770 
Index. 
Dudgeon (Patrick) on a New Fossil 
Foot- print from Permian Sandstone, 
154. 
exhibits Specimen of Auri- 
ferous Quartz, 333. 
Dundas (Sir David), Obituary Notice 
of, by Sir Alex. Grant, 508. 
Duns (Professor) on the Ruff ( Machetes 
pugnaz), 272. 
on an Unnamed Palaeozoic 
Annelid, 352. 
Durham (William) on Suspension, 
Solution, and Chemical Combina- 
tions, 537. 
Earthquake Shocks in Argyleshire in 
1877, by D. Stevenson, 403. 
Ehrenberg (Christian Gottfried), Obit- 
uary Notice of, 230. 
Eisenstein’s Continued Fraction, by 
Thomas Muir, 359. 
Elasticity. On the Connection be- 
tween Cohesion, Elasticity, Dilata- 
tion, and Temperature, by Prof. 
George Forbes, 141. 
Electric Conductivity of Bars, by 
Prof. Tait, 718. 
• of Nickel, by C. Michie Smith 
and J. Gordon MacGregor, 
of Stretched Silver Wires, by 
J. G. MacGregor, M.A., 79. 
Electric Current, On the Passage of 
the, from Amalgamated Zinc Sul- 
phate Solution, by J.G. MacGregor, 
170. 
Electric Currents produced by Con- 
tact of Wires, 333. 
On the Splitting up of Electric 
Currents, as detected by the Tele- 
phone, 707. 
Electricity, Disruptive Discharge of, 
563. 
Electrolytic Conduction, by Prof. 
Tait, 614. 
Electrostatic Attraction, On Some 
Effects of Heat on, by Professor 
Tait, 302. 
Equations, Linear Differential, of 
Second Order, by Professor Tait, 
93, 118. 
Equation V p<pp = 0, by Gustav Plarr, 
237. 
• Least Roots of, by J. D. 
Hamilton Dickson, 393 
Ethylene, Action of Chlorides of 
Iodine upon, 588. 
Ewing (Mr J. A.), Remarks on the 
Phonograph, 579. 
Ewing (Mr J. A.) on the Wave 
Forms of Articulate Sounds, 582 
714. 
on the Wave Sounds pro- 
duced by the Apparatus exhibited 
by Professor Crum Brown, 723. 
Faraday (Professor), Rotation of Plane 
of Polarization of Light, 85, 118 
Ferguson (Dr R. M.), Note on a White 
Sunbow, 548. 
on Indications of Molecular 
Action in the Telephone, 615. 
Fire-Damp, On a Method of Detecting, 
613. 
Fishes, New and Little-Known Fossil, 
from the Edinburgh District, by Dr 
R. H. Traquair, No. 1, 262; No. 2, 
275 ; No. 3, 394, 427. 
Footprint, On a New Fossil, from 
Permian Sandstone, by Patrick 
Dudgeon, 154. 
Forbes (Professor George) on Diag- 
magnetic Rotation, 85. 
on the Connection between 
Cohesion, Elasticity, Dilatation, and 
Temperature, 141. 
Physical Observations in 
Northern Asia, 161. 
on the Theory of the Tele- 
phone, 555. 
Preliminary Note on a Method 
of Detecting Fire-Damp in Coal 
Mines, 613. 
Fossil Fishes. See Fishes. 
Fractions.— Transformation of Infinite 
Series into Continued Fractions, by 
Thomas Muir, M.A., 117. 
Tabulation of all Fractions 
whose Values are between two pre- 
scribed limits, by E. Sang, 536. 
French Horn, Mouthpiece for Produc- 
ing Chords from, 536. 
Fungus Disease affecting Salmon, by 
A. B. Stirling, 726. 
Galvanic Battery, On an Improved 
Form of, by J. Cook, 148. 
Garnets, by Professor Heddle, 550. 
Gas-Coke, Thermal Conductivity of, 
333. 
Gases, Vortex Theory of, Condensa- 
tion of Gases on Solids, and Con- 
tinuity between the Gaseous and 
Liquid State of Matter, by Sir 
William Thomson, 144. 
Gas-governor, On a New Form of, by 
William Dittmar, 147. 
