CONTENTS 



JPage 



X. — On the Effects produced by Small Quantities of Bismuth, on the 

 Ductility of Silver. — By Surgeon-Major J. Scully, Assay 

 Master, Calcutta ... ... ... ... 121 



XI. — On Monge' s Differential Equation to all Conies. — By Asutosh 

 MuKHOPADHYAT, M. A., F. R. A. S., F. R. S. E. Communis 

 cated hy The Hon'ble Mahendralal Sircar, M. D., 0. I. E. 134 



XII. — Notes on Indian Rhynchota, Heteroptera, No. 2. — JBy E. T. 



Atkinson, B. A., President ... ... ... 145 



XIII. — Natural History Notes from H. M.^s Indian Marine Survey 

 Steamer ' Investigator,' Commander Alfred Carpenter, R. N,, 

 Commanding. No. 4. Description of a new species of Crus- 

 tacea belonging to the Brachyurous Family Raniuidas. — By J. 

 Wood-Mason, Esq. Superintendent of the Indian Museum, 

 and Professor of Comparative Anatomy and Zoology in the 

 Medical College of Bengal, Calcutta. (With PI. I.) ... 206 



XIV. — Natural History Notes from H. M.'s Indian Marine Survey 

 Steamer ' Investigator,' CowmancZer Alfred Carpenter, R. N., 

 Commanding. No. 5. On some Nodular Stones obtained by 

 trawling off Colombo in 675 Fathoms of Water. — By E. J. 

 Jones, A. R. S. M., Geological Survey of India. (With 

 PI. 11.) ... ... ... ... ... 209 



XV. — Natural History Notes from H. M.'s Indian Marine Survey 

 Steamer * Investigator,' Commander Alfred Carpenter, R. N"., 

 Commanding. No. 6. On Six new Amphipods from the Bay 

 of Bengal.— By G. M. Giles, M. B., F. R. C. S., Surgeon- 

 Naturalist to the Marine Survey. (With Pis. III.— VIII.) ... 212 



XVI. — Natural History Notes from H. M.'s Indian Marine Survey 

 Steamer ' Investigator,' Commander Alfred Carpenter, R. N., 

 Commanding. No. 8. The Mean Temp&raturti of the Deep 

 Waters of the Bay of Bengal. By Commander Carpenter, 

 rTn., D. S. 0., F. R. Met. Soc, F. Z. B. —Communicated by 

 The Superintendent of the Indian Museum. (With Pi. X ) 230 



Plate X. will be issued with the next Number. 



