Ill 
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On some Transformations connecting General Determinants 
with Continuants. By Mr Thomas Muir, . .135 
Note on the preceding Paper. By Professor Chrystal, . 135 
Monday , 7 th March 1881. 
Introductory Address by the President, the Right Hon. 
Lord Moncreiff. (Continued from p. 2), . .136 
On the Intrinsic Muscles of the Mammalian Foot. By Dr 
D. J. Cunningham, . . . . .162 
On the Expansion of Rational Fractions, &c. By Mr A. H. 
Anglin, . . . . 162 
Algebra of Relationship. Part III. By A. Macfarlane, 
M.A., D.Sc., F.R.S.E., . . . .162 
Note on a Singular Problem in Kinetics. By Professor 
Tait, . . . . . . .173 
Monday , 21 st March 1881. 
The Earthquake of 28th November 1880 in Scotland and 
Ireland. By Charles Alexander Stevenson, B.Sc. 
Edin. Communicated by Professor Geikie (Plate I a), 176 
On the Classification of Statistics. Part I. By Mr P. Geddes, 187 
On Professor Cayley’s Theorem regarding a Bordered Skew 
Determinant. By Mr Thomas Muir, M.A., . .187 
> The Law of Extensible Minors in Determinants. By Mr 
Thomas Muir, M.A., . . . . .187 
Additional Note on a Problem of Arrangement. By Mr 
Thomas Muir, M.A., . . . . . .187 
On the Oxidation of Ferrous Salts. By Mr J. Y. Buchanan, 191 
On some Space-Loci. By Professor Tait, . . .197 
Monday , 4 th April 1881. 
On the Pressure-Errors of the “ Challenger ” Thermometers. 
By Professor Tait, . . . . .199 
The Action of Heat on Thioformanilid. By W. W. J. 
Nicol, M.A., ...... 199 
On the Classification of Statistics. Part II. By Mr P. 
Geddes, ...... 202 
Monday , 18 th April 1881. 
On Galvanic Polarisation. By Professor Helmholtz, . 202 
On the Average Pressure due to Impulse of Vortex Rings on 
a Solid. By Sir William Thomson, . . .204 
On the Crushing of Glass by Pressure. By Professor Tait, 204 
On the Cause of the Sounds produced in the Microphone 
Receiver. By Professor James Blyth, . . 206 
Monday , 2 d May 1881. 
On the Classification of Statistics. Part III. Results. 
By Mr Geddes, ... . . . 209 
On the Motion of a Storm in an Easterly Direction being 
only possible as a Circular Atmospheric Wave. By 
Robert Tennent, ..... 209 
On Chemical Nomenclature and Notation. By Professor 
Crum Brown, . . . . . .211 
