314 Setentifie Intelligence. 
the public. The volume commences with the special report of 
Dr. Hayden, containing new facts, both economical and scientific, 
from the region of the geysers, and the country surrounding, wit 
a reconnoissance of the mining region on Clark’s Fork of the Yel- 
lowstone, and a partial résumé of previous investigations. New 
only some of the smaller of which appear in this volume. 
The Report of Dr. Hayden is followed by those of other mem- 
ciferous sandrock and Chazy limestone) in Wyoming Territory 
—rocks hitherto not found out of Canada excepting by Prot 
Bradley near Knoxville, East Tennessee. An abstract. of the 
report of Prof. Bradley, by himself, has been already given oD 
pages 194 to 206 of this volume. : 
e physical geography and agricultural resources of Minne- 
sota, Dakota and Nebraska, are well described in the followmg 
report 4 Cyrus Thomas. 
Aes L is occupied with special Reports on Geology and Paleom- 
tology. : 
Mr. L. Lesquereux has an admirable Report on the Coal or Lig 
nitic formation of the Rocky Mountain territories, and its = 
—as already announced in this volume. The subject 18, f 
with great thoroughness, and over a hundred new spectes aor 
sils are described . 
H. N oissance 
: . Meek, des 
Then follows the Paleontological Reports of ee vertebrate 
fossils; of E. D. Cope, on the extinct vertebrates (mammals, rep 
ith not 
an ne 
logy , illustrated by two ‘plates of the Synoplothert 
Cope, and four of the Tosnlophodgn pene Cope; also @ a 8 
on primitive art in the Bridger Basin, by J. Leidy, and 8 
on the ancient mounds of Dakota, by C. Thomas. potany 
Part TIL consists of special reports on the zoology amd * i, 
of the territories: on the mammals and birds of the expedit ‘by 
C. H. Merriam ; the Coleoptera, by G. H. Horn; Orthopte™ 
