FIG. 2.-Pyrite (P) replaced by sphalerite (S), in turn veined by chalcopyrite (C) and galena (G). P. S. 278. X 54. FIG. 3.-Veins of galena and bismuthinite (white) in wolfram. P. S. 267. X 54. FIG. 4.-Ex-solution droplets of bismuth in bismuthinite. P. S. 277. Dipterocarpoxylon garænse, sp. nov., G. S. I. Type No. 16502. PLATE 15.-FIG. 1.-Transverse section showing distribution of vessel, rays and vertical gum ducts. Note the arrangement of gum ducts at the right hand corner (Gd). × 10. FIG. 2.--Transverse section showing distribution of small (Sv) and large vessels in comparison with that of gum ducts (Gd). × 40. FIG. 3.-Transverse section showing parenchyma and tracheids round the vessels. Note also the distribution of metatracheal parenchyma cells. X 75. FIG. 4.--Transverse section showing a pair of gum ducts surrounded by rows of parenchyma cells. X 35. FIG. 5.-Tangential section showing distribution, width and height of rays. Note also the size and shape of the cells forming different types of rays. X 50. FIG. 6. Tangential section showing tyloses in the vessels. X 110. Dipterocaropxylon garænse, sp. nov., G. S. I. Type No. 16502. PLATE 16.—FIG. 1.-A vessel element showing inter-vessel pits. X 90. FIG. 2.--Radial section showing inter-vessel pits (Ivp) and fungal hypha (H). X 440. FIG. 3.-Radial section showing vessel-ray pits (Vrp). Note their distribution and size. X 440. Dryoxylon sp., G. S. I. No. K40/485. FIG. 4.-Transverse section showing general structure of the wood. X 10. FIG. 5.--Tangential section showing size and distribution of rays. X75. FIG. 6. Transverse section showing distribution and arrangement of wood fibres. X 35. FIG. 4.-A Labyrinthid scale (K32/147) allied to Polyacanthus C. V. FIG. 5.-An impression of a Serranid scale (K29/629). × 3. X 3. Inter-trappean Fish Remains. PLATE 18.--FIG. 1.-Fish roe (K1/319) from the Inter-trappean of Takli. X 4. FIG. 2.-Ganoid scale (K1/316), probably of Lepidosteus, from the X 4. FIG. 3.--Another Ganoid scale from Paharsingha. X 5. X 20. FIG. 7.-A Nandid scale (K1/318) from the Inter-trappean of Pahar- FIG. 8.-Scale of Clupea sp. (G 152) from the infra-trappean at FIG. 9.-Impression of a scale of Clupea sp. (G 152) from the infra- X 3. FIG. 10.-Scale of Clupea sp. (K1/317) from the infra-trappean of PLATE 19.-FIG. 1.-Intergrowth of bismuthinite and galena. Crossed nicols. FIG. 2.-Bismutosphærite (dark grey) and cerussite (light grey). PLATE 20-FIG. 1.-Slightly crushed charnockite. Note the linear arrangement of the various minerals. FIG. 2. The centre shows one of the felspathic patches in Fig. 1 under crossed nicols. The granulation and disconti nuity of the twinning planes is due to crushing and move ment. FIG. 3.-Charnockite similar to that shown in Fig. 1, but more intensely crushed. Most of the hypersthene is altered to a feathery aggregate of scaly hornblende. FIG. 4.-Completely crushed charnockite, consisting of narrow bands of hornblende (dark), felspar, etc. (light) and garnet (G). A few crystals of hypersthene (H) always seem to have survived the crushing. PLATE 21.—FIG. 1.-Typical hypersthene-gneiss. FIG. 2. Typical soda-granite. FIG. 3.-Biotite-gneiss with porphyritic crystals of orthoclase (Or). PLATE 22.-FIG. 1.-Myrmekite corroding microcline. FIG. 2.---Dactylites of biotite and a myriackitic intergrowth of biotite and albite. FIG. 3.-Dolerite with margins of augite crystals uralitized and in some cases altered to garnet. FIG. 4.-Pyroxenite with allanite. PLATE 23. Variation diagram of the charnockite series. PLATE 24.-Geological map of a part of Southern Jeypore, Orissa. Seismograms of the Baluchistan (Quetta) Earthquake of May 31, 1935. PLATE 25.-FIG. 1.-Bombay (Milne-Shaw), N.-S. Component. FIG. 2. PLATE 26.-Agra (Omori), N.-S. Component. PLATE 27.-Calcutta (Omori). E.-W. Component. PLATE 28.-Kew, N.-S., E.-W. and Z Components. MGIPC-M-VIII-1-17—15-8 39 --800, |