378 INDEX. 



surface, and different strata, 79-92, 186-119 ; obserrations on 



the deposits of gravel, 196-198 

 Gilleron (M.), expL^riments of, on capillary attraction, 134< 

 Glasgow, number and power of the steam-engines at, 328 

 Glass, for telescopes, account of M. Guinand's experiments for 



making, 248-258 ; on the colour of glass, as affected by light, 



341 342 

 Gmelin (Professor), on the new production of anhydrous sulphuric 



acid, 345, 346 

 Goitre, observations on the cure of, 169, l69 

 Gold, native, of North Carolina, observations on, 364 

 Gompertz (Benjamin, Esq.), notice of the researches of, on the 



nature of the functions of mortality, 8^c., 279-281 

 Goring (Dr.), improvements in microscopes, suggested by, 132- 



134 

 Granville's (Dr.), description of an Egyptian mUmmy, analysis 



of, 261-263 

 Gravel deposits, observations on, 196-198 

 Gray (Mr.) observations of, on the artificial production of Peafls, 



167, 168 

 Griffiths (Mr. T.), on the hygrometric properties of ittsoluble, tttid. 



difftcultly soluble compounds, 92-96 

 Guinand (M.)> biographical account of, and of his optical discove- 

 ries, 244-253 



Hair (human), permanency of, 168 



Hall (Dr. M.), observations of, on the physiology of speech, 8-16 

 Harvey (George, Esq.), remarks of, upon the returns of population 

 in Ireland, 217-219 ; tables of the number of pupils receivings 

 instruction in that country, with observations on the state of 

 education, 220 227 ; on the distribution and changes of the 

 magnetic intensity in ships of war, 333-335 ; on some improve- 

 ments in naval architecture, 335, 336 

 Hawkins (Mr.), notice of his mode of preparing emery, 135, 136 

 Hay, plant of northern India, description and uses of, 1-7 

 Heat and light from terrestrial sources, observations on, 45-61, 



213-216 

 Henderson, (Thomas, Esq.), remarks of, on the determination of 

 the longitude, from observations of the moon's right ascension, 

 109-115; and on the discordance of the lunar observations 

 made at Greenwich and at Paris, 116; tables by, of third and 

 fourth differences, for interpolating the moon's place, 287-292 ; 

 corrections of the catalogue of zodiacal stars, 293 

 Hennell (Mr. H.), on the production and nature of oil of wine, 



96-98 

 Henry (Dr. Wm.), on the action of finely-divided platinum on 

 gaseous mixtures, and its application to their analysis, l01-lo:ii 



