1254 
circulation of underground waters, 
380; on the work of the Corresponding 
Societies Committee, 708. 
*Synoptic charts, daily, of the Indian 
Ocean, by C. Meldrum, 917. 
—___, ——, from the year 1861, report of 
the Committee for co-operating with 
the Meteorological Society of the 
Mauritius in their proposed publication 
of, 60. 
Tanner (Lt.-Col. H. C. B.) on Himalayan 
snow peaks, 1126. 
Taste, a new theory of the sense of, by 
Prof. J. B. Haycraft, 1059. 
Taxation, policy in, by J. B. Greig, 1179. 
, imperial, the incidence of, Dr. W. 
A. Hunter on, 1170. 
Tay Viaduct, the new, by C. Barlow, 
883. 
Tay whale (Megaptera longimana), the, 
and other whales recently obtained in 
the district, Prof. Struthers on, 1053. 
Taylor (Rey. Dr. C.) on orthoptic loci, 
909. 
Taylor (H.) on standards for use in elec- 
trical measurements, 31. 
Taylor (J.) on some of our migratory 
birds, as first seen in Aberdeenshire, 
1098. 
Telegraph lines, the relative merits of 
iron and copper wire for, W. H. Preece 
on, 907. 
Telegraph poles, the strength of, W. H. 
Preece on, 853. 
Temperatures, constant known, a means 
of obtaining, Prof. W. Ramsay and 
Dr. 8. Young on, 928. 
Temple (Sir R.) on the teaching of 
science in elementary schools, 692. 
*Thermal effusion and the limiting pres- 
sure in polarised gas, G. J. Stoney on, 
904. 
*Thermodynamic efficiency of thermo- 
piles, by Lord Rayleigh, 898. 
Thermodynamics, certain facts in, Prof, 
W. Ramsay and Dr. 8. Young on, 928. 
Thermometers, methods of preventing 
change of zero of, by age, G. M. 
Whipple on, 938. 
*Thermopiles, thermodynamic efficiency 
of, by Lord Rayleigh, 898. 
Thin (Dr. G.) on the nucleus in the frog’s 
ovum, 1069; *on the structure of 
hyaline cartilage, 1079. 
Thiselton-Dyer (Mr.) on promoting the 
establishment of marine biological 
stations on the coast of the United 
Kingdom, 480; on the exploration of 
New Guinea, 690. 
Thompson (Prof. D’A. W.) *on the syste- 
matic position of the chamzleon, and 
its affinities with the dinosauria, 1065: 
on the hind-limb of ichthyosaurus, and 
INDEX. 
on the morphology of vertebrate ap- 
pendages, ib. ; *demonstration of anew 
moneron, 1097; *on the blastopore, and 
mesoblast of Sabella, 7d. 
Thompson (Prof. 8. P.) on anew polariser 
devised by Mr. Ahrens, 912; on a 
simple modification of the Nicol prism 
giving wider angle of field, 7d. 
Thomson (Prof. A. W.), determination of 
the heliographic latitude and longitude 
of sun-spots, 931. 
Thomson (Prof, J. J.) on electrical 
theories, 97; Ampere’s, 98; Grass- 
mann’s, 100 ; Stefan’s, 103 ; Korteweg’s, 
105 ; Gauss’s, 108; W. E. Weber’s, id. ; 
Riemann’s, 109; Clausius’, 7).; F. E. 
Neumann’s, 114; C. Neumann’s, 122; 
Maxwell’s, 125; v. Helmholtz’s, 133; 
the experimental evidence as to the 
truth of the various theories, 142; 
Schiller’s experiments, 144. 
Thomson (J. M.) on chemical nomencla- 
ture, 262. 
Thomson (Prof. Sir W.) on standards 
for use in electrical measurements, 
31; on meteoric dust, 34; on reduc- 
ing and tabulating tidal observations 
in the English Channel, made with 
the Dover tide-gauge, and connecting 
them with observations made on the 
French coast, 60; on comparing and 
reducing magnetic observations, 65; 
on underground temperature, 93; on 
patent legislation, 695; on constant 
gravitational instruments for measur- 
ing electric currents and potentials, 
905; on a method of multiplying po- 
tential from a hundred to several 
thousand volts, 907. 
Thornycroft (J. T.) on shallow-draught 
screw-steamers for the Nile expedition, 
1193. 
Thorpe (Prof. T. E.) and A. W. Riicker on 
the third magnetic survey of Scotland, 
926. 7 
Thunderstorm of Aug. 6, 1885, remarkable 
occurrence during the, at Albrighton, 
by J. B. Elwell, 924. 
Tidal observations, third report of the 
Committee for the harmonic analysis 
of, 35. 
Tidal observations in Canada, report of 
the Committee for promoting, 33. 
Tidal observations in the English Channel, 
made with the Dover tide-gauge, report 
of the Committee for reducing and 
tabulating, and for connecting them 
with observations made on the French 
coast, 60. 
Tiddeman (R. H.) on the erratic blocks 
of England, Wales, and Ireland, 322. 
Tilden (Prof. W. A.) on the investigation 
of certain physical constants of solu- 
tion, especially the expansion of saline 
