CCX GENERAL SUMMARY OF SCIENTIFIC AND 



covered in one of the Pliocene formations of the West a new 

 species of dog of large size, which he calls Canis ursinns. 



Professor Cope has discussed the phylogeny of the camels, 

 based on several genera of fossil camels exclusively North 

 American, as no well-determined form of this group has been 

 found fossil in the Old World. Until such are discovered, 

 there will be much ground for supposing that the camels of 

 the Old World were derived from American ancestors; while 

 the presence of the llamas in the existing South American 

 fauna indicates the absence there of the conditions which 

 caused their extermination from North America. A new spe- 

 cies of Mastodon has also been described by Professor Cope, 

 from New Mexico, discovered while he was attached to 

 Wheeler's survey. 



A gorilla, exported to Hamburg, where it soon died, has 

 been preserved in spirits, and is to form the subject of a 

 monograph by Dr. Bolau, by whom several important and 

 doubtful points in the anatomy of the anthropoid apes may 

 be settled. 



The embryological history of man, as compared with other 

 vertebrates, has been treated of in a popular work by Haeckel, 

 entitled " Anthropogeny, or the Developmental History of 

 Mankind." The work is being translated into English. 



BOTANY. 



Insectivorous Plants. Three ways are now recognized by 

 which plants entrap insects. First, as in Dio?icea nwiscijmla, 

 or Venus's fly-trap, where the two blades of the leaf close 

 rapidly together, and the cilia upon the edges interlock so as 

 to imprison any insect which may happen to be inside; sec- 

 ond, as in different species of Drosera, where the leaves are 

 covered with hairs, at whose tips is a sticky exudation by 

 which insects are caught ; third, as in different species of 

 Utricularia, where the leaves are furnished with small blad- 

 ders, into which small insects crawl, but are prevented from 

 leaving by a peculiar arrangement of hairs around the orifice. 

 In Dionrca there are three highly sensitive hairs in the cen- 

 tre of the two lateral portions of the upper-part leaf, and the 

 closing of the leaf takes place when insects or foreign bodies 

 come in contact with these hairs. In addition to the highly 

 sensitive hairs just mentioned, there are also glands on the 



