Archive Hermannus Haga

Number of the collection:

UBG 108

Call Number:

uklu 108 Haga

Description of the archive made by:

Jettie Noordam-Noorman, 2025

Brief overview:

Name of the archive:

Hermannus Haga (1852-1936), Physicist

Dated:

year: 1896-1936

Size: 1 box

Provenance: University Museum of Groningen

Language of the materials: Dutch, German

Summary:

Archive:

Hermannus Haga (1852-1936), Physicist 

Institute:

University of Groningen

Retainer:

University Library, Special Collections

Provenance and acquisition:

Biography: 

Hermannus Haga (Oldeboorn, January 24, 1852 – Zeist, September 11, 1936) studied physics at Leiden University from 1871 to 1876. He earned his doctorate with a dissertation titled On the Absorption of Radiant Heat by Water Vapor under P.L. Rijke. From 1886 to 1921, he served as a professor of physics at the University of Groningen, where he established a physics laboratory. His research included the electrical voltage supplied by the Weston standard cell—which contributed to the definition of the volt—alongside Cornelis Wind on the scattering of X-rays by crystal lattices, demonstrating the wave nature of this radiation. Haga was also one of the founders of the Dutch Physical Society.

Acquisition: University Museum of Groningen
 

Future additions: No further additions to this archive are expected.

Contents and collation:

The collection consists of correspondence and several publications by Haga.

Instructions for users of the archive:

Accessibility

First of all, the archive is accessible for research purposes; furthermore for everyone interested in the archives. 

Limitations to use

Material from this collection is for library use only. Consultation is subject to the Regulations for the Use of Library Facilities. Copying is subject to the rules of Copyright . 

Accessing the archive

An inventory of the archive is available. 

Use/ reproduction

For conditions of use and reproduction, visit our website .

The copyright rests with the University of Groningen Library as owner of the collection

Citations

When referencing (materials from) this archive, the following information must be provided in full at least once. After this, an abbreviated citation suffices.

Archive: University Library Haga

Individual items: Groningen UB Haga [archive number]

Requests

The materials in this archive can be requested through SmartCat or by sending an email to the Special Collections department.