shire, 602; Roxburghshire (Rubers- law, Nesbit), 602; Selkirkshire, 604; Perth and Stirling shires, 604; Land- rick, Keltie Bridge, Gartincaber, Cambus Burn, Cornton, Stirling, Glen- bernie, Dunmore, 605; Blair-Drum- mond, Coxit, 606. Boulders in Ayr- shire-at Poundland, Colmonell, Lendalfoot, 607. Boulders at south Shores of Moray Firth, 620; at Enzie and Rathven, 623. Boulders in Nairn, Moray, Banffshire, 624. Boulder Committee reappointed, 635. Branchial Appendages and Teeth of the Basking Shark (Selache maxima), by Professor Turner.
Brander (E. S., M. B.), Remarks on the Aborigines of the Andaman Islands, 415.
Brown (Professor Crum) and J. Adrian Blaikie on the Action of Heat on the Salts of Trimethyl-sulphine, No. III., 53; No. IV., 253.
and Dr J. Adrian Blaikie, Com- parison of the Salts of Diethylmethyl- sulphine and Ethylmethylethyl-sul- phine, 254.
Atomicity or Valence of Ele- mentary Atoms: Is it Constant or Invariable? 252.
Buchan (Alexander, M. A.) contributes Obituary Notices of Professor H. W. Dove, 356; and of Johann von Lamont, 358.
Buchanan (J. Y.), Note on the Distri- bution of Temperature under the Ice in Linlithgow Loch, 56, 68.
on Deep-Sea Thermometers,
on a Navigational Sounding Machine, 694.
on the Compressibility of Glass,
Buckland (Mr F.), his Theory as to Cause of Salmon Disease, 233. Bursting of Firearms, 254.
Calculus of Relationship, by Dr Alex- ander Macfarlane, 224. Calvary, its Position, 492-495. Campbell (Professor Lewis), Remarks on
Professor Geddes's Theory of the Iliad, 104.
Carbonate of Trimethyl-sulphine, 253. Carboniferous Volcanic Rocks of the Basin in the Firth of Forth, by Pro- fessor Geikie, 65, 232.
Celadonite, 77.
Ceratiocaris, 711.
on the Differential Telephone, and on the Application of the Tele- phone generally to Electrical Measure- ment, 685.
on the Wire Telephone, and its Applications to the Study of the Pro- perties of strongly Magnetic Metals, 707.
Church (Dr W. S.), Physician to St Bartholomew's Hospital, his Account of Fungus Disease affecting Salmon at Ightham House, in Kent, 372. Ciona, genus of Ascidiada ("Chal- lenger" Expedition), 459, 469. Ciona intestinalis, 717, 719, 720. Clavelina oblonga, 724; Clavelina enor- mis, 725.
Clavelinidæ, Clavelina borealis, Clave- lina lepadiformis, 716, 722. Clerk-Maxwell (Professor James), Obi- tuary Notice of, 331.
Coal-Gas in Mines, Instrument for De- tecting, by Professor George Forbes, 365. Coats (Dr Joseph), on the Effects of Chloroform, Ethidene Dichloride, and Ether on Blood-Pressure, 100. Colledge (Dr Thomas Richardson), Obituary Notice of, 339. Columnar Vortex, 443. Comb-like Branchial Appendages and the Teeth of the Basking Shark (Selache maxima), by Professor Turner, 457.
Chairman of the Council to have a Cast- Comets, by Professor Tait, 367.
Comets, by Professor George Forbes, | Defect of any Rectilineal Figure, 647; 426.
Compressibility of Glass, by J. Y. Buchanan, 697.
Conder (Lieut. Claude Reignier), Trigo- nometrical Survey of Palestine, 379. on the Topography of Jerusalem,
Contact Electricity, 362. Coral Reefs and Islands,-their Origin and Structure, by John Murray, 505; Darwin's Theory, 505; Professor Semper's Difficulties in Applying Darwin's Theory, 506; Nature of Oceanic Islands and Submarine Eleva- tions, 506; Pelagic Fauna and Flora of Tropical Regions, 507; Bathyme- trical Distribution of the Calcareous Shells and Skeletons of Surface Or- ganisms, 509; Coral Atolls, 510; Barrier Reefs, 513; Elevation and Subsidence, 515; Summary, 517. Corella, a genus of Ascidiada ("Chal lenger" Expedition), 459; Corella Japonica, n. sp., 472, 716, 718. ouncil for Session 1878-79, 1; for Session 1879-80, 315. Council of the Society-its Constitution, 408; the Council to have power to Regulate the Private Business of the Society, 408; Chairman of Council to have a Casting as well as a Delibera- tive Vote, 408.
Coxe (Sir James), Obituary Notice of, 15.
Craig (Sir William Gibson), Obituary Notice of, 24.
Croll (Mr), Notes on Striæ and Boulders of the Pentlands, 192.
Crustacea (New) from the Cementstone
Group of the Sandstone of Eskdale and Liddesdale, by B. N. Peach, 711. Cryophorus. On a Sulphurous Acid Cryophorus, by Sir William Thomson, 442.
Crystalline Compound formed in Water
containing Sulphuretted Hydrogen and Mercaptan, 87.
Crystalline Rocks of Firth of Forth, 66. Cunningham (James), W.S., Obituary Notice of, 13. Cynthiadæ, 458.
Dallas (W. Elmslie), Obituary Notice of, 340.
Darwin (Dr Charles).-His Theory of Origin of Coral Reefs, 505. Deep-Sea Thermometers, by J. Y. Buchanan, 77.
Defect of a Triangle Proportional to
its Area, 648. Definite Integrals, 271. Delessite, 77. Diethylmethyl-sulphine, 254. Differential Telephone. See Telephone. Differential Thermoscope, 537. Differential Steam-Pressure Thermo- meter, 535.
Disruptive Discharge of Electricity, by Dr Alex. Macfarlane and P. M. Play- fair, 50.
Dithionate of Trimethyl-sulphine, 54. Dome of the Rock at Jerusalem, 481. Donaldson (Dr) on Professor Geddes's Theory of the Iliad, 105. Donations to the Library, 735. Donders (Frank Cornelius) Elected an Honorary Fellow, 92.
Dove (Heinrich Wilhelm), Obituary Notice of, 356.
Duboisia Hopwoodii, 201. Dudgeon (Patrick), of Cargen, exhibits Auriferous Quartz from Leadhills Dis- trict, 67.
Ecteinascidia, n. g., 721; Ecteinascidia fusca, n. sp., 723; Ecteinascidia tur- binata, 724.
Edinburgh Churchyards, Rock-Weather. ing in, by Professor Geikie, 518. Election of Office-Bearers for Session 1878-79, 1; for Session 1879-80, 315.
Electric Currents produced by Friction between Conducting Substances, by James Blyth, 548.
Discharge between a Point and a Plate, and between a Ball and a Plate, by Dr A. Macfarlane, 555.
Resistance; its Variation with Temperature in the case of Alloys, by Professor M'Gregor and Dr Knott, 714.
Electrical Contact, the Transmission of Sound by Loose, 272.
Electricity, Disruptive Discharge of, by Dr A. Macfarlane and P. M. Play- fair, 50.
Passage of Spark between Equal Spherical Balls, 50; between Plate and Ball, 50; between Plate and Point, 50.
Discharge through a Solid Dielectric, 50.
Discharge of Electricity through Olive Oil, 727.
Researches on Contact Elec- tricity, by Dr C. G. Knott, 362.
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.
Elliptic Space, 644; Geometry of Ellip- | Forbes (Principal James David), Inci- 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 Vpop=0, 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,
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 Velocity 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 Striæ 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.
Glass, its Compressibility, by J. Y. | Heddle (Professor), Chapters on the
Globigerinæ of "Challenger" Expedi- tion, 509.
Gibson-Craig (Sir William), Obituary Notice of, 24. Glauconite, 76.
Goodwin (W. L.), New Bases of the Leucoline Series, Part II., 224; Part III., 256.
Gramme Magneto-Electric Machine, Determination and Measurements of the Electromotive Force of, 55, 90. Granites, their Weathering, 531. Grant (Sir Alexander, Bart.), pro- nounces an Eloge of Professor Kel- land, President of the Society, 208; contributes an Obituary Notice of Mr John Blackwood, 329. Graphitoid Boron, by Dr R. Sydney Marsden, 733.
Gravitational Oscillations of Rotating Water, by Sir William Thomson, 92. Gray (Asa), Elected an Honorary Fel- low, 92.
Gray (Robert), contributes Obituary Notices of Arthur, Marquis of Tweed- dale, 348, and of Dr James M'Bain, 350.
on Two Unrecorded Eggs of the Great Auk (Alca impennis), with Remarks on its former existence in Newfoundland, 668. Gray (Thomas), on Specific Heat of Saline Solutions, 689. Griffith (Sir Richard), Obituary Notice of, 17.
Guthrie (Professor Frederick), Note on the Colouring of Maps, 727.
Mineralogy of Scotland. Chapter V. The Micas, 64; Chapter VI. Chloritic Minerals, 76.
awarded the Keith Prize for his Papers on the "Phombohedral Carbonates" and on the "Felspars of Scotland," 62.
Notes on Boulders in Ayrshire, 607; and in Argyleshire, 608; Re- marks on his Boulder Explorations, 626. Henderson (Charles J.), Heating and Ventilating of Churches and other Buildings, 72.
Henderson (John), Notes on Drift and
Glacial Phenomena on the Pentland Hills, 187, 193.
Herdman (Dr W. A.), Report on the Tunicata of the " Challenger" Ex- pedition, 458, 714.
High-Pressure Steam Thermometers, 435.
Home (David Milne) of Milne-Graden, LL.D. See under Milne-Home. Homaloidal Space, 644. Honorary Fellows, Session 1878-79, 3, 92; Session 1879-80, 319. Hospital of St John at Jerusalem, 487. Hullite, 77. Hyperbolic (Infinite) Space, 645. A Plane in Hyperbolic Space may be divided into a Network of Regular Polygons, 651.
Hyperbolic Space. --In Hyperbolic Space there are two parallels through a given point to a given straight line, 652. Trigonometry of Hyperbolic Space, 660.
Gutta-Percha, its Elasticity after being Hyperbolic Triangle, 649. Boiled in Water, 53.
Hannay (J. B.) and Anderson (Robert) on the Expansion of Cast Iron while Solidifying, 359.
Harkness (Robert), Obituary Notice of, 31.
Harmonics (Spherical), 280. Haughtonite, 64, 65.
Haycraft (J. B.), Physiological Results of Temperature Variation, 68.
Method for the Quantitative De- termination of Urea in the Blood, 564. Heat (Specific) of Saline Solutions, by Thomas Gray, Tokio College, Japan, 689. Heating and Ventilating of Churches and other Buildings, by Charles J. Henderson, 72.
Iceland, Destruction of the Great Auk there, 679.
Ightham House, Kent, Account of Salmon Disease there, 372. "Iliad," Professor Geddes's Theory of the "Iliad," by Professor Blackie, 103. India-Rubber, its Elasticity at Different Temperatures, by Professor Tait, 2,
Instrument for Detecting Coal Gas in Coal Mines, by Professor George Forbes, 365. Integrals.-On Methods in Definite Integrals, by Professor Tait, 271. Iris, the Action of Light on, by William Akroyd, 37.
Iron, its Expansion while Solidifying, by J. B. Hannay and Robert Ander- son, 359.
Janssen (Jules) elected an Honorary Fellow, 92.
Jenkin (Professor Fleeming) awarded the Keith Prize for the Period 1877-79 for his Paper "On the Application of Graphic Methods to the Determi- nation of the Efficiency of Machinery," 545, 637; Address by Professor Balfour on presenting the Prize, 637. Jerusalem, its Topography, by Lieut. Claude Reignier Conder, R.E., 474.
Discoveries at, by Dr Robinson, 477; Colonel Warren, 477, 478. Jolly (William) on the Transportation of Rocks and carried Boulders of Moray Firth, 178, 193, 620.
Keith Prize for Biennial Period 1875- 77, Presented to Professor Heddle, 62. Kelland (Professor Philip) elected Pre- sident of the Society, 1.
Delivers Introductory Address for Session 1878-79, 2.
his Address on Presenting the Keith Prize to Professor Heddle, 62.
Notice of his Death, and Eloge of, by Sir Alexander Grant, 208. The Society express their great regret at the Death of their President, 211.
Obituary Notice of, 321. Knots. On the Measurement of Be- knottedness, by Professor Tait, 48. Knott (Dr C. G.) and Professor Mac- gregor on the Variation and Tem- perature of the Electric Resistance of certain Alloys, 714.
Researches on Contact Elec-
Lamont (Johann von), Obituary Notice of, 358.
Laplace's Dynamical Theory of the Tides, 92.
Laws of the Society.-Alteration of Law XVII., and Addition to Law XV., 408.
Leucoline Series, Part II., by G. Carr Robinson and W. L. Goodwin, Part II., 224, Part III., 256.
M.A., 56, 68. Mr Aitken's Obser- vations on the subject, 409. Listing (Jules Benedict) elected an Honorary Fellow, 92.
Logical Algebra, Principles of, Part I., by Dr Alexander Macfarlane, Part I., 44, Part II., 61, Part III., Applica- tion to certain Problems in the Theory of Probability, 105.
Loch-Lomond, Distribution of Tempera- ture in, by J. Y. Buchanan, 69. Mr Aitken's Observations on this subject, 414.
M'Bain (Dr James), Obituary Notice of, 350. Macfarlane (Dr Alexander) on a Calcu- lus of Relationship, 224.
Principles of Logical Algebra, Part I., 44, Part II., 61, Part III., Application to certain Problems in the Theory of Probability, 105.
on the Solution of the Simul- taneous Equations ax + by = c, and dx+ey=f, when the Symbols denote Qualities, 283.
on Positive and Negative Elec- tric Discharge between a Point and a Plate, and between a Ball and a Plate, 555. Point and Plates, 557, 560; Ball and Plate, 558, 561.
Suggestions on the Art of Signalling, 698.
and Playfair (P. M.) on the Dis- ruptive Discharge of Electricity, 50.
on the Discharge of Electricity through Olive Oil, 727. MacGillivray (Dr), his Description of the "Big Boulder" in Barra, 177. M'Gregor (Professor) and Knott (Dr C. G.) on the Variation with Tempera- ture of the Electric Resistance of certain Alloys, 714.
Makdougall - Brisbane Prize for the Period 1876-78, presented to Pro- fessor Geikie, 272. M'Kendrick (Professor J. G.) on the Effects of Chloroform, Ethidene Dich- loride, and Ether on Blood-Pressure,
M'Laren (Charles), Notes on the Striæ and Boulders on the Pentlands,
Light, its Action on the Iris, by Magnetic Bodies, their Properties as
William Akroyd, 37.
Links. If the Line divides Unsymmet- rical Angles, the whole becomes a Link, 49.
Linlithgow Loch, Distribution of Tem- perature in, by J. Y. Buchanan,
Determined by the Wire Telephone, 707.
Maps. On the Colouring of Maps, by Professor Tait, 501.
Note on the Colouring of Maps, by Professor Frederick Guthrie, 727.
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