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THE A MERK \ \ S X. 1 TURAEIST [Vol. LXI 



Eighty-six mammals and eleven birds were examined. Cutaneous 

 ridges were found to reach their full development only in primates. 

 The coarse walking pads of the large carnivora consist of rods, a feature 

 found also in the marsupial w^olf of Tasmania, and to some extent in 

 the eagle. The plantar surface of the other birds studied was merely 

 corrugated, like that in Ornithorhynchus, Echidna and fourteen other 

 mammals. Scaly palms and soles occurred in nine of the eighty-six 

 mammals; smooth epidermis was found only in Proteles, and a com- 

 plete covering of hair only in the rabbit. The palms and soles of the 

 primates are then described in detail, with numerous figures. 



The second part of the book deals with the form and arrangement 

 of the papillae of the coriuni, and is illustrated from sections magnified 

 generally fifteen or twenty diameters. Since half-tone text-figures 

 will not print well on paper with a rough surface, such as is used in the 

 first part of the book, the publishers have printed pages 81-144 on 

 glazed paper. The volume concludes with a physiological discussion, 

 a summary, and an extensive bibliography. 



F. T. Lewis. 



Observations on the Young of the Red Kangaroo.— A red kangaroo, 

 Macropus rufus (Desra.), was born in the Barnum and Bailey menagerie 

 a short time before I became their zoologist, which was in March, 1904. 



The suj.ennfiHlrnt insisted iliut he hall known of its presence^in the 



when he first discovered it. About a month after my arrival the little 

 fellow bcaan coming out. Four months seems rather long for the 

 young to renuiin in the pouch before beginning to come out, in view of 

 their very ra])i(l growth, but the period cannot be less than two months, 



out, hr would" still rush back on the slightest provocation,^ going in 

 head first and turning round, but leaving his tail and long lund legs 

 protruding eighteen or twenty inclies. In this ])osition he presented 



At first she would restrain hini with hrr paws from going to the far 



