• 



INDEX. 



ACHROMATIC Telescope, large, of the Royal Observatory at 



Paris, 286-288 

 Aerolites, composition of,, notice of, 185 



Air of marshes bordering upon the sea, insalubrity of, 401-403 

 AlcohoU action of lime on, notice of, 180-181 

 — — , rectification of, at common temperatures, 400 

 Algebraical and fluxional notation, remarks on the principles of, 



321-325 

 America, Tyrant Shrikes of, observations on, 267-285 

 Amethyst, globules of water found in, 1S7 

 Analysis of Scientific Books, 113-160, 3'29-356, 374 

 Anato?nical preparations, notice on the preservation of, 200 

 Ancient glass, composition of, 180 

 Animal system, effects of lightning on the, 404 

 Arago, (M.) on the polarized state of halo light, 167-168 

 Anti' attrition preparation, effects of an, 375 

 Antimony, combinations of, with chlorine and sulphur, 396-398 

 Argonauta argo, notice of, 1S9 

 Arsenic, test for the presence of, 398, 399 

 Artificial gold, notice of, 399 



Astronomical and Nautical Collections, 94-112, 30S-328 

 Atmosphere, variation in the composition of, 393 

 Attraction, manifested at sensible distances by solid surfaces, 



moistened by and immersed in a liquid, 379-383 



Babbage, (C, Esq.) and J. F. W. Herschel, Esq., account by, of 

 M. Arago's experiments on the magnetism developed during 

 rotation, 355 



Balance, sensible one described, 161, 162 



Barometer, on one of the causes of the movements of the, and of 

 the south and west winds, 14-21 



Beans, ancient, recent vegetation of, 189 



Beavers, on the habits of, notice of, 188 



Ben Lomond, meteoric appearance of, 1S2, 183 



Berkshire, county, U. S., notice of the flexible marble of, 185 



Bizio, (M.) experiments of, on the black principle of sepia, 



Black, (Dr.) his sensible balance, 161-162 



Bladder, instrument for destroying stone in the, description of, 

 21-24 



Blue matter from urine, notice of, 409-411 



Brande, (W. T., Esq.) outlines of geology by, being the sub- 

 stance of a course of lectures delivered at the Royal Institution, 

 24-40, 235-259 ; analysis by, of two mineral waters from 

 springs in Windsor Great Park, 264, 266 



