ee ee ee 
' 
GENERAL CONCLUSIONS. 4] 
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 been obtained 
by Dr. John Evans from Vancouver and Bellingham Bay;’ 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 figtred. In 1861 Professor 
Heer 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” 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 Heer, with an 
introduction and 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 The species were described in detail and figured for a Report in preparation by Dr. Evans, then 
United States Geologist. But, so far as I know, this Report has not been published. 
* These species have been figured and engraved later with those of the Cretaceous mentioned above. 
