* 
62 Scientific Intelligence. 
5. Elephas Americana in Mewico.—F. R, DirkENDERFER, of 
Lancaster, Pa., reports to one of the editors, that in*May, 1870, he 
opened, in Chihuahua, Mexico, a bed containing a large number of 
teeth of the extinct elephant. The teeth formed with coarse 
gravel a compact conglomerate. It is probable that search in the 
region would bring to light the tusks and other parts of skeletons 
of the elephant. 
6. Report of the Geological Survey of Ohio ; officers of the 
Survey, J. S. Newserry, Chief Geologist ; Epwarp Orton and 
E. B. Anprews, Assistant Geologists; T. G. WorMLEy, Chemist, 
F. B. Merk, Paleontologist. VolumeI, Geology and Paleontology; 
Part I, Geology. 680 pp. 8vo. Columbus, Ohio. Pub- 
lished by authority of the Legislature of Ohio.—The publication 
the first volume of this report has already been briefly am 
h 
nounced. The volume opens with a historical sketch of the pre 
w.M 
in a popular way of the general geological relations of the rocks of 
be 
topographical features, but throughout its whole length the rocks 
are raised in a distinct arch, from which they dip away, on one 
in the sea around them when they stood as islands. od 
strata very generally thin out toward the arch, proving thus thelt 
subsequent origin. Besides presenting his own observations OF 
the subject, Dr. Newberry appeals to facts obtained by Prot 
Orton in his careful investigations of the Cincinnati region 
on. ‘ 
Newberry describes also the special geology of Cuyahoga County, 
treating of its rocks, fossils, lake ridges or shore terraces, drut 
account of the geology of Summit County. 
economical productions, including coal, ete.; and adds a briefer 
: a 
