I K D EX. 



bomes of the ancient Romans, 147— 

 Deficient in his description of the leaf- 

 stalk, 179— On potatoes, 204— On 

 the causes which influence the cli- 

 fection of the growth of roots, 370 



L. 



Lancaster, Mr. J. 273 



Land, waste, improved, 275 



Laplace, M. his experiment* on sound 



produced in vapour, 171 

 Lasalle, Dr. 383 

 Lavoisier, M.38S " 

 Laugier, M. his chemical examination 

 of the yellow resin of the xanfhorroea 

 bastilis, and of the resinous cement 

 employed by the savages of New- 

 Holland to fix the stone of their 

 hatchets, 310 

 Leaf stalk of plants, 1 79 

 Le Breton, M. 10 



Lectures, medical and chirurgical, in 

 London, 78, IfiO— In Bristol, 79— 

 At the Scientific Institution, 2as5— 

 At the Surrey Instithtion, 239 

 Leghorn hats, substitute for, 273 

 Leslie, Professor, 193 

 Lester, Mr. W. his description of a ma- 

 chine for washing potatoes and oiher 

 esculent root.';, for feeding cattle, 335 

 Lever, fundamtntal property of the, 



280 

 Lewis, 294 



Leybourn, Mr. T. 240. 

 L'Huilier, M. 217 



Light, reflected, a newly discovered 

 property of, 9-5 — Repulsive forces 

 that act on it, 161— Phoenomena of, 

 192 — Inclination of plants towards, 

 144 

 Lime, new varieties of the carbonate 



of, 189 

 Lydiatt, Mr. E. 239 



M. 



Machine for washing roots, 336 

 Machinery, instrument for ascertaining 



the velocities of, 121 

 Malus, M. «» » property of reflecteil 



light, 95— On a property of the re- 

 pulsive forces that act on light, 161— ■ 

 His inquiries respecting polarised 

 light, 192 

 Manufactures, lectures on, 240 

 Marcet, Dr. his experiments on zeolite, 



135 

 Marshall, Mr. G. his new method of 

 constructing sash-windows, so as to 

 be cleaned or repaired without the 

 necessity of any person going on the 

 outside of the house, 129 

 ISIartin, M. his experiments on th« 



transmission of sound, 107 

 Martins and swallows, migration of, 



213 

 Martres, M. his process for preparing 



pure phosj)horic acid, 383 

 Mathematical questions in '* the Lady'ft 



Diary," 240 

 Mathematicus on a remarkable analyti- 

 cal anomaly, 209 

 Maynard, Mr, 27 

 Mead, Dr. 209 

 Metallic filings, machine for separating, 



127 

 Metals coated with platina, 292 

 Meteor of May, 1811, account of, 216, 



218 

 Meteoric stones, which fell in the year , 



1810, L'jS 

 Meteorological Journal, for July and 

 August, 64 — For August and Sep- 

 tember, 142— For Se|)tember ami 

 October, 236 — For October and No- 

 vember, 308 

 Meteors, called shooting stars, observa- 

 tions on the peculiar appearances of, 

 131, 285 

 Migration of swallows, 213 

 Mineral water, se.e Water. 

 Minium, native, addition to the account 



of, in a former volume, 137 

 Moncan, M. 312 

 Money, Mr. 175 

 Mons, M. A''on, his distinction of rain, 



63 

 Moore, W. Esq. on tke destruction of 



