REPORT ON ZOOLOGY, MDCCCXLIII. 



vollig umgearbeitete Aufl. 1843. IsteLief: Saugthiere unrl 

 Vogel.* 



Gives a very comprehensive aud accurate exposition of the anatomical 

 conditions of the animal structure, on this occasion arranged, not according to 

 the organic systems, but, what is much to be commended, according to the 

 classes of animals. As the 'Icoues Zootomicse' of the same author are con- 

 tinually referred to in giving the anatomical characters of the classes, the 

 knowledge of the subject is in consequence much facilitated. 



Graveuhorst's ' Vergleichende Zoologie' (Bresl. 1843) treats rather co- 

 piously of the classes of Mammalia and Birds, with reference to their external 

 and internal characters, as well as to their useful and injurious properties, 

 and will prove very serviceable as an introduction to those classes. 



Of Blaiuville's 'Osteographie,' the Twelfth and Thirteenth Parts, em- 

 bracing the genera Felis and Cams, have appeared. 



Among general zootomical works, falling within the scope 

 of this Report, are also to be mentioned : 



Recherches sur le Developpernent dcs Os et dcs Dents, par M. Flourens 

 (Archives du Mus, d'Hist. Nat. ii, p. 315) ; a very copious and accurate 

 work, accompanied with twelve remarkably beautiful plates. 



Supplement au Memoire sur les Dents des Musaraignes et autres 

 Mammiferes, par M. Duveruoy (Comptes rendus, xvii, p. 98). According 

 to the Report of the Commission, the Memoir at length, with the figures, 

 will appear in the Memoires des Savans etraugers, until which time the 

 Reporter reserves his account of this interesting work. 



Observations on the Semen and Seminal Tubes of Mammalia and Birds, 

 by G. Gulliver. (Ann. Nat. Hist, xi, p. 511.) The author has measured the 

 seminal vessels in Man, many Mammalia, and Birds, and appended remarks 

 upon the condition of the semen and testicles at different seasons of the year. 



Additional Measurements of the Blood-Corpuscles or Red Particles of 

 Mammalia and Birds, by G. Gulliver. (Ann. Nat. Hist, xii, p. 367.) Addi- 

 tions which the author has made to his observations published in the 

 English translation of Gerber's Anatomy. 



Remarks on the Development of the Cranial Ridge in the Mammalia, and 

 on the Development and Function of the Osseous Cavities, by George 

 Jager. (Midler's Archiv fi'ir Anatomic, 1812, p. 433.) 



Several of the Reports on the Transactions of the Zoologi- 

 cal Societies and Meetings have not yet reached the Re- 

 porter. 



* [The text of this work has been translated into English by Mr. A. Talk, 

 and published with the title 'Elements of the Comparative Anatomy of the 

 Vertebrate Animals,' 8vo, London, 1845. EDITOR,.] 



