218 
Nuclei, Charles Tomlinson on the action 
of, in inducing crystallization, 45, 
Occupation, Francis G. P. Neison on the 
influence of, upon health, 174. 
Old Red Sandstone of Kiltorean Hill, 
co. Kilkenny, W. Hellier Baily on 
some fossils from the, 58. 
, J. W. Salter on a new Prerygotus 
from the lower, 78. 
Ommatoplea, Dr. W.C. M‘Intosh on the 
proboscis of, 105. 
Organic functions, Dr. Richardson on 
effects of extreme cold on, 119. 
Origin of species, B. T. Lowne on type- 
variation and polymorphism in their 
relation to Mr. Darwin’s theory of the, 
104. 
Oxalic ether, A. R. Catton on Liwig’s 
researches on the action of sodium 
amalgam on, 35. 
*Pain, Prof. Rolleston on the physiology 
of, 120, 
Palgrave (W. Gifford) on the north-east 
Turkish frontier and its tribes, 140. 
Paraffin, and its products of oxidation, 
Dr. Meusel and C. H. Gill on, 39. 
*Patagonia, Consul T. J. Hutchinson on 
the Tehuelche Indians of, 137. 
*Patent monopoly, Henry Dircks on, as 
affecting the encouragement, improve- 
ment, and progress of science, arts, 
and manufactures, 159. 
*Payne (Joseph) on the relation between 
learning and teaching, 175. 
Peach (C. W.) on the fossil fishes of 
Cornwall, 76 ; on a new Eschara from 
Cornwall, 109. 
Peach, Dr, Karl Koch on the specific 
identity of the almond and the, 192. 
Pengelly (W.) on the condition of some 
of the bones found in Kent’s Cavern, 
Torquay, 76. 
Perkin (W. H.) on chloride of methylene 
obtained from chloroform by means of 
nascent hydrogen, 40; on the prepa- 
ration of some anhydrous sodium de- 
rivatives of the salicylic series, 41. 
Phipson (Dr. T. L.) on sulphocyanide of 
ammonium, 41. 
*Physiological activity, Dr. A. Crum 
Brown on the connexion between 
chemical constitution and, 113. 
Piedmont, M. Mogeridge on the “ Muffa” 
of ae sulphur-springs of Valdieri in, 
Pietermaritzburg, Natal, Dr. R. J. Mann’s 
poteprolagiog observations made at, 
REPORT—1868, 
Plants, Dr. Karl Koch on the necessity 
of photographing, to obtain a better 
knowledge of them, 102. 
, Sapindaceous, Prof. Radlkofer on 
the structural peculiarities of certain, 
109. 
, South European, Prof. Hennessy 
on the possible introduction of, in the 
west and south of Ireland, 98. 
*Platinum, C. W. Siemens on the elec- 
tric conductivity of, as affected by the 
process of manufacture, 20. 
Polymorphism, B. T. Lowne on type- 
variation and, in their relation to Mr. 
Darwin’s theory of the origin of 
species, 104. 
Porter (Henry J. Ker) on the extension 
of the Contagious Diseases Act, 175. 
Postglacial structure of Norfolk and 
Suffolk, 8. V. Wood, jun., and F, W. 
Harmer on the glacial and, 80. 
*Prairie Indians, W. Hepworth Dixon on 
the great Prairies and, 134. 
Prairies, R. Brown on the formation of, 
134. 
*Prison-labour, Sir John Bowring on the 
moral and pecuniary results of, 156. 
Proboscis of Ommatoplea, Dr. W. C. 
M*‘Intosh on the, 105. 
Projectiles, Joseph Whitworth on the 
proper form of, for penetration under 
water, 195. 
Propulsion of ships, Charles W. Merri- 
field on the necessity for further ex- 
pene knowledge respecting the, 
193. 
*Pterodactyle, H. G. Seeley on the re- 
lations between extinct and living 
reptiles, and the present state of our 
knowledge of, 78. 
Pterygotus, J. W. Salter on a new, from 
the Lower Old Red Sandstone, 78. 
Pulse, Dr. Francis E. Anstie on certain 
effects of alcohol on the, 111. 
Quaternary deposits, Charles Moore on 
new discoveries connected with, 74. 
Queen Charlotte Islands, R. Brown on 
the physical geography of the, 133. 
Radlkofer (Prof.) on the structural pecu- 
liarities of certain sapindaceous plants, 
109. 
Railway, W. Thorold on an auxiliary, 
for turnpike roads and highways pas- 
sing through towns, 195. 
Rankine (Prof. W. J. Macquorn) on a 
probable connexion between the resis- 
tance of ships and their mean depth 
of immersion, 194. 
