AMERICAN GEOLOGY SURVEYS UNDER HAYDEN. 



603 



of Cambridge, Massachusetts, accompanied the party for a time, 

 making valuable botanical collections. 



St. John noted the overturned character of a portion of the Caribou 

 Range and made numerous sections across the Teton Range. Peale 

 noted that in the region of the Blackfoot Basin the structure was that 

 of a series of anticlinal and synclinal folds, the streams sometimes 

 occupying the synclines and sometimes the monoclines. Also that 

 there were at least three parallel anticlinal axes having the general 

 direction northwest and southeast. 



Hayden's twelfth and last annual report, bearing date of 1879 (1883), 



was issued in the form of two volumes of upward of twelve hundred 



pages, and included the work of the corps for the field season of 1878 



and the office work until the closing up of the survey, 



work of Hayden in wn i c h, bv law, took effect June 30, 18T«.». 



Wyoming, lo7!>. * 



The headquarters of the survey were at Cheyenne, 

 Wyoming, as in previous years, and but four 

 parties organized. The geological work was 

 under the charge of W. H. Holmes. A. C. 

 Peale, and Orestes St. John, and the pale- 

 ontological work under Dr. C. A. White. 

 Mr. Holmes made a general survey of the 

 park, while Peale, assisted by J. E. Mush- 

 back, was occupied in making detail studies 

 of the geyser and hot-spring localities. 



The party, with St. John as geologist, 

 surveyed the Wind River Mountains and a 

 portion of the Wyoming and Gros Ventre 

 ranges. The work of the topographic party 

 in the Wind River and Grand Teton re- 

 gions was hampered by their being robbed 

 of all their animals and a portion of their outfit by hostile bands of 

 Indians. 



During the summer of 1877 Prof. S. H. Scudder, with a party, 

 visited the Tertiaiy lake basin at Florissant and made an extensive 

 collection of fossil insects, the published descriptions of which have 

 made this region classic. 



The two volumes mentioned are almost monographic as far as the 

 hot springs and geysers are concerned, and are rendered unusually 

 attractive for their time b}^ the sketches and panoramas of Holmes. 

 Peale gave a detailed description of all the springs and geysers of any 

 importance found in the park, describing and tabulating over 2,0<>0 of 

 the former and 71 of the geysers. Holmes's report was accompanied 

 by some brief petrographic descriptions by Capt. C. E. Dutton. 



Dr. F. V. Hayden was born at Westfield, Massachusetts, September 7. 

 1X29. His father dying when he was but ten years of age and his mother 



Fig. 108.— William Henrv Holmes. 



