hutchins. Dr. Yule. 
Dr. Legge. Miss Matheson. 
Mr. Ramsbottom. 
And we have appointed Mr. Ramsbottom as hon. organising secretary. 
For purposes of the foregoing inquiries we think it will be essential 
to obtain the services of expert and paid assistants. 
The Committee ask to be reappointed, with the addition of the 
words ‘ social and ’ before ‘ economic,’ in their terms of reference, and 
to be allotted a grant. 
