SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 66 



During- the investigations and collecting, numerous photographs, 

 some of which are here reproduced, were taken bji Dr. and Mrs. 

 Walcott, of geysers and hot springs, and of deposits made from 

 the waters through evaporation and organic agencies. 



The collections were brought in to the various camps on pack 



Fig. 4. — Nearer view of cone of Lone Star Geyser, showing outer appearance 

 of deposit. Photograph by Walcott. 



horses and buckboard, and subsequently packed for shipment at 

 Fort Yellowstone and Yellowstone. Material assistance was afforded 

 by the cooperation of the Acting Superintendent of the Park, Col. 

 L. M. Brett, U. S. Army, and officers of the United States Engineer 

 Corps who are in charge of the maintenance and development of the 

 park roads and trails. 



