INDEX. 



Slargraff's discovery of sugar in Tege- 



labks, 311 

 Maskelyne, Dr. on lo?-lines, 249 

 Massey, Mr. E. his description and use 

 of a sea log and sounding machine, 

 245 

 Mathematical problem, 1 

 Meionite, remarks on, 191, 199 

 Mendham, Mr. his description of a new 

 * watch escapement, 178 

 Metallic sulphurets, analysis of, 142 

 Metals, new, 68, 159, 231, 3G3 

 Meteorological Journal, for August, 79 

 —For September, 160— For Octo- 

 ber, 240 — For November, 518 

 Meteorological observations", 383 

 Mineralogy of East Lothian, 237 — Of 



the Shetland Isles, 383 

 Mirbel, on the structure of seeds, 214: 

 Mirbd's theory of the convertibility of 



bark into alburnum, examined, 9 

 Mobs, M on meionite, 191 — On feld- 

 spar. 196 

 Mcivre, De, on the doctrines of chance, 



67; see also 121, 204, 210 

 Moll, Baron, 192 



Moore, W. Esq. on the problem re- 

 specting the radius of curvature, 256 

 Madge, Mr. his escapement for watches, 



179 

 Muffles for chemical purposes, im- 

 proved, 273 

 Murdoch, Mr. W. on the applicatioii 

 of the gas from coal to economical 

 purposes, 94 



N. 



Neve, Capt. R. J. his testimony of the 

 performance of Mr. Massey's patent 

 sounding machine, 255 



Neuman's experiments to obtain a me- 

 tal from quick-lime, unsuccessful, 

 367 



Nichols, Mr. J. 53 



Numbers, polygonal, 118^ 241 



Ogilby, Dr. Jame";, on the mineralogy 

 of East Lothian, 237 



Opium, tincture of, reeommenied for 

 diseases of cattle, 157 



Opsimath, letter from, expressive of 

 doubt as to the validity of De Moi- 

 vre's doctrines of chance, 66 — An- 

 swered, 121, 205— Second letter from, 

 210 



Oxalic acid, 14, 86 



Painting after the ancient Grtclan man- 

 ner, 81 



Parsons, A. his account of a pheno- 

 menon that occurred atBussora, 77 



Pearson, Dr. his experiments on pota- 

 toes, 72 



Pendulum, improved, 53 



Phenomenon at Bussora, 77 



Playfair, Professor, 238 



Polygonal numbers, 118, 241 



Pontin, M. G/3 



Poppies, cultivation of in England for 

 obtaining opium, 158 



Potato, on the fecula in different vari- 

 eties of, 71, 182 



Priestley's history of electricity, 280 



Problem in mathematics, 1 



Proust, Professor, on grape sugar, 306, 

 31C— On metallic sulphurets, 142 



Radius of curvature, observations on 



the problem of, 256 

 Ramsay, Mr. on Mr. Mendham's nevr 



watch escapement, 179 

 Red dye of Adrianople, 44 

 Refraction, method of discovering the 



quantity of, 201 

 Ribblesdale, Lord, his account of a 



mine of zinc ore, and its application 



as a paint, 12 

 Ruprecht's experiments on the metallic 



nature of earths, 68, 233, 364, 367 



Saccharine matter of Indian corn, che- 

 mical examination of, 153 



Sailing 



