REVIEWS. 113 
We miss a chapter giving directions to the beginner in the diffi- 
cult art of dissection. A figure to accompany the explanation of 
the parts of the skeleton of a rat in order to illustrate the verte- 
brate skeleton, would also add to the value of the manual. 
The classification is mostly taken from the anatomical system 
of the Germans. In a lineal arrangement, such as the author is 
obliged to adopt in a book, the Mollusca follow the Vertebrata, 
then succeed the third sub-kingdom, Arthropoda; the fourth, 
Vermes; the fifth, Echinodermata ; the sixth, Coelenterata; and 
the seventh and last, Protozoa. 
In looking over the chapter on Arthropoda (Insects and Crusta- 
cea) we find some things to criticise. The Cladocera are spoken of 
on p: cv. as a “family.” By some naturalists of high standing, 
such as Claus and others, this group is considered as a suborder. 
On p. cix. where certain larve of insects are mentioned as having 
the digestive canal “ aproctous,” we might add that the larva of 
` Stylops has the intestine ending in a blind sac. On p. 112 it is 
stated that the “ telson, or terminal so-called segment of the crus- 
tacea does not appear to possess the characteristics of a true seg- 
ment.” In Limulus, the ninth segment of the abdomen, well 
marked in the embryo, forms the caudal spine, or telson. It is 
a small thing to criticise, but throughout the work all the specific 
names, with very rare exceptions, begin with a capital; thus © 
marring the typography of the book. 
Ber Currure.* — Mr. Adair has succeeded in collecting for his 
annual a number of articles by our leading apiarians comprising 
much valuable information, both to bee keepers and to students of 
animal psychology. A proof of this is seen in the first article by 
Vogel (which we reprinted on p. 17), which contains so much bear- 
ing on the theory of evolution, and the principles of breeding. 
No art has profited more from the most abstruse researches of 
purely scientific men, than the art of bee keeping. Huber’s hive, 
the prototype of all our modern hives, was constructed by that 
philosopher, solely that he might the better watch the habits of 
bees to gratify his wonderful desire for knowledge for its own 
sake. The discovery of Parthenogenesis by Siebold and Berlepsch 
was a purely scientific one, but of the greatest value in the art of 
Cell a edt ete satis tales ee ae 
* Annals of Bee Culture for 1870, A Bee Keepers’ Year Book. D.L. Adair, editor. 
Louisville, Ky., 1870. 8vo. p 50 s a 
AMER. NATURALIST, VOL. V.  —s_‘ 8 
