11 
PAGE 
Private Business — Alteration of Law XVII., and Addition to Law 
XV. — Letter from the Society to Dr Balfour on his resigning the 
office of General Secretary, and Dr Balfour’s Letter in reply, . 408 
Monday , 2d February 1880. 
On the Distribution of Temperature under the Ice in Frozen Lakes. 
By John Aitken, .*..... 409 
Remarks on the Aborigines of the Andaman Islands. By Surgeon 
E. S. Brander, M.B., C.M., H.M. Bengal Medical Staff, Second 
Medical Officer, Port Plair and Nicobars. Plate XV., . .415 
The Action of Sulphide of Potassium upon Chloroform. By W. W. 
J. Nicol, M.A. Communicated by Professor Crum Brown, . 425 
Note on the Elimination of Linear and Vector Functions. By Pro- 
fessor Tait, ........ 425 
Monday , 1 6th February 1880. 
On the Geology of the Rocky Mountains. By Professor Geikie, . 426 
On Comets. By Professor Forbes, ..... 426 
Note on the Velocity of Gaseous Particles at the Negative Pole of a 
t Tube. By Professor Tait, .... 430 
Monday , ls£ March 1880. 
-pressure Thermometers of Sulphurous Acid, Water, and 
iry. By Sir William Thomson, . . . . 432 
burous Acid Cryophorus. By Sir William Thomson, . 442 
i of a Columnar Vortex. By Sir William Thomson, . 443 
dure of the Comb-like Branchial Appendages and the 
If the Basking Shark ( Selache maxima). By Professor 
M.B., F.R.S., ... . . . . .457 
l y Report on the Tunicata of the “ Challenger ” Expedition. 
1. Herdman, B.Sc., Baxter Scholar in Natural Science in 
persity of Edinburgh, .... . 458 
implications of Rotatory Polarization. By Professor Tait, 473 
Monday , 15£/i March 1880. 
;raphy of Jerusalem. By Lieut. Claude Reignier Conder, 
. 474 
igy of the Faroe Islands. By James Geikie, LL.D., 
j. & E., . . . . . . .495 
ical Note by Mr Alexander Wallace. Communicated by 
• Piazzi Smyth, . . . . . 500 
ouring pf Maps. By Professor Tait, . . .501 
i 
Monday , 5th April 1880. 
icture and Origin of Coral Reefs and Islands. By John 
.505 
Monday , 19 th April 1880. 
tiering, as illustrated in Edinburgh Churchyards. By 
Geikie. Plate XVI., . . .. . .518 
For continuation of Contents , see pp. 3 and 4 of Cover , 
