APPENDIX J. 









AL.E0NT0L0GK AL ( OIJ 

 By F. B. Mkkk. 











Ca] 



Topograph* 

 in, the zealou 



■<tl Engineei 

 n the follow 



ft rWest,yoi 



Washingtc 



■s, I '. 8. A . : 



IN ClTT, I 



ssils coUee 



>. C, Map 



ted by Mr. 

 >ns of such i 



Henry E 



ngle- 



the; 



1-known form, 

 v have not liitl 



^ 



mud at suVh remote 





ocalities. I 



the fact 

 n additi< 



thal 



tied 

 don 



with known ; 

 Mess new to i 



:•:;:::'"" 



described as new, th 







■ of then 





the 



bro 

 tO E 



loo- 



Lie, where onh 

 re marked chai 

 The fossils c< 



©portion of 



'Inch little 



rs, as well a 



) the localities at wh 

 s useful to future e> 

 lines could be givei 



the collection «jive e 



bought* a 

 ich they o« 

 :plorers. ] 

 i, a brief d 



vidence ot 



full list of 



res, been ad 

 ' the existei 



all tlit" f 

 out this 

 ded. 



is 



line of survey of rocks belonging to the Devonian. Carboniferous, Permian, (Yetace- 

 ous, Jurassic^ and Tertiary epochs.* Those of Devonian age were collected in the 

 region of Humboldt Mountains, near the middle of the Great Salt Lake Basin, at the 

 following points: Latitude, 3!)° 45' north, longitude, 114° 45' west: latitude, 3!>° 33' 

 north, longitude, 115° 58' west; and latitude, 39° 30' north, longitude, 115° 36' 

 west. 



The specimens obtained at the first of these localities are in slabs of hard dark- 

 bluish limestone, and consist of fragments of Trilobifcs belonging apparently to the 

 genera Homalonotus and Proetus. These may possibly be Upper Silurian species, but 

 they have- so much the appearance, so far as can be determined, of forms occurring in 



beds. (See a communication by Mr. Engelmann and the writer, Proceedings Academy Natural Science, Philadelphia 

 April, 1860.) 



