Silhoferstrasse from 1882-85, 35 Sophienstrasse in 1892, Steinstrasse in 1895,īoecker issued catalogue number 8 in 1881 (Figure 4). He is known to have lived at several other locations in List of German naturalists gave Heinrich’s address as 78 Gernsbacherstrasse, Wetzlar. There were not any known business connections between Boecker, Rodig or Hensoldt. Boecker’s labels were identical to those of Rodig and similar to those of Hensoldt, so the odd spelling may reflect a quirk of a shared print shop. That German/English hybrid spelling was also used on the similar-looking labels of Moritz Hensoldt (also of Wetzlar) and Carl Rodig (of Hamburg). Inexplicably,īoecker’s slide labels spell the business as 'Mikroscopisches' (Figure 1). Title was also adopted by several other German slide-makers. Heinrich named his operation 'Mikroskopisches Institut' (Microscopic Institute). Heinrich Boecker was born Jin Breckerfeld, Westfalen, a son of Friedrich Wilhelm Boecker.īoecker established his business in 1875, according to Bracegirdle’s Microscopical Mounts and Mounters. Adapted from a family photograph provided by his great-grandson, Claudius Dietzsch. Heinrich Boecker, photographed August 3, 1926. Heinrich was described as a preparerĪnd source of slides in various microscopy and entomology books through 1930. He offered a wide variety of mounted and unmounted objects, plus suppliesįor customers to make their own slides. Boecker’s labels came in a variety of colors - there are no apparentĬorrelations between color and specimen type or quality, and slides bearing twoĭifferent colors of label are not uncommon.Ī sampling of advertisements published by Heinrichīoecker. Not all of the slides he sold were producedīy Boecker, as he is known to have retailed mounts by Eduard Thum and Heinrichįrey. A wide variety of specimen types were produced, from insects toīotanicals to diatoms to minerals. Some museums and other modern sources have incorrectly attributed Boecker microscopes to Heinrich.Įxamples of microscope slides prepared by Heinrichīoecker. A brother, Emil, produced microscopes and related equipment under his own name, and in partnership with Gottlieb Fecker, between 18. Germany from 1875 until the time of his death.

Heinrich Wilhelm Justus Boecker, 1855-1927īoecker was a professional microscope slide preparer, working in Wetzlar,

Ernst leitz wetzlar microscope 1921-24