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List of Assay's and Examinutions made in the Laboratory, Geological Survey of India, during the months of
May, June, and July 1891.
Chalcopyrite and pyrite, from Pachiphani, P. N. Bose, Geological Survey of Contains 14'06 per cent. of copper (Cu).
dent, Western Rajputana States. grains of pyrites and magnetite with plagioclase-felsrar, quartz,
epidote, chlorite, hornblende and acicular crystals of apatite. Calcite
granules (perhaps sphene).
. Rai Ishwari PRASAD, Patna.
Pit No. 2, near
Works Department, Central
46'22 Ash . . . II'24
List of Assaj's and Exminations maile in the Laboratory, Geological Survey of India, during the months of
May, June, and July 1891-contd.
2 specimens of coal, from Upper Burma, for Gisborne & Co., Calcutta.
Thana, Quetta Cantonments, for deter-1 of India.
running E. and W. 2 miles S. of Mowkalian
pur, near Behar. 2 specimens of minerals for determination | C. MacDoUGAL CLARK. ditto ditto
G. B. REYNOLDS, Warora. 2 ditto
.E. C. WHITEHEAD.
. . Womesh CHUNDER Bose, Calcutta.
BARRY & Co., Calcutta.
A specimen of coal from the Nengbrang, P. N. Datta, Geological Survey
gold. 2 specimens of qnartz, from Sonapet, for Heilgers & Co., Calcutta.
Quartz, with decomposed mica-schist and The Financial Commissioner, Contains no gold.
earth, from Upper Burma, for gold. Several specimens of minerals and rocks F. BraidwOOD, Calcutta.
from the Bhagulpore district, for determination.
Notification by the Government of India during the months of May, June,
and July 1891, published in the “Gazette of India," Part 1.-Leave.
Annual Increments to Graded Officers sanctioned by the Government of
india during May, June, and July 1891.
On a Collection of Mammalian Bones from Mongolia, by R. LYDEKKER
B.A., F.G.S., &c.
• The evidence of the existence of a Pliocene mammalian fauna in Western China, closely allied to the Siwalik fauna of India, has been gradually accumulating since 1870, when Sir R. Owen communicated a memoir to the Geological Society's Journal' on this subject. Most of the specimens described in that memoir were obtained from caverns in the province of Szechuen, although one came from marly beds on the eastern coast near Shanghai. All were referred by their describer to new species, but the present writer subsequently came to the conclusion that the two elephant teeth in the collection belonged to Siwalik species. Still later the cast of an elephant's tooth, the original of which was obtained from strata on the Upper Whangho in Kansu, was submitted to myself, and identified with the Siwalik Elephas in. signis?. Other Siwalik species were subsequently identified from China by the aid of specimens in the British Museum during the compilation of the “Catalogue of Fossil Mammalia,” most of which appear to have been derived from deposits other than those of caverns. The most important addition to our knowledge of Chinese fossil mammals was, however, made by Prof. Ernst Koken 3, based upon specimens collected by Baron von Richthofen in the caves and loess' of Yunnan, and a few. from Shansi.
We have, therefore, evidence that the Chinese Pliocene mammalian fauna ranged from Yunnan in the south-west northwards through Szechuen to Kansu, and thence
"Quart. Journ. Geol. Soc., vol. xxvi, p. 417 (1890).