INDEX I. 



233 



Taxation on real propertj-, F. Purdy on 

 the pressure of, 57 ; imperial, in En- 

 land and Wales falling on real pro- 

 perty inl8G7-68, 59 ; local, in England 

 and Wales falling on real property in 

 1867-68, 59. 



Tegetmeier (Mr.) on the practicability 

 of establishing " a close time " for 

 the protection of indigenous animals, 

 91. 



Thermal conductivity of iron, Principal 

 J. D. Forbes's experiments on the, 175. 



Thomson (James) on cutting and pre- 

 paring sections of mountain-limestone 

 corals for photographing, 171. 



Thomson (Prof. James) on the rate of 

 increase of underground temperature, 

 176. 



Thomson (Sir William) on the rate of 

 increase of undergroimd temperature, 

 176 ; on the provision existing in the 

 United Kingdom for the vigorous pro- 

 secution of physical research, 213 ; on 

 standards of electrical resistance, 434. 



Tomlinson (G.) on the rainfall of the 

 British Isles, 383. 



Torell (Professor Otto) on ice as an 

 agent of geologic change, 171. 



Trevelyan (Sir W. C.) on the plant-beds 

 of North Greenland, 1. 



Tristram (Rev. H. B.) on the practica- 

 bility of establishing " a close time " 

 for the protection of indigenous ani- 

 mals, 91. 



Turbinolidre, British fossil, 1-50, 155. 



Tyndall (Professor), Prof. Morren on the 

 chemical reactions of light discovered 

 by, 66. 



on the thermal conductivity of 



iron, 175 ; on the provision now ex- 

 isting in the United Kingdom for the 

 vigorous prosecution of physical re- 

 search, 213. 



Underground temperature, on the rate of 

 increase of, downwards in various 

 localities of dry land and under water, 

 176. 



Utilization of sewage, report on the 

 treatment and, 313. 



Varley (C. F.) on standards of electrical 



resistance, 434. 

 Vivian (E.) on the exploration of Kent's 



Cavern, Devonshire, 189. 



"Wanklyn (Prof. J. A.) on the treatment 



and utilization of sewage, 313. 

 Water, on the rate of increase of under- 

 ground temperature downwards in va- 

 rious localities of dry land and under, 

 176. 

 containing solid matter in suspen- 

 sion, interim report on the laws of the 

 flow and action of, 402. 



Waugh (Sir A.) on the laws of the flow 

 and action of water containing solid 

 matter in suspension, 402. 



Waves, 31 ; oscillations of a ship among, 

 33 ; measurement of, at sea, 39. 



Webb (T. W.) on mapping the surface 

 of the moon, 76. 



Webster (Thomas) on boiler explosions, 

 47. 



Weights and measures, report on the 

 best means of providing for a imifor- 

 mity of, with reference to the interests 

 of science, 308. 



Well-waters, determination of the gases 

 existing in solution in, 55. 



Wheatstoue (Prof. Sir 0.) on standards 

 of electrical resistance, 434. 



Whitworth (Mr. J.) on boiler explosions, 

 47 ; on a uniformity of weights and 

 measures, 308 ; on the penetration of 

 armoiu--plates with long shells of largo 

 capacity fired obliquely, 430. 



Whymper (E.H.), report of proceedings 

 to obtain a collection of fossil plants 

 in North Greenland, 1. 



Williamson (Prof.) on the provision ex- 

 isting in the United Kingdom for the 

 vigorous prosecution of phj-sical re- 

 search, 213 ; on a uniformity of weights 

 and measures, .308 ; on standards of 

 electrical resistance, 434. 



Willis (the Pev. Prof.) on agricultural 

 machiuer}-, 404. 



Wodzicki on the influence of small birds 

 in destroying injurious insects, 93. 



Wood-owl, food of the, 94. 



Woodward (Henry) on cutting and pre- 

 paring sections of mountain-limestone 

 corals for photographing, 171. 



Wright (Dr. E. P.) on the plant-beds of 

 North Greenland, 1. 



Yates (James) on a uniformity of 



weights and measures, 308. 

 Young (Prof.) on the rate of increase of 



underground temperature, 176. 



