Index. 
773 
Macdonald (Professor William), Obit- 
uary Notice of, 22. 
Macfarlane (Alex.), Potentials required 
for Sparks of a Holtz Machine, 170, 
332. 
on Thermal Conductivity of 
Gas-Coke, 333. 
on Currents produced by Con- 
tact of Wires, 333. 
on the Disruptive Discharge 
of Electricity, 563. 721. 
on the Discharge of Electricity 
through Turpentine, 579. 
M‘Gowan (George), Action of Chlo- 
rides of Iodine upon Acetylene and 
Ethylene, 688. 
MacGregor (J. Gordon) on the Electric 
Conductivity of Nickel, 120. 
on the Thermo-Electric Pro- 
perties of Cobalt, &c., 170, 421. 
on the Passage of the Electric 
Current from Amalgamated Zinc 
Sulphate Solution, 170. 
— - — — on the Thermo-Electric Pro- 
perties of Charcoal, 579. 
Machetes pugnax , by Professor Duns, 
272. 
Machinery, Graphic Methods of Deter- 
mination of Efficiency of, by Prof. 
F. Jenkin, 381. 
MTntosh (Dr W. C.) on the Structure 
of the Body- Wall in the Spionidae, 
123. 
on Arrangement of Great 
Nerve Cords in the Marine Anne- 
lids, 372. 
M'Kendrick (Professor), Some Experi- 
ments with the Telephone, 558. 
On a Method of Studying the 
Binocular Vision of Colour, 654. 
Mackenzie (Donald, Lord), Obituary 
Notice of, 23. 
Madeira, On Dredging in, by Rev. R. 
B. Watson, 153. 
Madvig (Professor J. N.) elected an 
Honorary Fellow, 536. 
Magnetic Needle, On Decennial 
Period in Oscillation and Disturb- 
ance of, by J. A. Broun, 155. 
Magnetism. — On a Possible Influence 
of Magnetism on the Absorption of 
Light, by Professor Tait, 118. 
Magnetometer (Bifilar), 402. 
Makdougall-Brisbane Prize presented 
to Alex. Buchan, M.A., 319. 
Marsden (R. Sydney) on Pure 
Graphitoid and Adamantine Boron, 
721. 
Masson (Prof.) contributes Obituary 
Notice of John Lothrop Motley, 508. 
Max Muller (Professor) on Origin of 
Language, 98. 
Microphone. — An account of some Ex- 
periments on the Telephone and 
Microphone, by James Blyth, M.A., 
711. 
Note on a Variation of the, by 
R. M. Morrison, D.Sc., 712. 
Mineralogy of Scotland, by Professor 
Heddle — Chap. I., Rhombohedral 
Carbonates, 144 ; Chap. II., Ortho- 
ciase, Oligoclase, &c., 393; Chap. 
III., the Garnets, 550 ; Chap. IV., 
Augite, Hornblende, and Serpen- 
tinous Change, 595. 
Molecular Action in the Telephone, 
by Dr R. M. Ferguson, 615. 
Monamines. — On a new General 
Method of Preparing the Primary 
Monamines, by R. Milner Morrison, 
D.Sc., 721. 
Monodon Monoceros , On the Placen- 
tation of, by Professor Turner, 103. 
Morrison (Dr R. M ), Note on a Vari- 
ation of the Microphone, 712. 
on a new General Method of 
Preparing the Primary Monamines, 
721. 
on Pure Graphitoid and Ada- 
mantine Boron, 721. 
Motion. — Extended definition of 
“ Steady ” Motion, 59. 
On Two-Dimensional Approxi- 
mately Circular Motion of a Liquid, 
by Sir William Thomson, 98. 
Motions, On Parallel, by Rev. John 
Wilson, M.A., 161. 
Motivity, On Thermo-Dynamic, by Sir 
William Thomson, 144. 
Motley (John Lothrop) elected an 
Honorary Fellow, 43. 
Obituary Notice of, by Profes- 
sor Masson, 508. 
Muir (Thomas), Transformation of 
Infinite Series into Continued 
Fractions, 117. 
on Eisenstein’s Continued 
Fraction, 359. 
on an Infinitude of Opera- 
tions, 359. 
on Determinant Expressions 
for Sum of a Harmonical Progres- 
sion, 361. 
on Professor Tait’s Problem 
of Arrangement, 382, 402. 
Multiple Proportions, 536, 
