INDEX II. 



Thomson (W.) on the growth of mildew 



in f>:rey cloth, 70. 

 Tidal operations in the Gulf of Cutch, 



Capt. A. W. Baird on, 62. 

 retardation argument for the age 



of the earth, J. Croll on the, 88. 

 *Tilden (Dr. W. A.) on the nitroso 



derivatives of the terpenes, 70 ; *pre- 



liminary note on a new iso-purpurine, 



*Time, S. Fleming on the conventional 

 division of, now in use, and on the 

 desirability of adopting common time 

 over the globe for railways and steam- 

 ships, 182. 



Tizard (Staff Commander) on the tem- 

 perature obtained in the Atlantic 

 Ocean durmg the cruise of H.M.S. 

 ' Challenger,' 185. 



Tortoises, gigantic land, and a freshwater 

 species from the Maltese caserns, 

 with observations on their fossil faima, 

 by Prof. A. Leith Adams, 145. 



*Totemism in Scotland in historic times, 

 relics of, J. S. Phene on, 169. 



Traill (W. A.) on certain pre-carboni- 

 ferous and metamorphosed trap-dj'kes, 

 and the associated rocks of North 

 Mayo, Ireland, 97. 



* Tramway car, a pneumatic, W. D. 



Scott-Moncreiff on, 233. 

 'Transformation of gravity, J. Croll on 



the, 30. 

 of pendulum-vibrations, R. H. M. 



Bosanquet on the conditions of the, 



45. 

 True intonation, illustrated by the voice- 

 harmonium with natural tinger-board, 



46. 

 Tullack (W.) on the boarding-out of 



pauper children in England, 209. 

 Tunis, travels in, in the footsteps of 



Bruce, Colonel R. L. Playfair on, 



183. 

 Turner (Rev. F. S.) on the statistics of 



the Indian opium revenue, 210. <■ 



* (Prof. W.) on the structure of 



the placenta in relation to the theory 



of evolution, 163. 

 •Turpentine, the action of pentachloride 



of phosphorus on, Prof. Crum Brown 



on, 62. 



'Upper Silm-ian rocks of Lesmahagow, 



Dr. R. Slimon on the, 96. 

 Urn from Chudleigh, Devon, W. Pen- 



gelly on an, 1<]9. 



* Vacuum-tap, C. II. Giminghnm on a 



new form of, 49. 

 1876. 



*' Valorous ' expedition, the arenaceous 

 Foraminifera collected in the. Dr. 

 W. B. Carpenter on, 146. 



Valuation of property in Ireland, H. 

 Jephson on the, 206. 



Vanadium, J. Priestley on the physio- 

 logical action of, 155. 



, L. Larmuth on the poisonous 



activity of, in ortho-, meta-, and pyro- 

 vauadic acids, 155. 



Variation in thiclmess of the middle 

 Coal-measures of the Wigan coal-field, 

 C. E. De Kance on the, 89. 



*Venus, photographies du passage de, 

 a Kobe, by Dr. J. Janssen, 40. 



*Voltaic action, Profs. Ayrton and Perry 

 on the contact theory of, 42. 



* batteiy, a new, II. W. Biggs on, 



62. 



*Vortex rings, the resistance encoun- 

 tered by, and the relation between 

 the vortex ring and stream-lines of a 

 disk, Prof. O. Reynolds on, 31. 



Walenn (W. II.) on division-remainders 

 in arithmetic, 30 ; *on Mr. Sabine's 

 method of measuring small intervals 

 of time, 52. 



Wallace (A. R.), Address by, to the 

 Biological Section, 100. 



*Wanldyn {J. A.) on the effects of the 

 mineral substances in drinking-water 

 on the health of the community, 163. 



*Ward (F.) on the prevention of frau- 

 dulent alterations in cheques, &c., 70. 



* Water, drinking-, Prof.Wanklyn on the 



effects of mineral substances in, on 

 the health of the community, 103. 



*Waves, the modification of the motion 

 of, produced bj' fluid friction, Prof. J. 

 Purser on, 31. 



* of light and heat, G. J. Stouey 



on the amplitude of, 31. 



*Weldon (W.) on the means of sup- 

 pressing alkfili waste, 70. 



* Whale, the Greenland right, an account 



of dissections of the supposed rudi- 

 mentary hind limb of, by Prof. Stru- 

 thers, 163. 



* , , an .account of finger- 

 muscles found in, bv Prof. Struthers, 

 163. 



Wharfe, the valley of the, Yorkshire, 

 Rev. E. Sewell on the drifts and 

 boulders of the upper part of the, 95. 



*White-lead, J. Fergussou on, 63. 



*White Nile between Gondokoro and 

 Appuddo, observations on the, bv 

 Lieut. W. II. Chippcndall, 182. 



Wigan coal-field, C. E. De Ranee on 



22 



