EXPERIMENTS IN INHERITANCE. 175 
CastLE . .. 1906 . ‘Science,’ N.S., vol. xxiv. 
. 1910 . ‘Science,’ N.S., vol. xxx. 
CufnoT . . . ‘Arch. Zool. Exp. Gen.,’ vols. 1., ., II., VI. 
DaRBISHIRE . 1903 . ‘ Biometrika,’ vol. 1. 
DurHAM . 1908 . ‘Rept. IV. Evolution Com., Royal Society.’ 
—_—_—_ . 1911 : ‘Jour. Genetics,’ vol. I. 
Haqgepoorn . 1909 (1) . ‘Arch. Entwickelungsmechanik,’ vol. xxvii. 
——— . 1909 (2) . ‘Univ. California Pub. Physiol.,’ vol. m1. 
LAURIE . 1909 . ‘Rept. Com. Brit. Ass.’ in ‘ Rept. Brit, Ass.,’ Dublin 
1908. 
— - 1912 . ‘Rept. Com. Brit. Ass.’ in ‘ Rept. Brit. Ass.,’ Plymouth 
1911. 
Morcan . 1905 . ‘Science,’ N.S., vol, xxm. 
Witson . 1906 . ‘Science,’ N.S., vol. xxmr. 
The Question of Fatigue from the Economic Standpoint.— 
Interim Report of the Committee, consisting of Professor 
J. H. Muirgeap (Chairman), Miss B. L. Hurcuins (Secre- 
tary), Miss A. M. ANpbgERSON, Professor BAINBRIDGE, 
Mr. EK. Capsury, Mr. P. SARGANT FLORENCE, Professor 
STANLEY Kent, Mr. W. T. Layton, Dr. T. G. Marrnanp, 
Miss M. C. Marueson, Dr. C. §. Myers, Mr. J. W. Rams- 
BOTTOM, and Dr, J. JENKINS Ross. In addition, help has 
been kindly afforded by the following: Miss MABEL ATKIN- 
son, Dr. Wm. Brown, Mr. ARTHUR GREENWOOD, and Dr. 
Upney YULE. 
Tue Committee has met four times, and has made a preliminary 
survey of the subject of investigation, and has discussed the matter 
at some length. 
An extensive Bibliography of Fatigue has been prepared for the 
use of the Committee by Miss B. L. Hutchins. 
A short report has been drawn up on industrial experiments in 
shortening hours, also by Miss Hutchins. 
Some notes have been kindly contributed by Dr. William Brown 
on the existing state of psychological knowledge in regard to fatigue. 
A Memorandum on the provisional aims and methods of the inquiry 
has been drawn up by Mr. Ramsbottom, and adopted by the Com- 
mittee as a basis of its future work. 
As a result of our preliminary survey, we have become aware that 
a considerable amount of work on the subject has been done in America 
and on the Continent of Europe, and, so far, comparatively little in 
this country. 
We consider, however, that but little definite information exists, 
and detailed scientific investigation is badly needed, especially in 
view of the rapid development of the factory industry and the pro- 
gressive urbanisation of the working class in this country. 
_ We propose, if reappointed, to adopt the following method of 
investigation :— 
Mr. Ramsbottom has defined the object of inquiry as being ‘ to 
