174 GEOLOGICAL SURVEY OF THE TERRITORIES. 



For a complete list of tbe fossils fouud at tbis locality I refer to Pro- 

 fessor MeeU's report. 



Layers 10 and 11 probably represent tbe entire extent of tbe Carbon- 

 iferous beds. No. 1 shonld probably be referred to tbe Iluronian series, 

 wliile No. 2, I believe, represents tbe Potsdam group, or at least a por- 

 tion of it. From No. 3 to No. 9 includes tbe remainder of tbe Silurian 

 beds. Tbe section given above was made witb all tbe care possible in 

 tbe limited time atibrded. More extended observation will no doubt 

 result in tbe discovery of new organic forms and tbe more accurate de- 

 termination of tbe age of tbe various beds. We followed up tbe East 

 Gallatin Iliver, reacbing Bozeman on tbe 15tb of October, wben tbe 

 expedition disbanded for tbe season. 



Fig. 43 sbows tbe relations of tbe various springs on Bear Kiver, 

 wbicb were described in tbe report of 1871. Tbese springs were de- 

 scribed by Fremont in 1S43, and called tbe Beer Springs, from tbe 

 agreeable taste of tbe water. 



