1816. Wind. Max. Min. Med. Max. Min. Med. Hygr. at 9 a. m. Rain. The observations in each line of the table apply to a period of twenty-four hours, beginning at 9 A. M. on the day indicated in the first column; A dash denotes, that the result is included in the next following observation. 54 39 46.5 32 43.0 53 550 29 39.0 53 1 30 43.5 55 49.5 74 5 44 54.0 54 72 REMARKS. 20. Warm forenoon: Fourth Month.-19. Cloudy, a.m.: cool dry wind. about noon, a murmuring S. wind, with traces of a solar halo. 21. a. m. Obscurity above, with rudiments of the Cumulus beneath it: after this, thunder clouds in the S. horizon: rain followed these appearances, and continued during most of the forenoon: swallows appeared to-day: the hygrometer went to 70°. 22. Fine: Cirrus, Cirrocumulus, &c. 23. Very fine day; blue sky, with large Cumuli, and the lighter modifications above. 24. Warm forenoon: a smart easterly breeze, p.m.: the hygr. went to 359: Cirrus predominated, 25. Brisk wind at N. E. and S. E: the sky clear and pale. 26. Fine day: steady breeze. 27. Much dew: clear morning: then Cumulostratus, with a breeze. 28. Dew: clear morning: Cirrostratus appeared, passing afterwards to Cumulostratus: at sun-set, Cirrus appeared above. 29. Little or no dew: the sky full of a confused mixture of Cirrus, Cirrocumulus, &c.: some drops of rain, followed by more in the night. 30. Overcast: dripping. Fifth Month.-I. Fair. 2. Cloudy at intervals, with a few drops: much Cirrostratus to the westward. 3. Rain at intervals, chiefly in the night. 4. Completely overcast, a. m. with Cirrostratus: a wet day. 8. Very rainy, p.m. after a little hail about noon. 9. A little rain, a. m. : some sunshine, p.m. 10. Rainy the whole day. 11. Fair in the evening. 13. A little rain, p. m. 17. Very fine day: cool evening. 18. Fair, but cold. RESULTS. Prevailing Winds Easterly in the fore part, and Westerly, with rain, in the latter part, of the period. During this period the leafing of the more forward trees has proceeded, for the most part, under the retarding influence of cold breezes. Twice, the temperature having risen for a few days, the accumulation appears to have gone off in local thunder-storms. In travelling on the 17th inst. from Bristol to Southampton, I had the rare opportunity of observing, from a convenient distance, the gradual formation and discharge of a prodigious Nimbus, forming part of a series of clouds which for several hours continued to pour a flood of rain, accompanied by large hail, thunder, and lightning, on the country about Andover and Winchester. As the sun, which was declining, strongly illuminated these clouds, they reflected a lively copper tint above the indigo ground which marked the heavy rain: the electrical light which fills the striking cloud at each discharge was, therefore, with the stroke itself, imperceptible; as was the thunder, from the distance: and the phenomena I had to supply (as to certain evidence) from subsequent information as we passed over the tract thus plentifully irrigated. TOTTENHAM, Fifth Month, 24, 1816, L. HOWARD. INDEX. Acharius, Dr. on two new genera of Acids, compound, 434. Adam's Peak, journey to the top of, Adhesion, experiments respecting, 14. Aikin, Mr. Arthur, on the gravel beds Albumen, comparison of, with gluten, Alcohol, composition of, 243. Ammonio-muriate of rhodium, how ob- Angelica archangelica, analysis of, 60. Aphonia, case of complete, cured by Arenaria, subdivision of the genus, 394. Arragonite, analysis of, 60. Asp, 463. Astronomy, improvements in, during Atmosphere, on the dispersive power Atoms of bodies, on the weight of, 343, B. Babbage, C. Esq. on the calculus of Babbington, Mr. on the basaltic co- Barley, depth at which it will germi- Barnes, Rev. Archdeacon, on the car- Barometers with iron tubes, on the dis Basaltic columns of Salsette, 309. Berger, Dr. on an unknown scapula, Binomial theory, demonstration of, Biot, M. on the polarization of light, 4. Blow-pipe, new, 367. Boa constrictor, excrements of, ana- Bodies which depolarize light, list of, Bogg, Edward, Esq. on the geology of Boiler of the steam-engine, on the con- Brewster, Dr. experiments by, on the Broguiard, M. on entomolites, 314, 367. Brown, Mr. Robert, on seeds, 307. curring above the chalk, 308-on Burrhard, Mr. Robert, new hygro- C. Campbell, Mr. John, on the upright Carbonic acid in urine and blood, 56. Carolan, M. W. on the bird fly, 366. Cassini, M. Henri, on synanthereæ, 392, Cauchy, M. on definite integrals, 150. Cerin, 49. Chabanne's, Marquis de, method of ven- Chapman, William, Esq. on the pro- Chemical action of bodies on each Chevreuil, M. on fat bodies, 58-on 433. Chlorine, whether a simple body, 272 Chromate of iron, analysis of, 63. Chyle, analysis of, 234. Cinchonin, experiments on, 47. Cinnamon stone, description of, 242. 69. Colchicum autumnale, effects of, as a Combustion, apparent, explained, 439. Compositæ, observations on, 229. Copland, Mr. introduces the new mode Cordier, M. analysis of green-stone, by, Coxe, Dr. Redman, speculations, by, Criopyrite, account of, 82. Crystals, on the formation of, 386. Current to the west of Scilly, on, 130. Cypher, new, proposed, 105. D. Dacosta, Mr. on native iron, 387. -, Sir H. on a new method of pre- Delambre, M. theoretical and practical Desvaux, M. on the subdivision of the Diamond cutting, account of, 459. Dip of the magnetic needle, 12. Donegal, county of, physical geography Donovan, Mr. on sorbic acid, 37-on Eatable nests analyzed, 57. Electrical machine, plate, improve- Electricity, improvements in, during Elk, horns of, on, 389. Ellipse in a certain position appears Emberiza cirlus, on, 389. Epidermis of the foot analyzed, 420- Esmark, Professor, on a new ore of Ether, composition of, 243. Extractive, on, 47. Eye, black pigment of, analyzed, 54. F. Fat bodies, experiments on, 58. Fermenting heat, query respecting, 469. Ficus carica, juice of, analyzed, 51. Friction, heat from, 241. G. Galloway, mineralogical observations Galvanic and nervous influence, iden- Galvanism, influence of, 161-proposed Gases, on the absorption of, 21, 215. Gay-Lussac, M. on cyanogen and hy- Georgian planet, satellites of, 2. Glass, mode of cutting, 237-tears, Gluten, comparison of, with albumen, Gmelin, M. Leopold, analysis of the Gramina, new classification of, 394. Gregor, Rev. W. analysis of green uran Grierson, Dr. on the mineralogy of Guadaloupe, ancient inhabitants of, Gunpowder, new mode of making, 84. H. Hansten, Mr. on the magnetism of the Harvey, Mr. mathematical theorem de- Headach, curious cause of, 320. 24. Home, Sir Everard, physiological Humboldt, Baron Von, travels of, 143 Huron, lake, rocks in, 242. Hygrometrical observations in the At |