BIRDS. 
BY 
PEOFESSOE ANDE. WAGNEE OF MUNICH. 
The report on the contributions to Therology has so far 
exceeded the hounds assigned to it, that the reporter is con- 
strained to abridge the Ornithological division, which he can 
readily do, by confining himself principally to references ; and, 
indeed, it would require more time than he has at his disposal, 
for a critical review of all the new species made known during 
the last year. 
In the following enumeration of the general contents of 
the works to which access has been had, those, as usual, are 
not separately named, which, from embracing both classes of 
warm-blooded animals, have already been mentioned in the 
Therological division. 
Nomina Systematica generum Avium tarn Viventium quam 
Fossilium. Auctore L. Agassiz. Recognoverunt Princeps C, 
L. Bonaparte, G. R. Gray, et H. E. Strickland. Solodur. 
1842. 
Agassiz goes on briskly with his Nomenclator Zoologicus. The Orni- 
thological division has quickly followed the Therological, elaborated by 
naturalists well fitted for the task. This catalogue is of the greatest 
utility, for the facility it gives us of finding out the family, under which 
the new generic names, in a great measure little known, are to be brought. 
The most difficult part is the etymology, as the more recent dilettanti, in 
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