Index. 773 
Elliptic Space, 644 ; Geometry of Ellip- 
tic Space, 653, 657 ; Single and Double 
Elliptic Space, 654 ; Trigonometry of 
Elliptic Space, 660 ; Total Volume of 
Elliptic Space, 650, 662. 
Enteromorpha, Variation and Cell-Mul- 
tiplication in, by Dr Patrick Geddes, 
571. 
Equations. — A Graphical Solution of the 
Equation Vp<pp = Q, by Professor 
Tait, 402. 
See Simultaneous Equations, 
283. 
Equidistants, 648, 649, 657 ; the Equi- 
distant is a Self-Congruent Line, 
648. 
Ether, its Effects on Blood-Pressure, 
100 . 
Ethidene Dichloride, its Effects on Blood- 
Pressure, 100. 
Ethylmethylethyl-sulphine, 254. 
Euclidean Space, 644. 
Expansion of Cast-Iron while Solidify- 
ing, by J. B. Hannay and Robert 
Anderson, 359. 
Faroe Islands, their Geology, \by Dr 
James Geikie, 495 ; their Glaciation, 
499. 
Fellows, Honorary, Session 1878-79, 3 ; 
Session 1879-80, 320. 
— Ordinary, Session 1878-79, 4 ; 
Session 1879-80, 321. 
Ferguson (Dr R. M), Note on the Wire 
Microphone, 700. 
Ferrocyanide of Trimethyl-sulphine, 
253. 
Firearms, the Bursting of, when the 
Muzzle is closed by Snow, Earth, 
Grease, &c., by Professor George 
Forbes, 254. 
Firth of Forth, Carboniferous Volcanic 
Rocks of, 65, 232. 
Fleming (Dr J. G.), Obituary Notice of, 
346. 
Foraminifera of “ Challenger ” Expedi- 
tion, 508. 
Forbes (Professor George), on the Burst- 
ing of Firearms when the Muzzle is 
closed by Snow, Earth, Grease, &c., 
254. 
Forbes (Professor George) on an Instru- 
ment for Detecting Coal Gas in Mines, 
365. 
on Comets, 426 ; his Researches 
on Comets lead him to believe in the 
Existence of Two Planets external to 
Neptune, 426. 
on an Ultra-Neptunian Planet, 
Forbes (Principal James David), Inci- 
dental Notice of, 34. 
Formiate of Potassium, 425. 
Forth, Carboniferous Volcanic Rocks in 
the Basin of the Firth of Forth, by 
Professor Geikie, 65, 232. 
Fossil Fishes, collected in Roxburgh- 
shire and Dumfriesshire, by Dr Tra- 
quair, 710. 
Fragmental Rocks of Firth of Forth, 66. 
Fraser (Professor Thomas R.). — The 
Pituri Poison of South Australia, 
200 . 
Fries (Elias Magnus), Obituary Notice 
of, 10. 
Frozen Lakes, Distribution of Tempera- 
ture in, by John Aitken, 409. 
Fungus Disease affecting Salmon and 
other Fish, by A. B. Stirling, 232, 
370. 
Garefowl (Geierfugl), 679. See Auk 
(Great). 
Gaseous Particles, their "V elocity at the 
Negative Pole of a Vacuum Tube, by 
Professor Tait, 430. 
Gas Thermometer, 539. 
Geddes (Professor), his Theory of the 
“ Iliad,” 103. 
Geddes (Patrick) on the Phenomena of 
Variation and Cell-Multiplication in a 
Species of Enteromorpha, 571. 
Geikie (Professor Archibald), Carboni- 
ferous Volcanic Rocks in the Basin of 
the Firth of Forth, 65. 
Notes on the Striae and Boulders 
of the Pentlands, 191. 
on the Carboniferous Volcanic 
Rocks of the Basin of the Firth of 
Forth (second paper), 232. 
on the Geology of the Rocky 
Mountains, 426. 
on Rock-Weathering, as illus- 
trated in Edinburgh Churchyards, 
518. See Rock-Weathering. 
contributes Obituary Notice of 
Professor James Nicol, 352. 
Geikie (Dr James), The Geology of the 
Faroe Islands, 495. 
Geology of the Faroe Islands, by Dr 
James Geikie, 495. 
Geometry (Non-Euclidean), by Professor 
Chrystal. See also Pangeometry. 
of Elliptic Space, 653. 
Gibson (Dr J. ) on the Composition of 
Reh, an Efflorescence on the Soil of 
certain Districts in India, 277. 
and Morrison (Dr R. M.) on 
Peroxides of Zinc, Cadmium, Mag- 
nesium, and Aluminium, 706. 
636 . 
