90.

199.

Highlands, the physical structure of the, in connexion with their geological history, the Duke of Argyll on, 81.

High-level terraces in Carron valley, county of Linlithgow, D. MilneHome on, 94.

Hittite, Khita, Hamath, Canaanite, Lydian, Etruscan, Peruvian, Mexican, &c., Hyde Clark on, 165.

Holmes (J. V.) and R. Russell on the raised beach on the Cumberland coast, between Whitehaven and Bowness, 95.

*Hope (Col.) on the purification of the Clyde, 64.

Hopwood (E. O.) and H. G. Brooke on the changes in the circulation which are induced when the blood is expelled from the limbs by Esmarch's method, 147.

*Horck (H. v. H. v. d.) on the Laplanders and people of the north of Europe, 166.

*Horned men of Akkem in Africa, Capt. J. S. Hay and Commander Cameron on, 165.

Hull (Prof. E.) on the upper limit of essentially marine beds of the carboniferous system of the British Isles, and the necessity for the establishment of a middle carboniferous group, 90; on a deep boring for coal at Scarle, near Lincoln, 91.

Humerus, Prof. Cleland on the morphological relations of the lower end of the, 148.

Hunter (T. S.) on dock- and quay-walls, foundations, &c., 225. *Hunterian Museum, Prof. J. Young on the new cases in the, 147. *Hydriodic acid, R. D. Silva on the

action of, on mixed ethers of the general formula CnH2n+,+O.CH„, 68. *Hydrocarbons from turpentine, two new, A. C. Letts on, 65. Hydro-geological surveys, B. Latham on the importance of, from a sanitary point of view, 226.

Hygiene, physical education and, in schools, W. Jolly on, 207.

Indian opium revenue, Rev. F. S. Turner on the statistics of the, 210. Instability of steady motion, Sir W. Thomson on a new case of, 35. Instinct, Rev. J. M'Cann on the origin of, 166.

Inverse problems of moments of inertia and of moments of resistance, résumé of researches on the, by Prof. G. Jung,

21.

Iodine, E. C. C. Stanford on the manufacture of, 68.

Ireland, H. Jephson on the valuation of property in, 206.

Iron ships, compass correction in, Sir
W. Thomson on, 45.
Iso-purpurine, Dr. W. A. Tilden on a
new, 70.

*Jack (R. L.) on Tertiary basalt-rock dykes in Scotland, 92.

- (Dr. W.) on the results of five years of compulsory education, 200. *Janssen (Dr. J.) sur les usages du revolver photographique en astronomie et en biologie, 40; *photographies du passage de Vénus à Kobé, 40; sur le mirage en mer, 40; *on solar photography, with reference to the history of the solar surface, 40; *on the eclipse of the sun observed at Siam in April 1875, 40.

Jeffery (H. M.) on plane cubics of the third class with a double and a single focus, 17; on spherical class-cubics with double foci and double cylic arcs, 19.

Jeffreys (J.Gwyn), the biological results of a cruise in H.M.S. Valorous' to Davis Strait in 1875, 147. Jephson (II.) on the valuation of property in Ireland, 206. *Johnston (Surgeon-Major) on the dynamics of the racial diet in India, 154. *Jointed prismatic structure in basalts and other igneous rocks, further illustrations of the, by Prof. J. Thomson, 96.

Jolly (W.) on physical education and hygiene in schools, 207.

Jordan valley, Prof. Porter on the phy

sical conformation and antiquities of the, 184.

Jung (Prof. G.), résumé of researches on the inverse problems of moments of inertia and of moments of resistance, 21; résumé of researches upon the graphical representation of the mo

ments of resistance of plane figures, 23; on a new construction for the central nucleus of a plane section, 25.

*Kennedy (Prof. A. B. W.) on centroids, and their application to some mechanical problems, 26; on Reuleux's treatment of mechanisms, 226. Kerr (Dr. J.) on rotation of the plane of polarization by reflection from a magnetic pole, 40.

Kingzett (C. T.) on the limited oxidation of terpenes (Part IV.), 64; on the action of alcohol on the brain, 154.

Knowles (W. J.), the classification of arrow-heads, 166; additional remarks on the find of prehistoric objects at Portstewart, 166.

*Knox (Dr.) on Bosjes skulls, 166.

Labyrinthodont remains from the upper Carboniferous (gas-coal) of Bohemia, Dr. A. Fritsch on, 80.

*Ladd (W.), a description of Spottiswoode's pocket polarizing apparatus,

41.

*Lamina immersed obliquely in a fluid stream, Lord Rayleigh on the forces experienced by a, 31.

Lamp, R. Lavender on a new form of, 229.

*Laplanders and people of the north of Europe, H. v. II. v. d. Horck on the,

166. Larmuth (L.) on the poisonous activity of vanadium in ortho-, meta-, and pyrovanadic acids, 155.

and Prof. Gamgee on the action of vanadium upon the intrinsic nervous mechanism of the frog's heart, 151.

and J. Priestley on the action of pyrophosphoric acid on the circulation, 152. Lasaulx (Dr. von) on some new minerals,

and on doubly-refracting garnets, 92. Latham (B.) on the importance of hydrogeological surveys from a sanitary point of view, 226.

the southern extension of the lowest Carboniferous rocks, 93.

*Lecture-table, the new, for physical demonstration in the Royal College of Science for Ireland, diagrams and description of, by Prof. Barrett, 48. Legendre's scale for calculating the first elliptic integral, Prof. F. W. Newman on the use of, 28. Lesmahagow, Dr. R. Slimon on the Upper Silurian rocks of, 96. *Letts (A. C.) on two new hydrocarbons from turpentine, 65. Lightning, the protection of buildings from, Prof. J. C. Maxwell on, 43. Limnocharis Plumieri, Prof. A. Dickson on laticiferous canals in, 145. *Liverpool, overcrowding in, R. W. Pitcher on, 208.

Lodge (O. J.) on a mechanical illustration of electric induction and conduction, 42; on a mechanical illustration of thermoelectric phenomena, 43. Long (J.) on an apparatus for cleaning filtering-sand, 232.

*Lungs, Dr. W. Stirling on the nervous apparatus of the, 163.

M'Cann (Rev. J.) on the origin of instinct, 166; on the organization of original research, 207.

Macfadzean (J.) on the parallel roads of Glen Roy, 93.

M'Kendrick (Dr. J. G.), Address by, to the Department of Anatomy and Physiology, 126.

Mackerel sky, physical explanation of the, by Sir W. Thomson, 54. MacLean (H.) on the Gaelic inhabitants of Scotland, 166; on the Anglicizing and Gaelicizing of surnames, 167. *M'Nab (Prof.) on Choreocholax polysiphonia, Reinsch, 144; *on the structure of the leaf in different species of Abies, 144.

*Mactear (J.) on soda manufacture, 65. *Macvicar (Dr.) on the possible genesis of the chemical elements out of a homogeneous cosmic gas or common vapour of matter, 65.

stration of a fundamental principle of the theory of functions, 26. *Many-valued functions, M. M. W. Wilkinson on, 30.

*Marcoartu (Don A. de) on Spanish mining, 207.

Mason (S.) on the depreciation of silver and a gold standard for India, 207. Mathematical and Physical Section, Prof. Sir W. Thomson's Address to the, 1. Matheson (J., jun.) on the silver dilemma, 207.

Matricaria inodora, Prof. A. Dickson on two monstrosities of, 143.

Maxwell (Prof. J. C.) on the protection of buildings from lightning, 43. Mechanical Section, C. W. Merrifield's Address to the, 211.

theory of the soaring of birds, by W. Froude, 31.

Medusa, physiology of the nervous system of, G. J. Romanes on, 158. *Mensuration of certain solids, Prof. J. Thomson on a theorem in the, 30. *Mental progress of animals during the human period, J. Shaw on, 169. Merrifield (C. W.), Address by, to the Mechanical Section, 211. *Metal surfaces, J. B. Beynon on a hand machine for shaping and finishing metal surfaces, 219.

Metallic reflection, Prof. G. G. Stokes on a phenomenon of, 41. Metric units of force, energy, and power, larger than those on the centimetregram-second system, Prof. J. Thomson on, 32.

Microscope adapted for showing the circulation in the human subject, Dr. U. Pritchard on a, 158.

Mildew in grey cloth, W. Thomson on the growth of, 70.

Military field-railway, J. B. Fell on experiments made with a new form of, 223.

Millar (W. J.) on the strength and fracture of cast iron, 227.

Milne-Home (D.) on the parallel roads of Glen Roy, 93; on high-level terraces in Carron valley, county of Linlithgow, 94.

*Mind, Prof. Barrett on some phenomena associated with abnormal conditions of, 164.

Minerals, some new, Dr. von Lasaulx on,

92.

*Mirage en mer, Dr. J. Janssen sur le, 40.

*Mitchell (W. S.) on the Bagshot peatbeds, 94.

More (A. G.) on the occurrence in Ireland of Nuphar intermedium, Ledeb., 144; on Zostera nana from Carnarvonshire, 144.

Morris (Rev. F. O.), a double dilemma in Darwinism, 147.

Muir (M. M. P.) on essential oil of sage, 65; on the action of dilute saline solutions upon lead, 66; on certain compounds of bismuth, 66.

(T.) on convergents, 27; on the relation between two continued fraction expansions for series, 28. *Murray (J.), notes on oceanic deposits and their origin, based on observations made on board H.M.S. 'Challenger, 147; on the geological distribution of oceanic deposits, 183.

Names, the prehistoric, for man, mon

key, lizard, &c., Hyde Clarke on, 165. Napier (C. O. Groom) on the unwhole

someness of flesh diet in tropical climates, 153; on the Phoenicians, 165. "Nasmyth (J.) on a spherical pendulous safety-valve, 229.

*Naval signalling, Sir W. Thomson on,

233.

Nerves, the termination of, in the vesti

bule and semicircular canals of Mammals, Dr. U. Pritchard on, 156. New Guinea, Octavius Stone on his recent journeys in, 184.

N.W., G. E. Cerruti on his recent explorations in, 182.

Newlands (J. A. R.) on relations among the atomic weights of the elements, 66; on the alum process in sugar-refining, 66.

Newman (Prof. F. W.) on the use of

Legendre's scale for calculating the first elliptic integral, 28.

Newton (Prof. A.), Address by, to the Department of Botany and Zoology, 119.

Nichols (Kerry), explorations in the islands of the Coral Sea, 167, 183. *Nicholson (Prof. A. H.) and Prof. Harkness on the strata and fossils between the Borrowdaile series of the Coniston flags of the north of England, 90. *Niger, A. Bowden on a new route to the sources of the, 181.

*Nitroso derivatives of the terpenes, Dr. W. A. Tilden on the, 70. Nuphar intermedium, Ledeb., A. G. More on the occurrence in Ireland of, 144. *Nutation of a solid shell containing liquid, Sir W. Thomson on the, 35.

Objectives, large, H. Grubb on the testings of, 36. Oceanic deposits, J. Murray on the geological distribution of, 183.

and their origin, notes on, based on observations made on board H.M.S. Challenger,' by J. Murray, 147. Old Red Sandstone, E. A. Wünsch on the junction of granite and, at Corrie and Glen Sannox, Arran, 98. Optical glass, the defects in, arising from a want of homogeneity, H. Grubb on a method of photographing, 37. *Original research, Dr. M'Cann on the organization of, 207.

*Overcrowding in Liverpool, R. W. Pitcher on, 208.

Oxidation of terpenes, the limited, C. T. Kingzett on, 64.

*Oxygen, G. J. Stoney on the atomicity of, 69.

Pandaneæ of the Mascarene and Seychelles Islands, I. B. Balfour on the,

142.

Parallel motion, W. Hayden on, 16. *Parallel roads of Glen Roy, J. Macfadzean on the, 93.

D. Milne-Home on the, 93. *Passage of fluids through capillary and other tubes, Prof. F. Guthrie and Dr. F. Guthrie on the, 31. Patent legislation, St. J. V. Day on recent attempts at, 198. *Paterson (Rev. J.) on a journey across Finland, from Ellenborg to Archangel via Kemi, 183.

*Paton (Dr.) on the action and sounds of the heart, 155. *Patterson (T. L.) on sugar, 67. Peach (C. W.) on circinnate vernation of Sphenopteris affinis from the earliest stage to completion, and on the discovery of Staphylopteris, a genus new to British rocks, 94, 144. Pendulum-vibrations, the conditions of the transformation of, R. II. M. Bosanquet on, 45.

Pengelly (W.) on an urn from Chudleigh, Devon, 169.

*Pentachloride of phosphorus, the action of, on turpentine, Prof. Crum Brown on, 62.

*Perak and Salangore, W. D'Almeida on, 182.

Perkin (W. H.), Address by, to the Chemical Section, 55; on some new anthracene compounds, 67. *Perry (Prof.) and Prof. Ayrton on the contact theory of voltaic action, 42.

*Phené (J. S.) on relics of Totemism in Scotland in historic times, 169; *on the Arthurian apple and the serpent of the ancients, 169. *Phoenicians, C. O. Groom Napier on the, 165.

Phosphorite deposits of the south of France, J. E. Taylor on the age, fauna, and mode of occurrence of the, 96.

Phosphorus, the difference in the poisonous activity of, in ortho-, meta-, and pyro-phosphoric acids, Prof. Gamgee, John Priestley, and Leopold Larmuth on, 151.

*Photography, solar, with reference to the history of the solar surface, Dr. J. Janssen on, 40.

*Photometric measurements of the magneto-electric light, by Capt. Abney,

36. Physemarien (Haliphysema und Gastrophysema), E. Haeckel über die, 153. Physical structure of the Highlands, the Duke of Argyll on the, in connexion with their geological history, 81. Physiological action of pyro-, meta-, and ortho-phosphoric acids, Prof. Gamgee on the, 64,

of sight, recent additional observations on the, by Prof. Dewar, 151. Physiology, Dr. J. G. M'Kendrick's Address to the Department of Anatomy and, 126.

Picoline and its derivatives, Dr. W. Ramsay on, 67.

*Pitcher (R. W.) on overcrowding in Liverpool, 208.

*Placenta, Prof. W. Turner on the structure of the, in relation to the theory of Evolution, 163.

Plane cubics of the third class with a double and a single focus, H. M. Jeffery on, 17.

Plants of the Coal-measures, Prof. W. C. Williamson on some of the physiological and morphological features seen in the, 145.

Playfair (Col. R. L.) on travels in
Tunis in the footsteps of Bruce, 183.
*Pneumatic tramway-car, W. D. Scott-
Moncreiff on a, 233.

Polarization, rotation of the plane of, by reflection from a magnetic pole, Dr. J. Kerr on, 40.

*Pollution of rivers, Rev. R. Thomson on the prevention of, 70. Poor law, the Scottish, A. M'N. Caird on some special evils of, 197.

Porter (Prof.) on some points of interest

in the physical conformation and antiquities of the Jordan valley, 184. Portstewart, additional remarks on the finding of prehistoric objects at, by W. J. Knowles, 166. Pre-carboniferous and metamorphosed trap-dykes, and the associated rocks of North Mayo, Ireland, W. Traill on certain, 97.

Precessional motion of a liquid, Sir W. Thomson on the, 33. Priestley (J.) on the physiological action of vanadium, 155; on the physiological action of chromium, 156.

Prof. Gamgee, and L. Larmuth on the difference in the poisonous activity of phosphorus in ortho-, meta-, and pyrophosphoric acids, 151; on the action of pyrophosphoric acid on the circulation, 152.

Primitive agriculture, A. W. Buckland on, 164.

Pritchard (Dr. U.) on the termination

of the nerves in the vestibule and semicircular canals of Mammals, 156; *on a microscope adapted for showing the circulation in the human subject, 158.

*Purser (Prof. J.) on the modification of the motion of waves produced by fluid friction, 31.

*Putumayo or Içá, the river, South America, A. Simson on, 184. Pyrophosphoric acid, the action of, on the circulation, Prof. Gamgee, J. Priestley, and L. Larmuth on, 152. *Pyrotartaric acid, remarks, by W. Dittmar, on Reboul's paper on, 63.

Radiometer, W. Crookes on the influence of the residual gas on the movement of the, 30. *Railway appliances, R. R. Harper on improvements in, 225.

trains, W. Stroudley on communications between passengers and guards in, 233.

Railways on three-foot gauge in the United States, Capt. D. Galton on,

224.

Raised beach on the Cumberland coast, between Whitehaven and Bowness, R. Russell and J. V. Holmes on the, 95.

Ramsay (Dr. W.) on picoline and its derivatives, 67.

*Rayleigh (Lord) on the forces experienced by a lamina immersed obfiquely in a fluid stream, 31.

*Reboul's paper on pyro-tartaric acid,W. Dittmar on, 63.

*Red soil of India, Dr. Gilchrist on the, 90.

Residual gas, the influence of the, on the movement of the radiometer, W. Crookes on, 30.

*Reuleaux's treatment of mechanisms, Prof. A. B. W. Kennedy on, 226. *Revolver photographique en astronomie et en biologie, Dr. J. Janssen sur les usages du, 40. *Reynolds (Dr. J. E.) on glucinum, its atomic weight and specific heat, 68.

(Prof. O.) on the resistance encountered by vortex rings, and the relation between the vortex ring and stream-lines of a disk, 31; on the investigation of the steering qualities of ships, 229.

Right-handedness, J. Shaw on, 169. Rivers, Rev. R. Thomson on the prevention of the pollution of, 210. Romanes (G. J.), physiology of the nervous system of Medusa, 158. *Römer (Dr. F.) on the mountain limestone of the west coast of Sumatra, 95.

Ross (Rev. W.) on the educational value of their native language to the Gaelicspeaking population of Scotland, 208. Rowan (F. J.) on boiler incrustation and corrosion, 229.

Russell (F.) on Sheriff courts and relative judicial statistics, 208.

(R.) and J. V. Holmes on the raised beach on the Cumberland coast, between Whitehaven and Bowness, 95.