Jacob Frantz, Meteorological Observations  1834-1855
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Collection Scope and Content Note

This 243-page volume, entitled "Range of Thermometer from 1835 to 1855," contains 241 pages of daily and monthly meteorological observations compiled by Pennsylvania resident Jacob Frantz between February 1, 1835, and February 28, 1855, as well as 2 additional pages of notes. The first two pages note the occurrence of floods in Pequea, Pennsylvania, on July 20, 1818, February 21, 1822, and January 26, 1839; general remarks on the weather during the winter of 1831; a brief record of a watch Frantz purchased from a man from Philadelphia in 1855; and Frantz's comments on the weather of May 12, 1834, and January 1835. The remaining 241 pages contain charts of daily meteorological observations. Each page covers an entire month of general observations on the weather in the morning and evening (February 1835-June 1835) or at noon (July 1835-February 1855), as well as high and low temperatures for each day and monthly averages. Frantz also recorded the phases of the moon after March 1835. For each month, Frantz composed a brief summary of the weather and its effect on local crops, most frequently flour, wheat, corn, oats, and clover seed. After July 1841, he often documented the prices of some of these goods as well.

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