290 Bibliography. 
(a — bs and never before — was given to Prof. Agassiz 
or his rches on Fossil Fishe 
mong re prizes offered, is one for 1854 in the department e 
Mathematics, as follows To determiné the equations. of the general 
prize isa tt medal of 3,000 franes. 
ere is also an ee prize for 1853, on the application of 
steam to navigation. The prize was proposed first in 1836, and has 
been continued to 1938, 1841, 1844, 1848, and finally to 1853. It is 
offered ‘ for the best work or memoir on the most advantageous em- 
ployment of steam for steamships, and upon the best system of mechan- 
ism, . installation,’ stowage, and a sate for such vessels.” The 
prize is 6,000 francs. Time, Dec. 1, 1853. 
|1. M. Oserwauser, the distinguished microscopic artist, has been 
decorated with the Cross of Merit, by the king of Bavaria. 
12. De. MANTELL, of London, has pencived: from the British govern 
ment a pension of one hundred pounds sterling in testimony of his 
tinguished services to science. 
ITSCHERLICH, of Berlin, was lately elected foreign associate of 
the Academy of Sciences, in place of Oersted, of Copenhagen, deceased. 
OBITUARY. 
age ed 
r. James B. Rocer s, Professo r of Chemistry in the 
e Me dic 
Department of ‘the Waiecaae of Poninsteasie. ‘died | in Philadelphia, in 
June last. 
V. BrB.iocRAPHy. 
1. On the Osteology of the head of Hippopotamus and a nde cript 
of the Osteological Characters of a new genus of a at potamida ; by 
Dr. J. Leipy. 15 pp. 4to, with a ogy a (Pr om the Journal of the 
Acad. Nat. Sci., vol. ii, 2d ser., Par 852.)—Dr. Leidy. in this paper 
describes specimens of the skulls of the re a amphibius 
(H. senegalensis, Desmoulins ) and H. capensis, Desmoulins, in 
pga ce of the Academy. in next takes: up, with much soe the 
us, Linn. 
adult animal, from St. Paul’s River, cin cafe and also two oth 
rate skulls. ‘The length of the skeleton is 5 feet 8 inches. gis 
