51 



high mountain chains, which, since the Pliocene epoch, has 

 never been invaded by the waters of the sea. What then is 

 there strange in the fact that the one should have had nnammoths 

 at a time when the other had none ? Thus far I do not see any 

 reason for assuming with M. D'Archiac two epochs of strioe and 

 furrows. What is the law, either paleontological or zoological, 

 which proves that the same animals have lived every where at 

 the same epoch ? " 



Mr. Desor remarked that M. Martins enters here upon entirely 

 new ground, by setting .aside one of the broadest principles of 

 geology, which was almost a creed. He was not himself pre- 

 pared to meet the question on this new ground, which could not 

 fail to attract attention, and will undoubtedly give rise to many 

 interesting discussions. 



Mr. Desor stated that he had recently received from 

 Mr. Logan a statement that the fossil Mallotus of Bytown 

 is identical with Mallotus villosus, now living in the waters 

 of the Atlantic coast. 



Dr. Cabot announced the donation of the following birds, 

 namely : — Sterna acujlavida, male, Yellow-tipped Tern ; 

 iS.fuliginosa(l)y male, Sooty Tern; S. Cay anensis, male, 

 Cayenne Tern ; Anous stolidus (J), male, Noddy Tern ; 

 Graculus Floridanus, male and female, Florida Cormorant ; 

 Larus atricillus, male, Black-headed Gull ; GalUnida gale- 

 ata, male, Florida Gallinule; Ardea leiicogaster, male and 

 female, Lousiana Heron ; Corvus ossifragus, male and 

 female, Fish Crow ; Cardindlis Virginianus, female, Car- 

 dinal Grosbeak ; Merops apiaster, male, European Bee- 

 eater ; Coracias garrula, male, European Roller ; Tyrannus 

 griseus, male and female, Pipiry Flycatcher, — from Dr. 

 Henry Bryant ; Tttrao tctrix, male, Black Cock ; Tardus 

 _p^7a?•^5, male. Fieldfare ; Oriolus galbiila, male, European 

 Oriole ; Regulus cristatus, male and female, European 

 Crested Wren ; Pyrrhula ruhricilla, female, Bulfinch ; Pas- 

 ser domesticus, female, European Sparrow, — from Mr. Al- 

 gernon Coolidge ; Icterus BuUoclcii, male, Bullock's Oriole ; 



