ARTICLE IX. Mean Results, &c. of various Meteorological Registers for the Year 1823. 1. By Mr. M. P. Moyle, at Helston, Cornwall. July August September. 29.6010 October.. November. December. 29.8268 Jan.-The snow continued 12 days, which is much longer than usual. Feb.-A very wet month. March 4 and 5, very stormy. The gusts of wind were extremely sudden, with wind to the NW. April. On the morning of the 5th, the wind changed suddenly from the SW to NE, and continued very boisterous till noon: 26. Heavy hail shower, with distant thunder. May. A cold month, except the few last days, which were remarkably fine. June. Very cold. Fires required by many in the evenings : some thunder. July. Remarkably cold, wet, and boisterous; scarcely two days fine successively. August. A wet month; much thunder and lightning on the 22d and 24th; about two inches of rain fell in the morning of the 24th in the course of six hours. Oct.-The wind rose suddenly in the evening of the 30th to a perfect hurricane, which continued throughout the night. The barometer fell about 1 inch in about 24 hours. Dec. 29.-Much lightning. 2. By Mr. Edward Collins Giddy, at Penzance, Cornwall. Barometer, 1893. Highest, Dec. 7, Wind, NW. 3038; Lowest, Feb. 2, Wind, NE. 28-45.-Day and Night Thermometer. Highest, May 29 and July 20, Wind, S. 70°; Lowest, Jan, 16, Wind, NE. 27o, قد 4. By Mr. James Stockton, at New Malton, Yorkshire. .... Highest observation, Nov. 10. Wind NE. Range of the mercury... Mean annual barometrical pressure Greatest range of the mercury in October. Mean annual range of the mercury. Spaces described by the mercury Six's Thermometer. .... Greatest observation, May 7. Wind, variable. Greatest range in May. Least range in February 22.000 Mean annual range . 29.918 Winds. Days. Pressure. The mean annual barometrical pressure (notwithstanding the extraordinary wetness of the period, is greater than that for many years past. Temperature. The mean annual temperature fully confirms what has been before advanced, that wet summers are generally cold; the whole of the monthly means, with the exception of May and December, are unusually low. Indeed the actual deficiency as to the annual amount exceeds 24 degrees. Winds. These nearly agree with their respective numbers in 1822, and what is more strikingly remarkable, those of the SW exactly correspond. *Rain.-As to rain and snow, the amount is nearly unprecedented, and for the last three years it has been rapidly increasing. ARTICLE X. On the Effects of transmitting the Electrical through other Fluids. By Mr. C. Woodward, (To the Editor of the Annals of Philosophy.) March 12, 1924. As every subject connected with electrical science is daily assuming a more important feature, the following experiments and observations may not be uninteresting to some of your readers. Place a piece of glass on the table of the universal discharger, and bring the pointed wires nearly in contact upon the surface of the glass; over the intersection formed by the wires, strew some loose gunpowder, and pass through it the charge of a jar containing about a square foot of coated surface, when it will be found that the powder will be invariably dispersed without inflammation. Take a glass tube six or eight inches long, and about a quarter of an inch in diameter, fill it with water, and insert a cork at each end; through the corks pass pieces of wire so as to form a conducting communication with the water; place some loose gunpowder on the glass of the universal discharger as before, insulate the tube, and let it form part of the circuit; pass the charge through the water, and the gunpowder will be inflamed. The small degree of intensity of charge required to produce the inflammation of gunpowder, when transmitted through a tube of water, is surprising; as the discharge of a quart jar indicating only an intensity of from 10 to 15 degrees is generally sufficient, and there appears to be little or no difference in the effects of tubes varying from 3 to 18 inches in length. In prosecuting my inquiries to ascertain the cause of this sin gular effect, I found that the charge of a jar, which, when transmitted by good conductors, was sufficient to produce the fusion of 12 inches of iron wire, did not affect a single inch of the same wire, when passed through the tube of water; from which I concluded, that the intervention of the water tube, must have produced or prevented some mechanical effect, I then pasted on a board, about three feet long, a narrow slip of tin foil, in which, at equal distances, four intersections, about one-eighth of an inch each, were made. I insulated the board, and placed over one of the intersections some loose gunpowder, and over each of the others six or eight wafers. On transmitting in the common way a charge through the tin foil, the powder was scattered, and the wafers blown three or four feet from |