476 



INDEX. 



Smithson on Vegetable colours, S8 



Sonetits, Uarned.Sl, 139, 221,311,390, 

 464 

 SUam- engines in Coruwall, 65, 147, 

 228,314,391,465 

 Sugar, to detect by yeast, 148 



Tatum on electricity, 438 



Terrestrial phenomena, 1 96 



Thames. Ou navigation of, 388 



Thebes. Discoveries in, 241 



TAenard on chemical analyses, 381 



Thermometer employed as a hygrome- 

 ter, 243 

 Timber. On strength of, 214,276 

 Tredgold on geolog. principles, 36; on 

 strength of timber, 214, 276; on 

 pressure against revetements, 401 

 Tngr.nomelrical survey of Tuscany, 384 

 Tristan da Cunha. Island of, 123 



Tritttm^s apparatus for distillafjon. SI 5 

 TurreU's drawing-board and T square, 



414 

 Upington on music, 38, 181, 521 



Ure on chlorine, 58 



Farley (C.) on copal varnish as a ve- 

 hicle for colours, 289 

 Fitrmsk, Cnpal, a vehicle for colours, 



289 

 Vulgar fractions. Goodwyn on, 137 

 ff'nler-spvitls. On, 103,236,313 



jyemer. On geolog. principles of, 36 

 JPheel carnages improved, 152 



Whirlwinds. On, 103 



ffiebeking''s hydraulic architecture, 387 

 IVynn on enamel colours, 263 



YbiambuL Temple of, 24 1 



young's survey of Yorkshire coast, 206 

 Zircon found in Sutherland, 232 



END OF THE FIFTY-FIRST A'CLUME. 





PnnUi by R, and A. TaytOTy Shoe- Lane, London. 



