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Title: H. Ewington's universal chronometer or perpetual almanac explained
Identifier(s): text:366; APSimg6504; Goodman Number: 300; 973 C683 No. 172
Description: Paper instrument composed of movable discs for determining the time of sunrise and sunset, length of day and night, and other periodic phenomena.
Creator: Ewington, Harry
Source: Broadsides Collection (973 C683);
Subject: Broadsides ; Broadside Class: Science; Broadside Division: Scientific Instruments; Broadside Subdivision: ; Clocks & watches; Almanacs; Meteorological instruments
Date: n.d.

Title: Mémoire sur une pendule à baromêtre...
Identifier(s): text:572; APSimg6750; Goodman Number: 308
Description: Advertises a barometer which, by means of a stylet striking a paper grid, automatically records the current level of mercury at intervals as small as every four minutes.; Item call number: 608 P19, no. 16.
Creator: Romilly, Jean, 1714-1796
Source: Benjamin Franklin Library (608 P19); http://www.amphilsoc.org/library/mole/f/franklin/overview.htm
Subject: Broadsides ; Broadside Class: Science; Broadside Division: Scientific Instruments; Broadside Subdivision: ; Barometers; Meteorological instruments
Date: 1783

Title: Description of the atmospheric recorder, or self-registering apparatus for the various changes of the barometer, thermometer, hygrometer, electrometer, pluviometer, and evaporator, and of the force and direction of the wind. Arranged and manufactured by G. Dollond, optician to Her Majesty
Identifier(s): text:1750; APSimg6553; Goodman Number: 297; 973 C683 No. 728
Description: Includes description of how data is recorded by specially weighted pencils on an automatically moving roller. Also includes illustration of the atmospheric recorder and "representation of one day's work."; See annotation to Goodman #298 for information on the Dollond business.
Creator: Dollond, George, 1774-1852
Source: Broadsides Collection (973 C683);
Subject: Broadsides ; Broadside Class: Science; Broadside Division: Scientific Instruments; Broadside Subdivision: ; Meteorological instruments; Meteorology
Date: n.d.