vi PREFACE 



urine, &c. Dr. Arthur Keith has contributed an account of his 

 researches into the mechanisms of breathing, and thereby has upheld 

 the importance of anatomy treated as a study of function. Dr. 

 Pembrey has given an account of the subject he knows so well 

 the Physiology of Muscular Work and has incorporated therein the 

 new results which have been obtained, particularly in this country, 

 by the study of marching soldiers. The present views held con- 

 cerning the growth, regeneration, union of nerves, and the nature of 

 the nerve impulse, have been considered by Dr. N. Alcock ; while 

 Dr. J. S. Bolton has contributed an account of the recent researches 

 of himself and others on cortical localisation and the functions of 

 the cerebrum, including the revolutionary views which have been 

 put forward concerning Broca's localisation of Aphasia. Lastly, Mr. 

 Major Greenwood has dealt with two especially interesting subjects 

 of sense physiology Visual Adaptation and Colour Vision. Each 

 writer is responsible for the views he has set forth and the treatment 

 of his subject, and the editor has done no more than select his 

 coadjutors, write his own part, and arrange the book for the press. 

 He hopes it may meet with as cordial a reception as the first 

 volume, serve a useful part, and be perhaps the forerunner of 

 still other volumes, of " more " and " most recent," and even 

 " furthest " Advances in Physiology. 



OSBOKNE HOUSE, LOUGHTON, 

 March 7, 1909. 



