INDEX. 
Genus Megalichthys 
Genus Ccelacanthus, 
Genus Rhadi- 
Archichthys, 18. 
(Saurodepteride), 20. 
20. Genus Elonichthys, 22. 
nichthys, 25. Genus Cycloptychius, 37. 
Phanerosteon, gen. nov., 39.  Holurus, gen. 
nov., 43, 66. Canobius, gen. nov., 46, 68. 
Wardichthys, 55. Cheiro- 
Platysomus, 58. Tar- 
Eurynotus, 54. 
dopsis, gen. nov., 56. 
rarius, gen. nov., 61. 
Gaseous Spectra. See Spectra. 
GeEpprs (Patrick), F.R.S.E., and Bepparp (FRANK), 
FE.R.S.E. On the Histology of the Pedicellariz 
and the Muscles of Echinus sphera (FORBES), 
383. 
Geixiz (James), LL.D., F.R.S.L. and E. On the 
Geology of the Feroe Islands, 217. See 
Feroe Islands. 
Glyptoscorpius, 516. 
Goopwin (Wit14m Lawton), B.Sc. On the Nature 
of Solution. Part I—On the Solubility of 
Chlorine in Water and in Aqueous Solutions 
of Soluble Chlorides, 597. 
Gothite (Mineralogy of Scotland). 
Hepptie, F.R.S.E., 462. 
Gray (THomas), B.Sc. The Effect of Permanent 
Elongation on the Specific Resistance of 
Metallic Wires, 369. 
H 
HeEpDLE (Professor), F.R.S.E. Chapters on the 
Mineralogy of Scotland. Chap. VII.—Ores of 
Manganese, Iron, Chromium, and Titanium, 427. 
Henperson (G. G.), B.Se., and J. J. Dossin, D.Se. 
On a Red Resin from Draceena Cinnabarri, 624. 
Herscuet (Professor Anex. §.). Magnificent 
Features exhibited by End-on Views of Gas- 
Spectra under High Dispersion, 150. 
Holurus, 48, 66. 
By Professor 
I 
Ilmenite, 438. 
Imaginary Roots. Nature of the Curves whose 
Intersections give the Imaginary Roots of 
an Algebraic Equation. By Tuomas Bonp 
Sprague, F.R.S.E., 467. 
Tron, Ores of (Mineralogy of Scotland). 
fessor Hrppiz, F.R.S.E., 435, 437. 
Iron Sand, 446. 
Tserine, 446. 
By Pro- 
K 
Kipston (Rozert). Report on Fossil Plants, col- 
lected by the Geological Survey in Eskdale and 
Liddesdale, 531. 
VOL, XXX. PART IV. 
677 
Knorr (Carat G.), D.Sc. Researches iu Contact 
Electricity, 271. 
L 
Lepidodendron (Fossil), 543, 548. 
Lepidophyllum (Fossil), 544, 548. 
Lepidostrobus, 543, 548. 
Letts (Professor), F.R.S.E., and Mr N. Cotuin. 
On the Action of Phosphide of Sodium on 
Haloid Ethers and on the Salts of Tetrabenzyl- 
Phosphonium, 181. 
Lerrs (Professor), F.R.S.E. On Phosphorus 
Betaines, 285. See Phosphorus-Betaines. 
Liddesdale and Eskdale, Fossil Fishes of, collected 
by the Geological Survey of Scotland. See 
Lossil Fishes. 
, Fossil Plants of. See Fossil Plants. 
Lycopodiaceee (Fossil), 543, 548. 
M 
Macrartane (J. M.). Observations on Vegetable 
and Animal Cells; their Structure, Division, 
and History, 585. 
Magnetite, 452. Chromiferous Magnetites (Miner- 
alogy of Scotland). By Professor HEppDLE, 
F.R.S.E., 456. 
Manganese, Ores of (Mineralogy of Scotland). 
Professor Huppin, F.R.S.E., 427. 
Martite (Mineralogy of Scotland). By Professor 
Hepvte, F.R.S.E., 437. 
Mazonia Woodiana, of Munk and WortuHen, 408. 
Megalichthys, 20. 
Merosomata, 516. 
By 
Mimaster. A new Genus of Asteroidea from the 
Feroe Channel. By W. Percy Swapen, 
579. 
Mineralogy of Scotland. Chap. VII.—Ores of 
Manganese, Iron, Chromium, and Titanium. 
By Professor Heppie, F.R.S.E., 427. 
Minors (Extensible) in Determinants, The Law of. 
By Tuomas Moir, F.R.S.E., 1, 2. 
Mirage. By Professor Tart, 551. 
Morir (THomas), F.R.S.E. The Law of Extensible 
Minors in Determinants, 1. The Law of 
Complementaries in Determinants, 1, 2. On 
some Transformations connecting General 
Determinants with Continuants, 5. 
N 
Neuropteridece, 541. 
Nucleolus of Vegetable Cell, 599. 
Nucleus of Vegetable Cell, 590. 
5 @ 
