600 , THE AMERICAN NATURALIST. [Vor. XXXIV. 
inson, a case of intussusception of the ileum and cecum; Weber, 
Leblanc, Trasbot, Youatt, Gowing and son, etc. 
The chapter on Accidents and Operations covers the ground very 
thoroughly for the first heading, and includes, under the second, 
some of the more difficult operations as well as the lesser ones, such 
as removing of dewclaws, cropping, tailing, etc. 
Mr. Hill strongly advocates the use of chloroform, saying: “On 
the score of humanity, however, chloroform chiefly demands our 
attention, and with the knowledge that we are not inflicting pain is 
gained strength of nerve, confidence in ourselves, and, probably, a 
more successful issue to our patient." 
To members of his profession he writes: “We must remember 
that the most sacred duty of the veterinary surgeon is to prevent or 
alleviate pain and distress in animals.” 
An appendix gives a table of Medicines and their Doses, Poisons 
and their Antidotes, and also a Standard of Points for Judging. The 
standards are nearly all taken from those recommended by the 
various dog clubs, and consequently there are a few breeds which 
are not included, owing to inability to obtain a recognized standard 
of points in connection with them. 
The photographic reproductions of famous~dogs, the work of 
Thomas Fall, F.R.P.S., the well-known and artistic English pho- 
tographer, are very handsome. 
The index is full and accurate, the type clear and on good paper, 
and the book is of a convenient size. There are, besides those 
noticed in some of the quotations, many instances of defective style 
that might be quoted, but these are not of a kind that detract from 
the usefulness of the book. 
There is no list of illustrations, and, considering the excellence of 
these, and that there are no less than eleven plates, most of them 
giving two figures of celebrated dogs, this is a serious omission, one 
that ought not to have occurred, especially in a fifth edition. 
Ac Vor 
Studies on Hirudinea.— A posthumous paper by the late Arnold 
Graf! discusses exhaustively the structure and activities of the excre- 
tory organs of the leech. Though not concerned primarily with 
classification, it contains figures of several North-American species 
of Glossiphonia (*Clepsine") new to science. Graf’s studies of 
1 Hirudineenstudien, A44. der Kaiserl. Leop-Carol. Deutschen Akademie der 
Naturforscher (Halle), Bd. Ixxii (1899), Nr. 2, pp. 217-404, Taf. IX V, 26 text-figs- 
