Paul Ditisheim

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
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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".

 

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Reforme Des Notations Horaires Le jour de 24 heures

Catalogue no: 1447
Dewey No: Subject(s): Courtenay Ilbert Archive
Author(s): Paul Ditisheim
Total pages: 9 Illustrations: 0 Language(s): French Publication date: 1917
Editor: Publisher: Journal Suisse d'Horlogerie
Dimensions: 240mm x 160mm Condition: Good
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Published by Journal suisse d'horogerie, this small publication reports on the the '99me session annuelle de la Societe helvetique des sciences naturelles, Section de Geophysique, Meteorologie et Astronomie.'

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Chronometres Observes aux Haute Altitudes et Dans Le Gaz Hydrogene

Catalogue no: 1444
Dewey No: Subject(s): Courtenay Ilbert Archive
Author(s): Paul Ditisheim
Total pages: 8 Illustrations: 1 Language(s): French Publication date: 1923
Editor: Publisher: Societe suisse de Geophysique, Meteorologie et Ast
Dimensions: 230mm x 155mm Condition: Good, some staining to cover, pages yellowing
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A report of the lecture given by Paul Ditisheim to the G.M.A. at Zermatt on 31st August 192(3?). "Reunion de la Societe helvetique des Sciences naturelles. Assemblee generale ordinaire. Presidence M.A.de Quervain" Interesting illustration of the equipment used at Ateliers Paul Ditisheim "Installation Pour L'Etude De La Marche Des Chronometres dans l'air, sous densite variable, et dans l'hydrogene"
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Les Parfums et les Montres

Catalogue no: 1437
Dewey No: Subject(s): Courtenay Ilbert Archive
Author(s): Paul Ditisheim
Total pages: 9 Illustrations: 14 Language(s): French Publication date: Mar. 1938
Editor: Publisher: Revue Mensuelle de la Parfumerie
Dimensions: 280mm x 190mm Condition: Good, no cover, a little dog-eared
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Full titlle: Les Parfums et les Montres. Influence de Certaines Emanations sur L'Alterabilite des Lubrifiants Sections of this article under the following headings; Emission des parfums sur des surfaces de mercure talquees Photographie et cinematographie de l'emission du parfum des flreurs naturelles Mesure du degagement des parfums C'est dans les huiles des montres et autres appareils que viennent se vixer les substances odorantes Micromethode de mesure des emissions basee sur les variations de la viscosite des huiles Comparaisons effectuees en presence de 53 corps differents
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L'Observatoire Royal De Greenwich (published in L'Astronomie)

Catalogue no: 1433
Dewey No: Subject(s): Courtenay Ilbert Archive
Author(s): Paul Ditisheim
Total pages: 25 Illustrations: 17 Language(s): French Publication date: Dec. 1925
Editor: Publisher: Societe Astronomique De France
Dimensions: 250mm x 165mm Condition: Reasonable but some tears
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Included within this journal is this history of the Greenwich Observatory. Several pages devoted to John Harrison with photos of H1 - H4 and a drawing of H2 by Gould Also included is an advertisement for Ulysse Nardin, Chronometrie Marine & Poche
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Les Signaux Horaires du B.I.H.

Catalogue no: 1434
Dewey No: Subject(s): Courtenay Ilbert Archive
Author(s): Paul Ditisheim
Total pages: 4 Illustrations: 0 Language(s): French Publication date: Mar. 1927
Editor: Publisher: Societe Astronomique De France
Dimensions: 250mm x 165mm Condition: Reasonable
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Notes:
Pages extracted from this edition of L'Astonomie. Concerns, "emissions radiotelegraphiques du Bureau International de L'Heure" and includes 3 tables detailing the "Signaux Horaires Internationaux" from the Tour Eiffel and Croix de Hins. One table is of "Corrections auxs Signaux Horaires de la Tour Eiffel
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"Bale et l'hologerie" Also, "Christiaan Huygens et le Spiral Reglant"

Catalogue no: 1415
Dewey No: Subject(s): Courtenay Ilbert Archive
Author(s): Marius Fallet, Paul Ditisheim
Total pages: 18 Illustrations: 16 Language(s): French Publication date: 1944
Editor: Publisher: Unknown
Dimensions: 265mm x 205mm Condition: Good, no cover, 1st and last page slightly soiled
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2 articles taken from an unknown French/Swiss publication and stapled together by Ilbert 1. Bale et l'horlogerie. An article with 2 illustrations and divided into the following sections; Les quatre periodes horlogeres principales Comment l'hologerie est nee a Bale - Le grosse hologerie L'apparition de l'horloge mechanique d'appartement La separation des horlogers grossiers et des horlogers en petit volume. La decadence de la grosse horlogerie L'apparition de l'horloge a pendule et de la montre a Bale De quelques horlogers marquants et lignees horlogeres de Bale
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