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 Cultural Heritage



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Cultural Heritage - Ancestral Craftmanship

The collection consists of work of the ancestors and teachers of the founders of Stichting De Traditie: diploma's, certiificates, musical compositions, correspondence, audio tapes, experimental protocols and recordings of scientific investigations, student reports, scientific publications, precision instruments, electronic equipment, joinery, needlework, embroidery, and biographies. Part of the collection is related to the rise and falll of the discipline of Comparative Physiology  (Animal Physiology), with focus on the life and works of Sven Dijkgraaf and his students. Among the very valuable collection items we reckon the original notes on the discovery of the electrical sense of sharks and rays by Sven Dijkgraaf, as well as his independent discovery of echolocation in bats. On the other hand the heritage of the early organists and carilloneurs of the St Stephanus Church and Tower at Nijmegen, among whom Willem de Vries (1871-1936) and Arie Peters (1908-1980), represent unique pieces of Netherlands (and European) Cultural Heritage.
The productivity of our male ancestors would have been impossible without the permanent background support of their female partners. The less numerous artifacts of the latter ones also represent impressive testimonies of their capabilities and qualities. Stichting De Traditie intends to expose and highlight also these qualities.

At present the collection is being indexed, digitized, and filed under the names of key persons. Their work is being made accessible as publications and MUSEUM-EXPO pages.











never again

This never again.....!

The 'Mice Operated Record Shredder'  in the service (crawl) space of the former Laboratory of Comparative Physiology at Utrecht University in 1974. Due to lack of space, the printed history of the lab suffered from progressive destruction. The urge to save some parcels of paramount importance from irreparable loss, resulted in the foundation of Stichting De Traditie.
Stichting De Traditie acknowledges the valuable parts played by the following persons in conserving the collection: Prof. Dr. Ir. W.A.P.F.L. van de Grind, Prof. Dr. L.J.Dorsman, Prof. Dr. L.Th.G.Theunissen, Prof. Dr. F.A.J,.Verstraten,  A. van Domselaar, Dr. A.M. Voûte, and Janno den Engelsman on behalf of the Nederlandse Klokkenspel Vereniging.











collection 2015

2015 Progress .....

Currently, the collection parts have been sorted by theme, and only the pre-collection DijkgraafS1908, part of the theme Utrecht-Science, is provided with a draft index. It is stored in 48 standard file boxes, of which 24 contain correspondence, 11 research protocols, six educational material, two reprints, two mamangement data, one orations and obituaries, and four various documents about the laboratory building. Some documents on electrophysiological methods and research on electroreceptive fish have been digitized. In principle, the pre-collection DijkgraafS1908 is transferable to an institutional archive. From 2016 on, priority will be given to the theme Nijmegen-Music







handzaag

2016 Distributed Repositories

The decision of whether or not Stichting De Traditie should start a museum for visitors was postponed till a later point in time. Today, the preference is not a traditional museum with visitors, but a website, as is also adopted by most institutional archives. Therefore, the physical items of the collection will be transfered to institutional archives after description and finishing of the accessory inventory. What is not suited for an institutional archive shall be returned to the original donors. In this way storage is taken care of either by institutional archives or by concerned individuals. The saws, for instance, of Carel Alexander Walhof (1878) for joinery, and of Marinus Coenraad Peters (1878) for garden maintenance, are being conserved by private individuals.






2017 Utrecht University Museum adopts Sven Dijkgraaf's legacy

The pre-collection DijkgraafS1908 was transferred to the Utrecht University Museum on April 10, 2017. The pre-collection DijkgraafS1908 consists today of 51 standard archive boxes, of which 24 contain correspondence, and 11 research protocols; both from the period 1931-1974. The other boxes deal with teaching, management, and lab history, The collection shows a detailed picture of university management before and after WW II. Also the dependence of research on technological developments is covered, as well as the influence of scientists from abroad. Were pre-war scientists happy with the use of string galvanometers and kymographs, operational amplifiers and computers were common practice at Dijkgraaf's retirement in 1974.









2019 Willem de Vries, organist and carillonneur

The pre-collection Vries-Wde1871 has been scanned and indexed in 2018. It was decided to rename the pre-collection into PetersA1908_V, the "V" meaning Friends, Colleagues, and Predecessors. Donation to an institutional archive is postponed till the remainder of the pre-collection PetersA1908 has been scanned and indexed. The expectation is that several dispersed documents of the pre-collection VriesWde1871 will be found between the many documents of the pre-collection PetersA1908. Whereas indexing the pre-collection DijkgraafS1908 suffered from time pressure due to the move to a new location, sorting out the pre-collection PetersA1908 suffers from too many entries started over in time, resulting in general chaos. Nevertheless there is progress.





 2021 Arie Peters, organist en carillonneur

The pre-collection PetersA1908 has been scanned and indexed; the total number of scans exceeds 18,000, where many scans contain double pages. The collection consists of autographs like instruction material and transpositions for carillon, but also programmes of organ recitals, and documents of predecessors, colleagues, and friends. A multitude of autographs of copied scores, and many small note books with literature abstracts have been digitized . It is now possible to re-arrange the scanned material into a final index, without the need of physical access to the documents. Sorting can be done via digital ways, from an armchair. What further remains is to finish the time line of his career, curriculum vitae, and a list of the books from his library. Because many of those books are accessible through other libraries, composition of a simple list may suffice. See further completion and transfer 2023.









 2023 Dijkgraaf's Electroreception Project - continued

Conform the policy plan, Stichting De Traditie will digitize the earlier adopted Electroreception and Electrophysiology projects of the former Laboratory of Comparative Physiology at Utrecht. The plan is to compose a representative selection of 1) research of the function of the ampullary organs of fishes, 2) research of the natural marine electric fields detectable by those ampullary organs, and 3) research of the biological significance of those fields.The time window runs from 1963 till 2006.
  • Image left: PhD student Robert C. Peters (left) and his student Robert J. Veeneklaas (right) start to measure electric fields in the top layer of the Mediterranean, several miles offshore, after leaving the research vessel of the Laboratoire Arago at Banyuls-sur-Mer (France). The recording equipment was specifically designed to measure voltage differences at the scale of electrosensitive fish, like dogfish (Scyliorhinus sp.). The experiments were part of a regular excursion of the Laboratory of Comparative Physiology at Utrecht. The station visited in 1970 was at Banyuls (Fr.}.




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