228 Scientific Intelligence. 
dromeda, Diospyros, Sapotacites, Bumelia, Hedera, Cissites, 
Protophyllum, Acerites, Negundoides, Greviopsis, Anisophylium, 
Celastrophyllum, Rhamnus, Juglans, Pyrus, Prunus. ‘The whole 
number of species enumerated is 130: of these, eight are of the 
sens Quercus, five, of Populus, six of Plutanus, six of Sassa- 
existing gover’ as they embrace characters of two or more. The 
leaves are mostly entire, coarsely veined and coriaceous. No 
beds in the Rocky Mountain region older than Seances contain 
any related species, or a single Angiosperm. The author remarks 
that the facts “seem to prove a collateral development of different 
primitive types, and therefore, the appearance at certain epochs of 
those original forms which, at each geological period, have 
changed the character of the vegetable world, and which have 
not any connection with antecedent t pes 
(4.) Lists of Elevations principally t in that portion se the United 
States west of the Mississippi River. Collected and arranged by 
Gannett, M.E. 72 pp. 8vo. Washington, 1875. —"This oe 
artme phy. 
(5.) Meteorologicai Observations made in 1873 and 1874 in 
Colorado and Montana, prepared by G. B. Dineeae. 58 pp- 
8vo. 
cated.)—I onaeres 4 regs our + last partes that state, on the 
— of yma oe that this genus is identical with “ 
Stylino f Marsh, a lready descri in your May number 0 
the care ae a. 26 Pistieans Marsh’s diagnosis be accurate, the 
gopers are distinct, as the description cited ascribes six molars t? 
ylinodon, while five only exist in Calamodon. This I st ated in 
