INDEX. 



A. 



A. on the best methods of destroying 

 the insects which infest dwellings and 

 furniture, S24 



Abildgaard, M. on a species of menac, 

 139 



Abroma augusta, an useful vegetable in 

 India for the manufacture of cordage, 

 2G0 



Acoustics, experiment in, called the 

 Invisible Girl, exhibited in London, 

 69, 119 



Agaphi, Demetrius, on turquoises, 183 



Agave tuberosa, of India, 232 



Air, currents of, 173 



Alburnous vessels of trees, inverted ac- 

 tion of, 60 



Alderson, Dr. on the methods of improv- 

 ing poor soils, where manure cannot 

 be had, 360 



Alexander, Dr. on the effects of opium 

 on the living system, S46 



Alum mine near Glasgow, 233 



Anatase of Hauy, probably a variety .of 

 rutile, 129 



Anderson, Dr. his " Agricultural Re- 

 creations," 152 



Angles, small, three modes of mea- 

 suring, 23 



Antis, Mr. his improved door latch de- 

 scribed, 15$ 



Apricots, improvement in the culture 

 of, 144 



Argil, electrical experiments with, 103 



" Art of Universal Correspondence," 

 published in 1802, notice of, 204 



Ashani, Roger, his curious observations 

 on the wind, 171 



Astrometer for determining the appa- 

 rent situation of the stars, &c, 320 

 Vol. XVL 



Astronomical circle, description of an, 

 200 



Astronomical intelligence, 239 



Atmosphere, state of water in the, 4 

 —Proportion of its constituent parti- 

 cles, 75 



Ausein, Rev.G. his apparatus for trans- 

 ferring gases over water or mercury, 

 377 



Bukerian lecture on electricity, read be- 

 fore the Royal vSociety, 79, 



Balance for a time-keeper, Mr. Hardy's, 

 120 



Band-wheel to regulate the velocity of 

 machinery, 126 



Banks, Sir Joseph, 73— Letter to, on 

 the marine barometer, 107, 173'«— — 

 Ditto, on a discovery of native mini- 

 um, 127 — His account of the stratum 

 incumbent on the columns at Staffa, 

 290 



Bardsley, Dr. 160 



Barometer, marine, observations on du- 

 ring the examination of the coasts of 

 New Holland, &c. 107, 173 



Barytes, electrical experiments on, 101 



Basalt, origin of, 277 



Bason, mineral, in the counties of Mon- 

 mouth, Glamorgan, Brecon,, Caer- 

 marthen, and Pembroke, 381 



Beavers in Westphalia, 239 



Benzelius on the use of lichen among 

 the Laplanders, 211 



Berthollet, on the power of chalk to de- 

 cern pose salt, 371 



Biberg's Economy of Nature, S67, 372 



Black, Dr. 233 



Blacking for leather, 237 



b Bolt 



