4^16 



INDEX. 



Singer on electric column, 11; on 



Kelis's esper. 161; on Van Mons's 



theory. 232 



Sope. On, 134 



Sou'tily's fossil shells, 211; medicinal 



plants, 312 



Specific gravilu of the human body, 



248, 392 



Spencer on gravity of human body, 



248, 392 



Spermoccti. Exper. on, 134 



Sparzlieim's physiology of the brain, 



68 



Steam. Cautions respecting, S74 



Steam-eiigi'ies. Work done h)', with a 



given quantity of cosls, 116, 236, 



319, 398; Woolf's latest patent for, 



120; valves of, 297 



Stephenson's safe-lamp, 453, 470 



Stuart on Seppings's improvement in 



ship-building, 352 



Suet. Experiments on, 37,130 



Telescopes. Construction of, 122 



Travels in Africa^ 74 



Tvrkeys. On greasi of, M 



lyphiiifevfr. On checking, 290 



Vaccinolyim Rep'>rl, 62 



ran Mons. Letters from , 7 1 , 1 52, 230, 

 231, 313, 397 

 Fascidar and extra- vascular sidstances. 



On, 

 Foyoge nf discovery , 236 



ffalker's chemical philosophy, 208, 

 3'27, 43( 

 Water. On diminished volume of, by 

 cold, 417 



TJ'nx, the vehicle for colours in en- 

 caustic painting, 23 

 H ogiits and measures. On regulating, 

 113 

 U'licel carrioges. Exper. on, 249 

 Wire-worm. To destroy, 69 

 IFuliaslon on prussic andchyazic acids, 

 365 

 Wot>d. On strength of, 391 

 Wool. Sope of, 135 

 Woolf's patent l-oiler. On, 43; steam, 

 engine, 120, 297, 460,462 



END OF THE FORTY-SIXTH VOLUME, 



pn.lNTKD P.T ?,ICn/\RD AND AIlTntll TAVL^'it 

 SIIOrw-LANF., LOXDON'. 



A t B n K I Fl/IMTIAM. 



