6o2 Ge?ierai Notes. f July, 



articles and volumes is 534, of which 109 are on comparative 

 anatomy and general anthropology, 48 on general craniology, 35 

 on special craniology, 27 on ethnology, and 19 on miscellaneous 



As mentioned above, the Saturday lectures can be procured 

 from Judd & Detweiler, of Washington, at 75 cents for the vol- 

 ume containing the whole course. 



GEOLOGY AND PALAEONTOLOGY. 



Lesquereux on the Tertiary Flora as related to the 

 Tertiary Animals of the West. — In regard to Professor Cope's 

 recent papers on the Cretaceous and Tertiary groups of the 

 Western Territories, Mr. Lesquereux writes us that he has care- 

 fully examined his conclusions and must say that he approves 

 them fully and that they agree well with his own. "As to the 

 Laramie group, while I call it Eocene, Cope must decide accord- 

 ing to the animal remains. I must stick to the plants. The dif- 

 ference is only in name and it will be better understood hereafter. 

 For the so-called Green river group, I have always found a great 

 difference of type between the plants of Green river station, in- 

 cluding Alkali station, and those of White river, Florissant and 

 Elko. I therefore readily admit, as I have already done, two dif- 

 ferent stages of this group, as indicated by the plants. A lower 

 one for Green river station and Alkali and an upper stage for 

 that of White river, so far we agree. 



" But now let us see what the Miocene will say. From the 

 Laramie group upwards there is already a number of permanent 

 types recognized in subsequent formations. There is a marked 

 identity between the plants of the Laramie group and those ol 

 the Union group, and then between those of the last group and 

 White river, we find the Lower Miocene very clearly character- 

 ized, then follows the Middle Miocene or the Carbon and Alaska 

 groups, and then the upper Miocene or Pliocene of the 

 Chalk bluffs of California. All these facts considering the 

 character of the plants, constitute by persistent species a continu- 

 ous flora which it is extremely difficult to separate. Indeed if we 

 admit that all the plants described from the Union group repre- 

 sent the same geological stage, we can scarcely draw . ny hues o 

 separation for the Tertiary, which continues uninterruptedly from 

 the Eocene of Black Butte and Golden City to the flora of our 

 present epoch. Thus our present living flora would appear qutfe 

 as Cretaceous in some of its characters as that of Golden City. 

 F. V. Hayden. 



The Geological and Natural History Survey of Canada^-" 

 The Report of Progress of this Survey for 1879-80 forms a buiw> 

 octavo, accompanied by five maps of the regions ex P lor , ' s 

 illustrated by nineteen plates. The work of the GeoL 

 in 1 880 embraced surveys in the Northwest Territories, Manito , 



