130 General Notes. [ February, 
Extinct REPTILES oF Inp1a.—Dr. Lydekker describes the. first 
Plesiosaurus discovered in India from the Umia f h. 
He refers to the discovery of remains of Megalosaurus from the 
upper cretaceous of Trichinopoli, and mentions the existence of 
a huge dinosaurian in the Lameta rocks of Jabalpur. It is repre- 
sented by a femur and caudal vertebræ, and he names it Titano- 
saurius indicus.. He, however, does not define the genus to which 
he desires the name to apply. 
PALAONTOLOGICAL CoursE.—This course, at the Jardin des: 
Plantes, by Prof. Albert Gaudry, includes an interesting discussion 
of the evidences of descent to be observed in the teeth and feet of 
the Mammalia artiodactyla. ‘One part of it published in the Revue 
Scientifique is illustrated with many excellent cuts which convey 
important evidence to the eye. He refers to American observa- 
tions in the same field, but commits,a minor error in ascribing 
three upper incisors to the genus Procamelus, stating that Leidy 
has so determined it. The fact is that Dr. Leidy was unac- 
quainted with the superior incisors of that genus, and that Prof. 
Cope first showed that it possesses but one, as in Camelus. Prof. 
Cope, however, discovered the genus /Protofabis, which possesses 
the three superior incisors referred to by Prof. Gaudry. 
GEoLocy oF Wisconsin.'—The Geological Survey of Wisconsin 
first instituted by the late Dr. I. A. Lapham, has been carried on 
with evident vigor by Prof. T. C. Chamberlain, and his assistants, 
R. D. Irving and Moses Strong. While Professor Chamberlain 
reports on the geology of Eastern Wisconsin, Mr. Irving describes 
that of Central Wisconsin, and Mr. Strong discusses the geology 
and topography of the lead region. An appendix on microscopic 
“lithology is contributed by Charles E. Wright. The illustrations 
are numerous and excellent, and the atlas of thirteen maps further 
enhances the value of the report. We have been especially inter- » 
ested in the account of the surface geology of the eastern portion 
of the state, particularly the description of the ancient fiords 
which run into Lake Michigan, and the determination of the 
Kettle range to be an old terminal moraine, as abundantly - 
proved by the interesting and excellent diagram facing p. 204. 
GEOGRAPHY AND TRAVELS. 
GEOGRAPHICAL Work oF Haypen’s Survey.—A photolitho- 
graphic plate of the primary triangulation carried on during the 
summer of 1877. by Mr. A. D. Wilson, Chief Topographer, has 
just been published by the U. S. Geological Survey, under the 
charge of Dr. F. V. Hayden. The area covered by these triangles 
extends from Fort Steele in Wyoming territory, westward to Og- 
den in Utah territory, a distance of about 260 miles, and north 
1 Geology of Wisconsin. Survey of 1873-1877, Vol. II., accompanied by an Ato 
as of Maps. Madison, 1877. 8° pp. 768. 
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