Notes taken by Georg Bredig (1868-1944) on a lecture course taught by Hermann (Herman) Mark (1895-1992) on atomic models and wave mechanics during the winter and summer semester of the 1927-1928 academic year at the…

Part of a letter from an unidentified sender. The letter contains an advertisement for "Lecture Series on Process Engineering” at the Karlsruhe Technical University, featuring Prof. W. L. Badger (1886 - 1958), a…

Letter from Paul Walden (1863-1957) to Georg Bredig (1868-1944). Walden was a chemist who is known for creating the stereochemical reaction the "Walden inversion". From 1892-1919 Walden was a faculty member at Riga…

Letter from Paul Walden (1863-1957) to Georg Bredig (1868-1944). Walden thanks Bredig for a previous letter and reminisces about working together and their previous mentors.

Walden was a chemist, who is most known for…

Calling card belonging to Max Läuger (1864-1952) a German architect, artist, and ceramicist. He was a professor of interior design at Karlsruhe Institute of Technology.

In a postcard written from Switzerland, Eugen Bamberger (1857-1932), a German chemist who discovered the Bamberger rearrangement, thanks his colleague, Georg Bredig (1868-1944), for corresponding with him and provides…

Letter addressed to Alfred Schnell (1900-1944) and Eva Schnell (1913-1944) from Max Albert Bredig ( 1902-1977). Bredig asks how the Schnells are and tells them he has prepaid a cable for their answer.

Censorship information provided by the American Red Cross. Letters were censored by the United States Military and Postal Service to protect sensitive information. Any information that could be significant to the…

Max Albert Bredig (1902-1977) writes to his friend and former collogue Kasimir Fajans (1887-1975). Bredig tells Fajans that he will be unable to attend the 50th anniversary of the Karlsruhe Chemical Society. He referred…

Shortly after his father's death, Max Bredig (1902-1977) drafts a letter to Kasimir Fajans (1887-1975).

Max Albert Bredig (1902-1977) tells Kasimir Fajans (1887-1975) that he hopes to be in Ann Arbor, Michigan, by the end of October. Bredig, with the help of Fajans, was able to emigrate from Germany with a position at the…

Max Albert Bredig (1902-1977) thanks Mr. Helfman for the financial support he has recently given him. Helfman seems to have been an integral part in giving Bredig the fellowship at the University of Michigan, which…

Kasmir Fajans (1887-1975) informs Max Bredig (1902-1977) by telegram that his affidavit for Bredig's American immigration visa and an appointment letter from the University of Michigan have been sent to him in Berlin,…

Black and white portrait of a man wearing a suit. Taken by F. Hundt in Münster, Germany.

Portrait of Johannes Wislicenus (1835-1902). Wislicenus was a German organic chemist, known for his work in stereochemistry. He was a professor at the University of Zürich, the Swiss Polytechnical Institute, the…

Black and white portrait of an unidentified man wearing a suit. The photograph was taken at a studio owned by Wilhelm Höffert (1832-1901).

Thank you card from Theodor Curtius (1857-1928) with his black and white photograph on the occasion of his sixtieth birthday. The portrait was adhered to the inside of a card which came with a personal note from…

Postcard from Paul Walden (1863-1957) to Georg Bredig. The postcard features an illustration of a crocus surfacing from the snowy ground. From the earth below, people emerge playing trumpets.

Walden was a chemist who…

Letter from Alfred Hettner (1859-1941) to Georg Bredig (1868-1944). Hettner was a German geographer who studied Europe, Colombia, Chile, and Russia.

Letter from Paul Walden (1863-1957) to Georg Bredig (1868-1944). Walden was a chemist who is known today for inventing the stereochemical reaction known as the "Walden inversion," which inverts a stereogenic center in a…

Blank postcard featuring a black and white photograph of two men using an electrical oven, invented by Henri Moissan (1852 - 1907), at La Sorbonne, University of Paris.

Postcard of the Katarina Elevator in Stockholm, Sweden. The postcard, sent to Georg Bredig (1868-1944), is signed by well-known scientists such as Svante Arrhenius (1859-1927), Astronomer Gustav Kobb, Otto Berg (1873…

Postcard from A. Walther to Georg Bredig (1868-1944). The postcard features the english dock in St. Petersburg, Russia.

Postcard from Marc Rosenberg (1852-1930) to Georg Bredig (1868-1944). The postcard features an image of a house on a hill in the Black Forest mountain region.

Rosenberg was an art historian, collector, and professor.…