Description

A set of dilators by Gudendag Frères of Paris of circa 1890. This firm was specialized in medical instruments and called themselves suppliers of hospitals. They held office at rue de Odéon 19 in Paris as they state in an advertisement in Annales de Dermatologie et de Syphiligraphie. This book was published by Elsevier in 1888.

Another contemporary reference to Gudendag frères is made on page 310 and further in L’ Urine Humaine – Urines Normales, Urines Anormales, Urines Pathologiques by Camille Viellard, pharmacician in Paris. The passage begins at page 310 and provides a detailed description of the general technique for microscopic examination of urinary sediments. It explains various methods for collecting sediments, emphasizing the advantages of centrifugation with a device of Professor Gaertner from Vienna, modified by Gudendag (see pictures). The text gives an extensive description of this specific centrifuge apparatus and its setup process. Additionally, it covers the use of reagents for staining sediment samples and highlights the importance of careful examination to distinguish urinary elements from foreign bodies, which could be done with the microscopes of Nachet of Paris. Overall, it offers comprehensive guidance for conducting microscopic analysis of urinary sediments in laboratory settings. A transcription can be found below.

Case dimensions: 15 x 34 x 6,5 cm.

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