THE SENSE OF TOUCH IN MAMMALS 

 AND BIKDS 



WITH SPECIAL KEFEKENCE TO THE PAPILLARY RIDGES 



BY WALTER KIDD, M.D., F.Z.S., 



Author of ' Use Inheritance,' 'Direction of Hair in Animals and Mau,' etc. 



Demy 8vo, Cloth, containing 174 Illustrations. Price 5s. net. 

 (Post free, price 5s. 4d.) 



" This is, for the purposes of exact science, undoubtedly a valuable book. ... As regards the 

 highest mammal, man, it is well pointed out that the sense of touch has been from the very first of 

 extreme importance, and that ' such use of this sense in man must have contributed greatly to 

 his better equipment for the struggle of his life, and thus in a broad way have been governed by 

 a slow, remorseless process of selection.' The book is eminently one for specialists, but the 

 excellence of the numerous illustrations makes it also interesting to the general reader." London 

 Quarterly Review. 



"Dr. Kidd's book is the most important contribution to the matter since 3tiss Whipple's paper 

 was published." The Spectator. 



BY THE SAME AUTHOR 



USE-INHEBITANCE 



ILLUSTRATED BY THE DIRECTION OF HAIR OX 

 THE BODIES OF ANIMALS 



Demy 8vo, Paper Covers. Price 2s. 6d. net. 



(Post free, price 2s. 8d.) 



"Such a book as this is calculated, a.t least, to give pause to the Weismannians. Dr. Kidd has 

 broken ground in a commanding position, and we are anxious to see how his attack can be met." 

 The Irish Naturalist. 



" This is an interesting contribution to the dynamic or Lamarckian principles of evolution. . . . 

 The author seems to have made out a good case ami to have been led by the legitimate use of the 

 inductive method to what seem to be valid and natural conclusions." Science. 



" It is urged that . . . the doctrine that acquired characters are never inherited does not hold 

 good, and hence a Lamarckian explanation of the phenomena must be accepted. The case, as 

 argued by Dr. Kidd, appears to be a strong one. and it will be curious to note what the Weisman- 

 nists will have to say in reply." Ktwivledge. 



THE DIEECTION OF HAIR IN ANIMALS 



AND MAN 



Demy 8vo, Cloth, Illustrated. Price 5s. net. 



(Post free, price 5s. 4rf.) 



" Dr. Kidd shows much ingenuity in explaining the various causes which, in his opinion, have 

 produced the different hair-slopes, and the illustrations with which the book is liberally furnished 

 are of considerable assistance to the reader." Westminster Review. 



" The description of the facts can be commended. There is evidence that considerable care has 

 been taken iu the collection of observations, and the illustrations are excellent." Mani-hester 

 Guardian. 



" That the direction of the hair-slope in mammals varies much is a fact well known to zoologists ; 

 but we are not acquainted with any general work, such as the present, in which the facts are put 

 together within one cover. The author has, therefore, in any case, accomplished a piece of work 

 which supplies a definite want in the literature of zoology. The usefulness of this general summary is 

 furthermore enhanced by numerous clear figures which show at a glance the essential facts." Lancet. 



PUBLISHED BY 



ADAM AND CHARLES BLACK, 4, 5, & 6 SOHO SQUARE, LONDON 



