OBSERVATIONS ON THE EXPEDITION 



In response to an invitation by the Union Pacific Railroad 

 Company, a large party ot scientists arrived in Laramie, one of 

 the principal cities of Wyoming, on the 19th of July. The 

 writer w^as at once impressed with the purity of the atmosphere 

 of this country and the sparkling water trickling down the 

 streets of this beautiful city, coming from a large spring two 

 miles away. To fully appreciate its purity and deliciousness 

 one must take a draught of it; no description will do it justice. 

 Two days after arriving in Laramie, the expedition moved to 

 the west, making a circle, the terminus of the trip to be the 

 Grand Caiion of the Platte River. We passed over excellent 

 collecting grounds both in plant and invertebrate fossils, and on 

 the eighth day of the trip we arrived at Aurora, the historic 

 dinosaur field, where Professor Marsh of Yale, more than 

 thirty years ago, discovered the bones of these immense lizards 

 which are fully described in the sixteenth annual report of the 

 Geological Survey. Here quite a number of specimens were 

 found, and after remaining a day and two nights, we started 

 for Freezeout Mountains, going by way of Medicine Bow, 

 a small station on the Union Pacific Railroad. In these 

 mountains the expedition was on virgin dinosaur fields and, so 

 far as I know, every member of the party found and shipped 

 some specimens of these bones. The writer, in connection with 

 Prof. S. B. Brown of West Virginia University, found five 

 vertebrae, two large femora and quite a number of large pieces 

 of other bones of these animals. In this region we saw the 

 bones that are being excavated by the American Museum 

 people, also the Field Columbian, the Wyoming University 

 and Kansas University Museums. 



