11 
Observations on some Nemerteans from Singapore. By R. C. Pnnnett, 
B.A. Communicated by Dr A. T. Masterman, .... 
The Theory of Alternants in the Historical Order of its Development up 
to 1841. By Thomas Muir, LL.D., . . . . 
On Jacobi’s Expansion for the Difference-Product when the Number 
of Elements is even. By Thomas Muir, LL.D., 
On certain Aggregates of Determinant Minors. By Thomas Muir, LL.D., 
Note on the Activity of the Saliva in Diseased Conditions of the Body. 
By W. G. Aitchison Robertson, M.D., D.Sc., F.R.C.P.E., 
On Tetrabothrium torulosum and Tetrabothrium auriculatum. By Dr 0. 
von Linstow, Gottingen. Communicated by Sir John Murray, K.C.B., 
Contributions to the Craniology of the People of India. Part II. — The 
Aborigines of Chuta Nagpur, of the Central Provinces and the People 
of Orissa. (Abstract.) By Professor Sir William Turner, F.R.S., 
The Action of Silver Salts on Solution of Ammonium, Persulphate. By 
Hugh Marshall, D.Sc. (With a Plate), . . . . . 
Hyperbolic Quaternions. By Alexander Macfarlane, Lehigh University, 
South Bethlehem, Pennsylvania. (With a Plate), 
The Theory of Skew Determinants and Pfaflians in the Historical Order 
of its Development up to 1857. By Thomas Muir, LL.D., 
On the Motion produced in an Infinite Elastic Solid by the Motion 
through the Space occupied by it of a body acting on it only by 
Attraction or Repulsion. By Lord Kelvin, .... 
The Total Solar Eclipse of 28th May 1900. By Thomas Heath, B.A., . 
A Peculiar Set of Linear Equations. By Thomas Muir, LL.D., . 
Note on Dr Muir’s Paper on a Peculiar Set of Linear Equations. By 
Charles Tweedie, M.A., B.Sc., . . . • 
Note or Pairs of Consecutive Integers the Sum of whose Squares is an 
Integral Square. By Thomas Muir, LL.D., 
The .Seaweed Ulva latissimi , and its relation to the Pollution of Sea 
Water by Sewage. By Professor Letts and John Hawthorne, B.A., 
Queen’s College, Belfast. (With Three Plates), . 
Solar Radiation and Earth Temperatures. By Professor C. G. Knott. 
(With a Plate), ...••••• 
Change of the Coefficient of Absorption of a Gas in a Liquid with 
Temperature. By Professor Kuenen. (With a Plate), 
Simple Proof of Gibbs’ Phase-rule. By Professor Kuenen, 
The Biology of the Genus Pissodes. (George Heriot Research Fellow- 
ship Thesis.) By R. Stewart MacDougall, M.A., D.Sc. 
cated ly Professor Cossar Ewart, .... 
The Biology and Forest Importance of Scolytus (Eccoptog aster) multi- 
striatm (Marsh). By R. Stewart MacDougall, M.A., D.Sc. 
municgted by Professor Cossar Ewart, . 
Communi- 
Gom- 
PAGE 
91 
93 
133 
142 
155 
158 
161 
163 
169 
181 
218 
236 
248 
261 
264 
268 
296 
312 
317 
319 
359 
