INDEX. 



Xmrie, col. 47 



Ink, vegetable, that cannot be oblite- 

 rated, 154, S20, 343 



— — , various methods of restoring the 

 traces of, when obiiteratcd, 339 



, improvements in the. manufac- 

 ture of, 341 



Inscriptions on tiles, deposited under 

 public buildings, for the information 

 of posterity, 85 



Instrument for reducing or enlarging 

 plans, 179 



Iron mine of Cogne, supposed to be the 

 richest in the world, 293 



Iron water pipes, on the use of, and 

 mode of securing tlieir joints, 136 



J. 



Jacksonian premiums, distribution of, 

 320. 



Jameson, Professor, on the possible ex- 

 istence of coal in the depositions of 

 red sand stone in Scotland, ld2— On 

 tho Iceland crystal, 236 



JefFery, Mr. Wm. his expanding har- 

 rows, for cleansing foul land, and 

 harrowing in seeds, 302 



J. M. answer to, 159 



Jussieu, his new order of plants, 158 



Justus, reply to his remarks on potas- 

 sium, sodium, &c. 129. 



K. 



Klaproth, Dr. his examination of . na- 

 trolite, 286 



Knight, T. A. Esq. on the term of life 

 and strength of a plant, 5. — His forc- 

 ing house for grapes; and best me- 

 thod of constructing them for other 

 fruits, 109— His improved method of 

 cultivating the Alpine strawberry, 

 2l4«— His account of a mule between 

 the ass and female zebra, 127 



^ L. 



^ablUardipje, M. on a new plant of the 



palm kind, 158 

 ]Lagrange, M. on the stability of the 



planetary system, 72 



Lamouroux, M. on marine plants, 139 



Laplace, M. on the motion of the moon, 



75— His coefficient for barometrical 



measurements preferable in some 



cases to that of Ramond, 77. 



Larches, description of, 209.— Fructi- 

 fication of, 297 



Leach, Mr. W. E. on the arrangement 

 of the diptera tribe, 152 



Leblanc, M. o« the domestication of 

 the vicugna of America, 315 



Lee, H. P. Esq. bis newly invemel 

 thrashing machine, 274 



Lcgendre, M. his new theorems a« 

 fluxions, 75 



Leslie, Mr. on the transmission of Beat, 

 solar and culinary, through transpa- 

 rent mediums, 260 



Light, propagation of, 78 



Lightning, proposition for the preven- 

 tion of damage by, C05 



Life boat, made of a common ship's 

 boat, 86. 



Lime, cohesion of, with mineral, ve- 

 getable, and animal substances, 18 1 



Lily, water, germination of, 237 



L. O. C. on the scale of the barometer, 

 105— On the construction of an air 

 pump for procuring a perfect va- 

 cuum, 107 



Lunar tables, 75 



Lyall, Mr. R. the sensible perspiration 

 of the diclamnus albus, 66 



Lydiatt, Mr. E. on the different force* 

 with which tubes, bars, and cylin* 

 ders, adhere to a magnet, 34. 

 M. 



Mackenzie, Sir G. on the rocks of Ice- 

 land, 151 



Magendie, M. on the poison of the 

 upas, 314 



Magnetism, its effects on tubes, bars, 

 &c. 34 



Mariotte's experiment on the current 

 of the Seine, found to be correct, 71 



Mathematicus on the defective algo- 

 rithm of imaginary quantities, 254 



Mathieu,M.ou the figure of the Earth, 77 

 Mayo ock. 



