INDEX. 
Solutions of Soluble Chlorine. 
Lawton Goopwin, B.Sce., 597. 
Solution, The Nature of. By Wiuturam Lawron 
Goopwin, B.Sc., 597. 
Spectra. Gaseous Spectra in Vacuum Tubes, under 
small Dispersion and at low Electric Tempera- 
ture. See SmyrH (Prazzi), F.R.S.E., and 
Astronomer-Royal for Scotland, 93. 
— Magnificent Features exhibited by End-on 
Views of Gaseous Spectra under High Disper- 
sion. By Professor ALEXANDER S, HERSCHEL, 
M.A., 150, 
—— On the Constitution of the Lines forming the 
Low-Temperature Spectrum of Oxygen, and on 
the Oxygen of the Earth’s Atmosphere in the 
Telluric Solar Spectrum, By Priazzt Smytu, 
F.R.S.E., Astronomer-Royal for Scotland, 419, 
423, 
Sphenopteridew, 535, 541, 546. 
Spracusz (Tuomas Bonp), M.A., F.R.S.E On the 
nature of the Curves whose Intersections gives 
Imaginary Roots of an Algebraic Equation, 467. 
Staphylopteris, 539, 546. 
Stigmaria ficoides, 544. 
Strepsodus, 18. 
Sturmians, A special class of Sturmians, 
fessor Corystat, F.R.S.E., 161. 
Strain. Its effect on Electric Conductivity. 
Aveust Witkowsk], 413. 
By Witt1aM 
By Pro- 
By 
679 
T 
Tair (Professor), Sec. R.S.E., on Mirage, 551. 
Tarrasius, 61. 
Tetrabenzyl-Phosphonium, 191. 
Thallophyta (Fossil), 531. 
Titanium, Ores of (Mineralogy of Scotland). 
Professor Heppu, F.R.S.E., 427. 
Traquair (Ramsay H.), M.D., F.R.S.E, Report on 
Fossil Fishes collected by the Geological Survey 
of Scotland in Eskdale and Liddesdale. Part I. 
Ganoidei, 15-71. See Ganoidei Fossil Fishes, 
TraquaiR (Ramsay H.), M.D., F.R.S.E. On the 
Crannial Osteology of Rhizodopsis, 167. 
Tribenzyl-Phosphine, 203, 211, 
T'riethyl-Phosphine, 301, 321. 
Triethyl-Phosphorus-Betaine, 304, 
Turgite (Mineralogy of Scotland). 
Heppie, F.R.S,E., 462. 
By 
By Professor 
Vv 
Volkmannia, 542. 
W 
Wardichthys Cyclosoma, 55, 
Wires. The effect of Permanent Elongation on the 
Specific Resistance of Metallic Wires, By 
THomas Gray, B.Se., 369. 
Witkowski (Aveust). Effects of Strain on Electric 
Conductivity, 413. 
98 JUN 1887 
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