INDEX II. 



231 



Swedish calculating machine of Messrs. 

 Scheiitz, on mechanical notation as ex- 

 emplified in the, 203. 



Symonds (Rev. W. S.) on a phyllopod 

 crustacean in the upper Ludlow rock 

 of Ludlow, 98. 



Symons (William) on a new form of the 

 gas battery, 15. 



Taylor (Dr.) on waterspouts, 45 ; experi- 

 ments on combustion in furnaces, with 

 a view to the prevention of smoke, 209. 



Tcbadda, on the late expedition up the 

 river, 146. 



Telegraph wires, on peristaltic induction 

 of electric cuiTents in submarine, 21. 



Telescope, photographs of the Craig, at 

 Wandsworth, 12. 



Temperature, on the use of observations 

 of, for the investigation of absolute 

 dates in geology, 18. 



Tennent (Andrew), statistics of a Glasgow 

 grammar-school class of 115 boys, 192. 



Thermo-electric qualities of metals, on the 

 effects of mechanical strain on the, 1 7. 



Thermo-electric position of aluminium, on 

 the, 20. 



Thermograph, on the detection and mea- 

 surement of atmospheric electricity by 

 the, 40. 



Thermometer, on the new maximum, 24. 



Thomson (Dr. Allen) on the formation 

 and structure of the spermatozoa in 

 Ascaris mystax, 138; on the brain of 

 the Troglodytes niger, 139 ; on the 

 history of fecundation in different ani- 

 mals, ib. 



Thomson (James) on certain curious mo- 

 tions observable on the surfaces of wine 

 and other alcoholic liquors, 16; on the 

 friction break dynamometer, 209 ; on a 

 centrifugal pump and windmill erected 

 for drainage and irrigation in Jamaica, 

 210; on an india-rubber valve for 

 drainage of low lands into tidal outfalls, 

 ib. ; on practical details of the mea- 

 surement of running water by weir- 

 boards, 211. 



Thomson (Dr. R. D.) on the condition of 

 the atmosphere during cholera, 71. 



Thomson (Prof. W.) on the effects of me- 

 chanical strain on the thermo-electric 

 qualities of metals, 17; on the use of 

 observations of terrestrial temperature 

 for the investigation of absolute dates 

 in geology, 18; on the electric qualities 

 of magnetized iron, 19 ; on the thermo- 

 electric position of aluminium, 20 ; on 

 peristaltic induction of electric currents 

 in submarine telegraph wires, 21 ; on 



new instruments for measuring elec- 

 trical potentials and capacities, 22. 



Thomson (Prof. Wyville) on the fauna 

 of the lower Silurians of the south of 

 Scotland, 99. 



Tides, on the currents produced by the 

 action of the wind and, 97. 



Timber, on a new method of drying, 208. 



Timbuctoo, description of, its population 

 and commerce, 140. 



Tin, on the compounds of, with arsenic, 64. 



Towns, on moral training for large, 191. 



Towson (John T.) on the means proposed 

 by the Liverpool compass committee 

 for carrying out investigations relative 

 to the laws which govern the deviation 

 of the compass, 22. 



Tracery, on the mechanical principles of 

 ancient, 205. 



Training, on moral, for large towns, 191. 



Trap dykes in Arran, on certain, 94. 



Travancore, on the establishment of a 

 magnetic, meteorological and astro, 

 nomical observatory on the mountain 

 of Augusta Mullay, at G200 feet, in, 25. 



Tree, on the trunk of a, discovered erect 

 as it grew, within the Arctic circle, 101. 



Trematode worm, on a new species of, 1 08. 



Triangle, on the porism of the in-and-cir- 

 cumscribed, 1. 



Trichomonas vaginalis of Donne, demon- 

 stration of the, 125. 



Troglodytes niger, on the brain of the, 139. 



Trout, on a malformed, 109. 



Tiyfe (Dr.) on a series of preparations 

 obtained from the decomposition of Can- 

 nel coal and the Torbane Hill coal, 99. 



Tyndall (Prof.) on the demonstration of 

 the polarity of diamagnetic bodies, 22. 



Tyrosine, on the occurrence of, in the 

 pancreatic fluid and contents of the 

 intestine, 124. 



United Kingdom, on the emigration of the 

 last ten years from the, 183, 



United States, on the meteorology of the, 

 42 ; on the geology of the, 95. 



Ure (J. F.) on the navigation of the 

 Clyde, 211. 



Urn, on a Roman sepulcral incription on 

 an Anglo-Saxon, in the Faussett col- 

 lection, 145. 



Valpy (Richard), effect of the war in 

 Russia and England upon the prin- 

 cipal articles of Russian produce, 195. 



Valve, india-rubber, for drainage of low 

 lands into tidal outfalls, 210. 



Van Diemen's Land, on some watei'-co- 

 lour portraits of natives of, 142. 



