254 Analytical Notices of Books, 



curious bear ; although in some respects, the exhibition of the teeth, for 

 example, and the delineation of the remarkable spot on the breast, it is 

 certainly superior to any of its predecessors. A brief notice of, and ex- 

 tracts from, the earlier accounts of this animal by Catton and De Larae- 

 therie, occupy nearly the whole of a very short paper. 



Dr. H. C. L. Barkow's Essay " Ueber den verlauf der Schlagadern am 

 *' Kopfe des Schafes" forms, as we are told in a note, the commencement 

 of a series of valuable memoirs on comparative and pathological anatomy, 

 the continuation of which is deferred till the next volume. In the pre- 

 sent article the arteries of the head of the sheep are described with much 

 minuteness, and their peculiarities of course and distribution carefully 

 noted. A work so purely anatomical, and embracing such numerous 

 details, it is obviously impossible for us to analyse in a satisfactory man- 

 ner ; we cannot therefore do better than refer such of our readers as feel 

 an interest in the minutiae of comparative anatomy to the paper itself. . 

 The last article relating to Mammalia, is a " Comraentatio de Ura 

 " nostrate ejusque Sceleto," by the industrious anatomist, Bojanus, in 

 which the authour takes a review of the various opinions advanced by 

 Cuvier and others concerning the Urus, or Bison, of Eastern Europe, and 

 the fossil remains of the different races of the bovine genus, and gives a 

 detailed account of the habits and structure, and more particularly of 

 the bony skeleton, of the celebrated breed, which is at present restricted 

 to a single forest in Lithuania, containing about six hundred head. These 

 have been of late years taken under the special protection of the empe- 

 ror, the hunting of them being strictly prohibited, and winter food being 

 provided for their subsistence. M. Bojanus is decidedly of opinion, that 

 the Urus and Bison of the Greeks and Romans, and of later European 

 authours, are one and the same animal. He refers the fossil remains of 

 the genus to two distinct types ; the one, which he denominates Utits 

 prisons, and of which several crania are extant in different museiuns^ 

 being closely allied to the living Bison ; and the other, the Bos primige- 

 niusy approximating, but in a less degree, to the domestic Ox. Of the 

 latter of these antediluvian animals, besides numerous crania and other 

 fragments accumulated in collections, there exists in the Jena Museum a 

 nearly perfect skeleton, a figure of which accompanies the present pa- 

 per. The Lithuanian Urus is described from two specimens of different 



