Literary Notices. li 



b) R. buccalis, 



c) R. mandibularis externus to the hyoideomandibularis. 

 3. R. palatinus. 



Type II, 

 Land Salamanders. 



The Trigeminus consists of 



1. R. maxillae inferioris, 



2. R. maxillas superioris, 



3. R. ophthalmicus [profundus]. 

 The Facial consists of 



1. R. hyoideomandibularis, 



2. R. palatinus. 



In type I the divisions of the R. lateraHs facialis supply the supra- 

 orbital, infraorbital, and mandibular lateral canals respectively. In the 

 various species of Amphibia this ramus is developed inversely as the 

 ramus maxillae superioris ; it disappears in the terrestrial forms with the 

 atrophy of the lateral canals. Type I is illustrated by larvje of Sala- 

 mandra maculata, Type II by Geotriton [Spelerpes] fuscus. Ambly- 

 stoma punctatum obviously lies between these extremes. Protopterus 

 conforms in general to Type I. 



C. J. H. 



Ruber's Histology.^ 



This little book comprises a series of practicums, apparently those 

 used by the author in his classes, though the copy furnished us lacks 

 both title page and imprint. It is adapted for classes in medical schools 

 and elsewhere where it is desired to furnish the class with material 

 already prepared for the demonstration of structure rather than to give 

 instruction in the technique of the laboratory. Provision for the latter is 

 made, however, by the addition of a section of about 50 pages on the 

 methods for laboratory work. This section includes methods for mac- 

 erating, hardening and fixing, decalcifying, impregnation, injecting, 

 embedding, staining, and methods for preparing and staining blood 

 preparations. The last is accompanied by an excellent plate of blood 

 elements. The selection of methods has in the main been judicious, 

 though our experience would hardly justify so free use of mercuric 

 chloride as a fixer. The expositions are both clear and concise. In 

 the body of the book the number of exercises given under each topic 

 is small, but here again good judgment has been shown in their selec- 

 tion. Thus 19 studies are devoted to the nervous system, 7 to periph- 



*For sale by George Wahr, Bookseller and Stationer, Ann Arbor, Mich. 

 $1.50. 



