CONTENTS. 
I.—On new species of the Genus Plectopylis of the Family Heli- 
cide.—By Lrnvz.-Con. Gopwin-AUSsTEN, F. RB. G. 8., F. Z. 8., 
&e., late Deputy Superintendent Topographical Survey of In- 
WAG, Ven s ones Naas et 
II.—On the Operations Ue eee ie Diatohee of the lifve en 
Rivers in Upper Assam, during Season 1877-78.—By Lixvr. 
H. J. Harman, B. £., in charge Assam Valley Series, Survey 
of India. Communicated by Masor-Genu. J. T. WALKER, 
R. E., C. B., F. B. 8., Surveyor General of India, .......... A 
Communicated by J. Woop-Masov,........... 37 
IV.—On the Diurnal Variation of Roinfall Frequchey * ‘Cal- 
cutta.—By Henry F. Buanrorp, F. G. 8.yF. Z. 8., F. M. 8., ... 4 
V.—Record of the Occurrence of Earthquakes in ‘Ase aay a 
1878.—Communicated by the Carer Commisstonur or Assam, 48 
VI.—On some experiments made at H. M.’s Mint in Oaleutta ¢ on 4 
coining silver into Rupees—By Cou. J. F. TENNANT, R. E., 4 
FR. 8., &e., Master oS Mth) vos vor invousvee iat Naat oeg ed ae ae 
Just Published. 
_ HISTORY OF THE BIRDS OF CEYLON. 
Parr I. 
By Caprarn W. V. LEGGE, RB A. F. L. 8. 
345 pages, Royal 4to., with 10 plates by Keulemans. To be compl 
ted in two more parts, price £2 each. In this work the geographical rang 
habits and nidification of each species is fully worked out. . 
Intending subscribers should communicate with the author, wh ho 
address is Aberystwith, Wales, , 
| 
| 
| 
| 
| 
| 
| 
Ill. sr ranteed from Upper Tenasserim.—By W. U. Dearie: i 
| 
Pa) 
