. The Philosophical magazine; a journal of theoretical, experimental and applied physics . eenwich. 1S20. Hour A. T. Barom. Wind. November 10^^ 8*^ 29-826 47 42 9 29-633 47 43 10 29640 46| 44 11 29-644 4o 45 12 29-639 46 45 December 11> S 29523 51 49 9 29-526 51 49 10 29-531 51 50 w. 11 29-53S 51 51 12 29-540 8N 51 12 51i The 468 Barometric Observations. The barometer is an excellent portable one, and with the at-tached thennonicter Jiangs on the landing place of a first flight ofstairs, with the surface
. The Philosophical magazine; a journal of theoretical, experimental and applied physics . eenwich. 1S20. Hour A. T. Barom. Wind. November 10^^ 8*^ 29-826 47 42 9 29-633 47 43 10 29640 46| 44 11 29-644 4o 45 12 29-639 46 45 December 11> S 29523 51 49 9 29-526 51 49 10 29-531 51 50 w. 11 29-53S 51 51 12 29-540 8N 51 12 51i The 468 Barometric Observations. The barometer is an excellent portable one, and with the at-tached thennonicter Jiangs on the landing place of a first flight ofstairs, with the surface of the mercury in the basin 12 feet fromthe ground, in a free circulation of the air, and where neitheris affected by any artificial heat. Yours most respectfully,Mr, Tilloch. Thos. Sqiure. To Mr. Tilloch. Leighton, Dec. 18, Sir,—I send you the barometrical observations made atthis place, on Monday the 11th insi., from a standard baro-meter made by the late Mr. Ramsden. 9101112 Bar. 29-57729-59829-62229-64729-634 Theratt Wind. Bar. 81^ 9101112 29-38329-38429-4002940129-400. I have been also favoured with the observations of ,at Bu&hy Heath, as below: There is not that regular conformity in the motion of the twoinstruments that might have been expected, but this apparentanomaly ought to render us more dilisient in search of the do not know how far i\\e equal pressure of the atmosphere hasbeen proved to extend ; but if gentlemen will be careful to notethe height of their barometers at the commencement of eachhour from 8 to 12 on the second Monday of January 1820 andfollowing months, and communicate the result to the publicthrough your Magazine, it will enable us to know how far formerobservations of this nature ought to be relied upon for accuracy,and may lead us to discover the necessary corrections to be ap-plied to past and future observations. There mav be some trifling difference in the height of the scale,upon instruments made by di
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