Inscription des pressions barometriques sur les Bulletins de marche des Chronometres etudies dans les Observatoires

Catalogue no: 1455
Dewey No: Subject(s): Courtenay Ilbert Archive
Author(s): Paul Ditisheim
Total pages: 9 Illustrations: 2 Language(s): French Publication date: 1937
Editor: Publisher: Unknown
Dimensions: 245mm x 150mm Condition: Good
Related titles: Related library records:
Notes:

Pages 269-278, extracted from un unknown publication and stapled between paper covers.  Inscribed on first page;

"C.A.Ilbert Esq. from Paul Ditisheim. Very cordially"

The paper briefly covers the historic attempts to counter the effect of barometric pressure changes on the rates of chronometers and the present day (1937) trials and equipment.

Illustration of the testing equipment used in the Neuchatel Observatory; "Appareillage pour l'observation des Chronometres sous diverses densites atmospheriques et dans le gaz hydrogene".

 

Room location: Library Extension Cabinet: F Shelf: 5
Search terms: Chronometers
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