Meteorological observations, 1805-1808, made at Arkansas


Date: 1805-1808 | Size: 1 volume(s), 1 volume, 68 p.


Treat sent this volume to Thomas Jefferson in 1809 from "Arkansa in Louisiana," and wrote, "If from their perusal you can derive, either information or amusement, respecting the climate of this part of our country, your acceptance will be highly gratifying."

Collection Information

Physical description

1 volume, 68 p.


Presented by Thomas Jefferson, 1809; accessioned, 1934 (1934 70447).

Alternate formats available

These materials are also available on microfilm (Film 1467, Reel 3).

Early American History Note

John Breck Treat's meteorological observations for 1805-1808 contain information on the temperature, barometer, rainfall, and general observations for Arkansas in the recently acquired Louisiana Territory. The observations were given to Thomas Jefferson.

Indexing Terms


  • Meteorological Data
  • Meteorological records.
  • Scientific Data

Geographic Name(s)

  • Arkansas -- Climate.

Personal Name(s)

  • Jefferson, Thomas, 1743-1826
  • Treat, John Breck.


  • Meteorology -- Observations -- Arkansas.
  • Science and technology