INDEX. 



451 



Condenser for air, i. ItS Crayon painting, ii. 409 



Copal, ii. 129 — method of Cupellation, ii. 215 



dissolving it, ii. 24'3 Currying, art of, ii. 211 



Copper, ii. 109 Cyanogen, ii. 74 

 Cotton, bleaching of, ii. 170 



D. 



Dip, of the magnetic needle, 



i. 403 

 Discharge, electrical, i. 339, 



345 

 Distillation, ii. 8. 

 Diving bell, i. 159 

 Divisibility of matter, i. 2 

 Drawing, "ii, 342—348 



--, implements for, ii.342 

 — , the figure, ii. 388 

 — , landscapes, ii. 400 

 •, mechanical, if. 403 



Drawings, methods of copying, 



ii. 404 

 Dyeing, ii. 178 



E. 



Earth, considered as a planet, 

 i. 433 



Earths, ii. 86 



Echo, i. 229 



Eclipses, i. 441 



Elain, ii. 139 



Electricity, i.319 — considered 

 chemically, ii. 35 



, atmospheric, i. 346 



• , miscellaneous ex- 

 periments in, i. 352 



, animal, i. 373 



, medical, i. 375 



Electrometer, i. 326 

 Electrophorus, i. 344 

 Elementary substances, ii. 2 

 Engraving, ii. 419 

 Epsom salt, ii. 89 

 Equator, i. 415 

 Etching on copper, ii. 423 

 — — — on glass, ii. 442 

 Ether, ii. 136 

 Euchlorine, ii. 64 

 Evaporation, ii. 8 

 Extension, i. 5 

 Eye, description of, i. 249 



Fecula, ii. 127 — 148 

 Fermentation, ii. 134 — 150 

 Fibrin, ii. 138 

 Filtration, ii. 7. 

 Fine arts, ii. 342 

 Fireworks, artificial, ii. 329 

 Flax, ii. 161 

 Fluidity, i. 6 

 Fluates, ii. 78 

 F'luoboric acid, ii. 78 



Fluoric acid, ii. 77 

 Fluorine, ii. 77 

 Fluor spar, ii. 77 

 Fly wheels, i. 62 

 Fountain, i. 178 

 Friction, i. 57 

 F\dling, ii. 172 

 Fulminating powder, ii. 321 

 Furnaces, ii. 18 



Galvanism, i. 381 

 Gas, ammonical, ii. 85 

 Gas, definition of, ii. 26 



G. 



Gelatine, ii. 137 

 Geometry, practical, ii. 348 

 Gilding, ii. 261 



G G 2 



