List of Assays and Examinations made in the Laboratory, Geological Survey of India, during the months of May, June, and July 1891. Substance. For whom. Result. Pit No. 2, near burner's well. Pit No. 3-B in stream. Chalcopyrite and pyrite, from Pachiphani, 6 specimens of coke, from Raniganj, for assay P. N. Bose, Geological Survey of Contains 14'06 per cent. of copper (Cu). India. KILBURN & Co., Calcutta. Ditto Consists of iron pyrites in decomposed diorite containing smaller grains of pyrites and magnetite with plagioclase-felspar, quartz, epidote, chlorite, hornblende and acicular crystals of apatite. Calcite infests cracks in the rock and a highly refracting mineral occurs in granules (perhaps sphene). RAI ISHWARI PRASAD, Patna. A specimen of decomposed gneiss for sul- BARRY & Co., Calcutta. phur. 4 specimens of coal, from the Pench River, The Chief Commissioner, Public Chindwara, for assay. Moisture Volatile matter Works Department, Central Provinces. List of Assays and Examinations made in the Laboratory, Geological Survey of India, during the months of May, June, and July 1891-contd. Substance. For whom. Result. 2 specimens of coal, from Upper Burma, for assay. Mineral from boring (depth 154) near Police Thana, Quetta Cantonments, for determination. GISBORNE & Co., Calcutta. R. D. OLDHAM, Geological Survey Chalybite and pyrites with carbonaceous matter. of India. 2 specimens of minerals from range of hills CHAS. PURDY. running E. and W. 2 miles S. of Mowkalian 2 specimens of minerals for determination pur, near Behar. C. MACDOUGAL CLARK. A specimen of quartz, for gold WOMESH CHUNDER BOSE, Calcutta. BARRY & Co., Calcutta. Amethystine and smoky quartz, with mica R. B. FOUTE, Geological Survey Contains no gold. and pyrite, for gold. of India. A specimen of coal from the Nengbrang, P. N. DATTA, Geological Survey Assam, for assay. of India. Commissioner, Contains no gold. 2 specimens of quartz, from Sonapet, for HEILGERS & Co., Calcutta. gold. Quartz, with decomposed mica-schist and The Financial earth, from Upper Burma, for gold. Several specimens of minerals and rocks from the Bhagulpore district, for deter Burma. F. BRAIDWOOD, Calcutta. mination. Notification by the Government of India during the months of May, June, and July 1891, published in the "Gazette of India," Part I.-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 insignis2. 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 (1870). B |