PREFACE 



The following contribution to the study of the sense of touch 

 in Mammals and Birds is based upon certain papers and exhibi- 

 tions of specimens communicated to the Zoological Society of 

 London, the Anatomical Society of Great Britain and Ireland, 

 and the Journal of Anatomy and Physiology. The chief of 

 these was read before the Zoological Society, but was not 

 pubhshed in the Transactions. Two very extensive and 

 important papers, one by Miss Inez L. Whipple, and another 

 by Prof. 0. Schlaginhaufen, had been pubhshed a very short 

 time before my paper was read, and as these covered much 

 the same ground, and as, not knowing of their existence, I had 

 not discussed them, its pubhcation became impossible without 

 very great alterations and additions. It seemed better, there- 

 fore, to incorporate it with certain other microscopical studies 

 of the skin-structures of the hand and foot in mammals, and 

 make it a small introduction or anatomical basis for the 

 consideration of the sense of touch. 



I have to thank the Editors of the Journal of Anatomy and 

 Physiohgy for permission to reproduce certain illustrations, 

 and the Prosector of the Zoological Society's Gardens for a 

 large series of hands and feet of Mammals and feet of Birds, 

 which were placed at my disposal for study. I also wish to 

 thank Mr. R. I. Pocock for assistance he has given me, and 

 for some valuable impressions taken from dead specimens of 

 Anthropoid Apes, without which my series of impressions would 

 have been incomplete. 



