GENERAL CONCLUSIONS. 41 



northwest of Washington Territory near Frazer River ; and by short 

 preliminary descriptions of my own, in the American Journal of Sciences 

 and Arts, of three small groups of fossil plants from far distant localities 

 and different geological ages. The materials of the first had heen obtained 

 by Dr. John Evans from Vancouver and Bellingham Bay; 1 they repre- 

 sent fourteen species. Those of the second came from Southern Ten- 

 nessee, sent by Professor James Safford, who published in his Report 

 descriptions and figures of the eleven species determined from his speci- 

 mens. The specimens of the third were obtained by myself from the 

 Chalk Bluffs of the Mississippi, near Columbus, Kentucky. They repre- 

 sent only seven species which have not been figured. In 1861 Professor 

 Ileer published in a separate pamphlet, with two plates of illustrations, 

 seven species from a lot of materials sent to him as collected by Dr. 

 C. B. Wood at Nanaimo, Vancouver Island, and Burrard Inlet. In 1863 

 Professor Newberry recorded in the Boston Journal of Natural History 

 the characters of seven species procured by the geologists of the Boun- 

 dary Commission. And the same year I published in the Transactions 

 of the American Philosophical Society of Philadelphia thirty species from 

 important materials communicated by Professor Eugene W. Hilgard, then 

 State Geologist of Mississippi. The species are figured in nine plates. In 

 1868 Professor Newberry described and reviewed in a valuable memoir, 

 "The Ancient Floras of North America," forty Tertiary species from the 

 Fort Union group, all from specimens procured by Dr. F. V. Hayden in 

 his explorations of the Western Territories, 2 and the same year I pre- 

 pared a preliminary report on the characters of twenty-two vegetable 

 Tertiary forms, from materials procured by Dr. John L. Leconte in his 

 geological survey for the Union Pacific Railroad, and from specimens 

 sent by Dr. F. V. Hayden. To this we have to add. for this decade of 

 years, as an important work on the Tertiary plants of North America, 

 the "Fossil Flora of Alaska" (Flora Fossilis Alaskana), by Ileer, with an 

 introduction anil general remarks in German, and the descriptions in Latin 

 of fifty-six species, illustrated by ten plates. The plants are all referred 

 to the Miocene. 



Since 1870, and from the specimens collected by the United States 



1 Tin- spurn's were described in detail and figured Cor :i Reporl in preparation by Dr. Evans, then 

 United Stuics Geologist. But, so far us I know, ilii> Report has not been published. 

 '-' These species have been figured and engraved later ■with those of tin- Cretaceous mentioned above. 



