Black and white photograph of Rudolf Müller von Berneck. Von Berneck was a German scientist who patented the process for manufacturing concentrated nitric acid. His work with inorganic ferments has been mentioned…

Obituary for Louis Henry (1834-1913), a Belgian organic chemist who synthesized hundreds of new compounds in his lifetime. Henry notably coined the Henry reaction, which is today a classic carbon-carbon bond formation…

Portrait of Albert Jordan (1865-) dressed as a mountaineer. Jordan was an "oberbergrat" which is a type of government official.

Black and white portrait of Wilhelm Salomon-Calvi (1868-1941), taken in Heidelberg, Germany.

Saloman-Calvi was a German geologist and paleontologist. In 1893 he started working at the University of Heidelberg as a…

Black and white photograph of a large group identified as the Karlsruhe Chemistry Group, gathered for the occasion of throwing a goodbye party for an Emil Dieckhoff.

Photograph of a statue of Robert Wilhelm Bunsen (1811-1899). The statue was created by Hermann Volz (1847 -1941) and unveiled in 1908.

Bunsen was a prolific German chemist. Bunsen's most important work was in…

Black and white portrait of Paul Pfeiffer (1875-1951). Pfeiffer was a German organic and inorganic chemist who studied under Alfred Werner (1866-1919) at the University of Zurich. Throughout his life, he was a professor…

Black and white portrait of Max Bodenstein (1871-1942). Bodenstein has written a thank you note across the bottom of the photograph.

Max Bodenstein was a German physical chemist who worked with chemical kinetics. In…

Black and white portrait of Carl Engler (1842-1925).

Carl Engler (Karl Engler) was a German chemist, academic, and politician. He studied indigo synthesis, petrochemistry, and ozone. He created the Engler viscometer,…

Photographic view of W. W. Taylor reading with a young child outside a farmhouse. The child points to a flock of chickens. A meadow and mountains fill the background. On the back of the photograph is a holiday message…

Black and white photograph of a man, likely Julius Wilhelm Brühl (1850-1911), sitting outside in a garden.

Black and white portrait of R. Müller von Berneck posing with a table covered in fruit and greenery. On the wall is a landscape painting.

Black and white stereograph addressed to Georg Bredig (1868-1944) of a scientist, possibly Aleksandr Nikolaevich Lebedev (1869–1937) posing with a table of glassware and apparatuses. The work is signed by Peter…

Black and white photograph of a group of men gathered around a laboratory table. All are dressed in bonnets and ruffled dresses and some hold toy instruments. The photo's caption reads "Damenkapelle für…

Black and white photograph of a man working at a table. Behind him are two transformers, identified as an experimental transformer and a "Wahreltrow" transformer, and an oven. Two duplicate photographs with varying…

Black and white photograph of scientists in a laboratory at the University of Leipzig shown working at long tables cluttered with scientific apparatuses and glassware. The scientists in the photograph are identified by…

Black and white photograph of scientists in a laboratory at the University of Leipzig . The scientists in the photograph are identified by an inscription beneath the photo as "Ernst" and Harry Wheeler Morse (1873-1936).

Black and white photograph of Max Bodenstein (1871-1942) in a laboratory at the University of Leipzig.

Bodenstein was a German physical chemist who is considered to be one of the founders of chemical kinetics. He was…

Black and white photograph depicting three men, two wearing lab coats and the other wearing a suit, hunched over their books in the library of the Physical Chemistry Institute at the University of Leipzig. The men are…

Black and white photograph of three men in a workshop at the University of Leipzig. The men are identified by an inscription beneath the photograph from left to right as Henry L. Heathcote, Johannes Brode, and Wilhelm…

Sepia-toned photograph of three chemists at work in the physical chemistry lab at the University of Leipzig. Chemists in the photograph are identified by handwritten inscriptions on the photo from left to right as…

Sepia-toned photograph of seven chemists at work in the physical chemistry lab at the University of Leipzig. Chemists in the photograph are identified by handwritten inscriptions on the photo from left to right as…

Black and white photograph of the Physical Chemistry Institute building at the University of Leipzig. The Institute was founded in 1898 by Wilhelm Ostwald (1853-1932). In 1998, it was renamed the Wilhelm Ostwald…

Black and white photograph of scientists seated on stools in a laboratory at the University of Leipzig. The scientists pictured in the photograph are identified by an inscription written beneath the photo as (seated…

Photograph of two scientists working at their respective benches in a laboratory at the University of Leipzig. Identified by an inscription beneath the photograph, pictured at left is Alwin Mittash (1869-1953) and on…