Meteorological observations and essays / By John Dalton.

  • John Dalton
Date:
1834
Catalogue details

Licence: Public Domain Mark

Credit: Meteorological observations and essays / By John Dalton. Source: Wellcome Collection.

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    third (3) is Marran’s or those observed in Europe before 1732 ; and the fourth (4) is from the Ameri- can list of those seen in the State of New York, in 1828 and 1830. Jan. Feb. Mar. Apr. May. June July Aug. Sept. Oct. Nov. Dec. (1) 18 18 26 32 21 5 2 21 23 36 88 9 (2) DIPS 923) lo Saeco (3) 21272212 1 5 (4) Hu Gates el Gus 7en6 14 814 1 25 OG 65 69 75 65 35 19 16 47 106 125 91 51 Hotalonuniberse ets sect ee 764. From what is now known of electricity, there is ereat reason to believe that most, if not all, that class of meteors denominated fiery, are of electric origin. Thunder takes place in the lower regions of the atmosphere, or amongst the clouds of one or two miles elevation. Lightning, taking place in an atmosphere of great density, is vivid and dazzling in the extreme. The large fire-balls, the Dodedes or smaller ones, and the shooting or falling stars, are found vastly more distant than the thunder ; their light is less intense than lightning, and their velo- city is measurable ; they appear, however, from distant observations on the same meteor, to tra- verse a high region of the atmosphere, probably from fifty to eighty miles of elevation. The aurora borealis exhibits a light infinitely more attenuated than the other meteors; it may spread over one