1248 
*Nitrogen, atmospheric, description of 
the method used in converting, into 
ammonia, by Messrs. Brin, 977. 
Nitrous anhydride, gaseous, the non- 
existence of, Prof. W. Ramsay and J. T. 
Cundall on, 965. 
Nitrous gases, the action of, upon amyl 
alcohol, by J. Williams and M. H. 
Smith, 992. 
Norris (Lieut.) on the erosion of the 
coast at Bembridge, &c., 430. 
North-western tribes of the Dominion of 
Canada, report on the physical charac- 
ters, languages, and industrial and 
social condition of the, 696. 
Nowise(W.E.C.) onthe erosion of the coast 
from Littlehampton to Brighton, 434. 
Numidian marbles, lost, in Algeria and 
Tunis, Lt.-Col. R. L. Playfair on the 
re-discovery of, 1018. 
*Oceanic islands and shoals, by J. Y. 
Buchanan, 1136. 
Odling (Prof.) on chemical nomenclature, 
262; on the ultra-violet spark spectra 
emitted by metallic elements and their 
combination under varying conditions, 
276; *a plea forthe empiric naming of 
organic compounds, 972. 
*Oil pipe lines, the American system of, 
by J. H. Harris, 1193. 
Old coast lines near Trondhjem, Norway, 
some results of a detailed survey of 
the, by H. Miller, 1033. 
Oligochzta, budding in the, Prof. A. G, 
Bourne on, 1096. 
——, contributions to the structure of 
the, by F. E. Beddard, 1102. 
Ommanney (Adm. Sir E.) on the rate of 
erosion of the sea-coasts of England 
and Wales, 404; on the aid given by 
the Dominion Government and the 
Government of the United States to 
the encouragement of fisheries, and to 
the investigation of the various forms 
of marine life on the coasts and rivers 
of North America, 479; Antarctic re- 
search, 1132. 
Ophrydium versatile, the zoocytium or 
gelatinous matrix of, Prof. A. Harker 
on, 1074. 
*Optical comparison of methods for ob- 
serving small rotations, by Lord Ray- 
leigh, 930. 
Optical theories, report on, by R. T. Glaze- 
brook, 157; the work of MacCullagh, 
Neumann, Green, and Cauchy, id,; 
modern developments of the elastic 
solid theory, 170; theories based on 
the mutual reaction between the ether 
and matter, 212; the electro-magnetic 
theory, 251. 
Orchids, the occurrence of fungi in the 
roots of, J. Macmillan on, 1083, 
INDEX. 
*Ordnance Survey of Cyprus, the, by T. 
Saunders, 1129. 
Orthoptic loci, Rev. Dr. C. Taylor on, 
909. : 
*Os odontoidium, the connection of the, 
with the centrum of the axis vertebra, 
Prof. D. J. Cunningham on, 1101. 
Overland expeditions to the Arctic coast 
of America, Dr. J. Rae on, 1133. 
Owen (Sir R.), American evidences of 
eocene mammals of the ‘plastic clay’ 
period, 1033. 
Oxygen, the rate of explosion of hydro- 
gen and, H. B. Dixon on, 905. 
*Oxygen, liquid, the chemical actions of, 
Prof. Dewar on solutions of ozone and, 
985. 
*Oxygen and nitrogen from the atmo- 
sphere, exhibition and description of 
the apparatus employed in obtaining, 
by Messrs. Brin, 977. 
*Ozone, solutions of, and the chemical 
actions of liquid oxygen, Prof. Dewar 
on, 985. 
Ozonised air, the action of, upon micro- 
organisms and albumen in solution, 
J.J. Coleman on, 1058. 
Palzontology of Staffordshire, Worcester- 
shire, and Warwickshire, list of works 
on the, by W. Whitaker, 780. 
Palestine, report of the Committee for 
promoting the survey of, 691. 
, notice of an outline geological map 
of, by Prof. E. Hull, 1015. 
*Paludina, the renal duct of the, W. B. 
Benham on, 1103. 
Parallel roads of Lochaber, the, by J. 
Melvin, 1035. 
Parker (J.) on the circulation of under- 
ground waters, 380. 
Parsons (Capt. J.) on the rate of erosion 
of the sea-coasts of England and Wales, 
404, 
Patent legislation, report on, 695. 
Pauperisation of children by the opera- 
tion of the ‘Scotch Education Act, 
1872,’ M. Blair on the, 1176. 
Peach (B. N.) and J. Horne, the geology 
of Durness and Eriboll, with special 
reference to the Highland controversy, 
1027 ; further evidence of the exten- 
sion of ice in the North Sea during the 
glacial period, 1036. 
Pelvic brim, the index of the, as a basis 
of classification, by Prof. W. Turner, 
1205. 
Pengelly (W.) on underground tempera- 
ture, 93; on the erratic blocks of Eng- 
land, Wales, and Ireland, 322; on the 
circulation of underground waters, 
380; Happaway Cavern, Torquay, 
1219. 
