IV 



Page 

 Mitchell, J., Capt. ;— Additions to the knowledge of Silk, ... 169 

 Stoliczka, F., Ph. D. ;— Ornithological Observations in the 



Sutlej valley, N. W. Himalaya, 1 



Surveyor-General; Abstract of hourly meteorological observa- 

 tions taken at his office, Calcutta, from September, 1866 to 

 July, 1868. 



LIST OF ILLUSTRATIONS. 



Plates 1 — 4. Figures of species of Diplommatina (see pp. 77 — 84) 

 Plate 5. Map of a part of Bhootan, (see p. 117). 



ERRATA. 



Page 3, line 5, from bottom for rnoena read meena. 

 19^ 8, „ „ for Cryle read Ceryle. 



40 & 41 for Patrincola read passim Pratincola. 

 69 line 2, from bottom for leucopthalma, read leucophthahna. 



for stagnalis read stagnatilis. 



for whieh read which. 



for arrows read arrow. 



for exceptinal read exceptional. 



for ( . ) after the word grades read ( ; ). 



for P before the word leucoroides read S. 



for P. „ „ ,, leucomela read 8. 

 bottom for Leucocera read Leucocerca. 



for Graculus read Graucalus. 



for Arachnechthra read Arachnothera. 



In the " Table of the mean monthly readings and mean hourly variation of 

 the Barometer, in the Surveyor- General's Office, Calcutta, for the ten years, 

 1856—1865," 



9 p.m.") r— -004 "J /■+ -004 



i w ; -J 10 p. m. y for }— -008 C read ) + -008 



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