Observations on the climate of Penzance and the district of the Land's End in Cornwall : with an appendix containing meteorological tables, and a catalogue of the rarer indigenous plants. Read before the Penwith Agricultural Society, and published by request of the members / By John Forbes.

  • Forbes, John, Sir, 1787-1861.
Date:
1821
Catalogue details

Licence: Public Domain Mark

Credit: Observations on the climate of Penzance and the district of the Land's End in Cornwall : with an appendix containing meteorological tables, and a catalogue of the rarer indigenous plants. Read before the Penwith Agricultural Society, and published by request of the members / By John Forbes. Source: Wellcome Collection.

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    &4 OBSERVATIONS ON THE CLIMATE OE PENZANCE* in the Literary Gazette;—those for Derby, from Mr. J. T. Swanwick’s, in the Derby Mercury. Penzance. Edmonton. Derby. Absolute max. - - 56o. _ 58°. — 540. 95 0 __ 220 — 25 ° Mean of max. — 50°. — 47o. — 45.9 0. -*■— min. - 440. 35o. — 35.9». Mean of both, 470. — 41o. _ 40.9 °. Extreme monthly range 210. — 36°. — 290. f Max. 13o. — 25o. — Diurnal Range < Min. lo. — 3o. — l . Mean 60. — 12°. — I also subjoin a Table of the mean morning tem¬ perature of the three coldest months at Nice, Pisa, and Rome, (extracted from Dr. Clark’s late excellent ■ work on the climate and diseases of France and Italy,) compared with that of Penzance for the same years. This statement will show the difference of temperature between these places and Penzance to be much less, I think than might have been antici¬ pated from considering the difference of geographi¬ cal position; certainly much less than had been con¬ ceived by myself before examination. Farenheit’s Thermonn ter. Time of ob¬ servation. Dec. Jan. Feb. Mean 1 ex¬ treme | range Absolute Max. | Min. Nice, 3 yrs. (1815-1817) sun-rise 44 44 47 45 33 63 30 Pisa, 3 yrs. (1814-1816) sun-rise 42 40 43 41 40 60 20 Rome, 3 yrs. (1815-1817) 7 a. m. 42 41 43 42 37 64 27 Penz. 3 yrs. (1815-1817) 7&8a.m. 42 41 44 42 36 58 22 ERRATA. Page 20, line 2 from bottom. For al'ove read below. -—• last line. Dele u and autumn are ” read is. —— 41, line 19, For October read November. JTtms. Vigors, Printer, Penzance*