A CENTURY OF BOTANICAL EXPLORATION IN MONTANA. 9 



to Great Falls. A report of his collections was published in Ann. 

 Rep. Chief of Engineers, U. S. A. for 1878, App. QQ, pp. 1681-1687, 

 and in that for 1880, App. SS, pp. 1-20. His collections should be in 

 the National Herbarium and there appears to be a set at the Gray 

 Herbarium. 



Sereno Watson of the Gray Herbarium made a trip into western 

 Montana in 1880, collecting data in regard to the forestry of the re- 

 gion for the loth census. His route was from Garrison to Dillon and 

 westward throught the Big Hole Basin and down +he Bitter Root 

 to Missoula and out by way of the Lo Lo pass. He made a con- 

 siderable collection, now at the Gray Herbarium, while his report 

 is published by Sargent (loth Census. 9: 564-566. Washington, 

 1884). 



Robert S. Williams, while engaged in Other business, made ex- 

 tensive collections extending over some 19 years (1880-1899), in- 

 cluding Lichens and Mosses, as well as flowering plants. His 

 plants came mainly from the Little Belt and Highwood mountains, 

 Great Falls (1880-1891), Columbia Falls and adjacent Rockies (1892- 

 99) and Teton county (1897). His private collection is at the 

 Montana Agricultural College, Bozeman, Montana, but duplicate 

 sets of his plants have been distributed at the Nat. Herb., N. Y. Bot. 

 Gard., Gray Herb., Mo. Bot. Card., Univ. of Mont., and other her- 

 l>aria, and he has published several papers dealing with our flora. 



Frank Tweedy, a topographer in the U. S. Geological Survey, 

 while working in southern Montana and the Yellowstone Park, 

 made extensive collections in this state, which are mainly in his 

 private herbarium at Washington, with partial sets at the N. Y. 

 Bot. Card., Coll. of Pharmacy, N. Y., Nat. Herb., Gray Herb., and at 

 Mont. Agr. Coll. He collected during the years 1881-2 and 1886-91 

 within the Crow Reservation and the counties of Carbon, Sweet 

 Grass, Park, Gallatin, Madison, Beaver Head, Silver Bow, and Jef- 

 ferson. He published a Flora of the Yellowstone National Park 

 (Washington 1886). 



William M. Canby, a banker of Wilmington, Del., was here in 

 1882-83 with the Northern Transcontinental Survey along with 

 Charles S. Sargent, who was studying the forestry of the state. 

 The collections of the former are now at the College of Pharmacy, 

 York City and those of the latter at the Arnold Arboretum, 



