PRBFACB. 



We publish herewith a few notes from Long's Expedition to 

 the Rocky Mountains, or more accurately, "Account of an Ex- 

 pedition from Pittsburgh to the Rocky Mountains, Performed 

 in the years 1819 and '20, bj^ Order of the Hon. J. C. Calhoun, 

 Sec'y of War: under the Command of Major Stephen H. Long. 

 From the Notes of Major Long, Mr. T. Say, and Other Gentle- 

 men of the Exploring Party. Compiled by Edwin James, Bot- 

 anist and Geologist for the Expedition. In two Vols.— With 

 an Atlas. Vol. I. Philadelphia: H. C. Carey and I. Lea, Ches- 

 nut St. 1823." 



Thomas Say accompanied this party as zoologist and hence it 

 is to be presumed that the following notes were mainly, if not 

 wholly, from his observations. The compiler, Edwin James, 

 states in the preliminarj^ notice, page i, that important contri- 

 butions of entire passages from Major Long and Mr. Saj^ are 

 recognized in various parts of the work, but he has not 

 always been careful to indicate the place of their introduction. 

 Again, some of the new species are credited directly to Say, as 

 will be seen by consulting these notes. We therefore have no 

 hesitation in publishing all these paleontological foot notes as 

 Say's work, though their diction and orthography show the hand 

 of the compiler. Only such portions of the main text of the 

 work have been introduced here as tend to make the meaning of 

 the paleontology more clear. 



The attention of the present publisher was called to these 

 notes by Mr. Weller of Chicago Universit}'. 



G. D. Harris. 



Ithaca, N. Y., Jan. 4th, 1896. 



