Letter from Svante Arrhenius (1859-1927) to Georg Bredig (1868-1944) regarding Bredig's upcoming arrival in Sweden to study physical chemistry; this apprenticeship would lead to a life-long friendship between the two…

An invitation to the meeting of the Faculty of Mathematics and Physics at the University of Amsterdam and calculations using the Van der Waals equation of state written by its creator, Johannes Diderik van der Waals…

Notes for a proposed lecture topic created by Jacobus van't Hoff (1852-1911) sent to Georg Bredig (1868-1944). The computations pertain to thermodynamics.

Portrait of Richard Abegg (1869-1910), taken at Dahllöf Studio, Stockholm. Abegg was a German physical chemist known for his work in valence theory which led to the later octet rule. At the time this letter was…

Jacobus van't Hoff (1852-1911) updates his colleague, Georg Bredig (1868-1944), on calculations for a recent lecture on temperature coefficients.

Sepia-toned photograph showing an exterior view of the chemical laboratory building at the University of Amsterdam. The annotation beneath the photograph indicates that at the time of capture, Jacobus van't Hoff's…

Diploma granting Georg Bredig (1868-1944) a doctorate in philosophy from the University of Leipzig. Bredig began studying physical chemistry at the University of Leipzig in 1889. He earned his doctorate in 1894.

Group photograph showing chemists in Amsterdam. The pictured individuals are likely the students and colleagues of Jacobus van’t Hoff (1852-1911). Handwritten annotations identify the individuals from left to right as…

Black and white photograph of Georg Bredig (1868-1944) pictured standing on the left of his colleauges in Amsterdam.

Georg Bredig was a German physical chemist known for his work with catalysts, reaction kinetics,…

Fading posed photograph of chemists at the University of Amsterdam, possibly at Jacobus van 't Hoff's (1852-1911) laboratory. Pictured standing, left to right are Thomas Ewan, Heinrich Jacob Goldschmidt (1857-1937),…

Notes handwritten by Dutch physical chemist, Jacobus H. van’t Hoff (1852-1911). Van’t Hoff was the first winner of the Nobel Prize in chemistry in 1911 and is considered to be one of the lead pioneers of the field of…

Jacobus Henricus van’t Hoff (1852-1911) suggests that Georg Bredig (1868-1944) conduct a distillation experiment using a solution of two liquids with very different molecular weights.

Van't Hoff is considered to be…

Cover to an article commemorating Antoine Laurent Lavoisier (1743-1794), who is widely considered the father of modern chemistry.

Jacobus Henricus van’t Hoff (1852-1911) writes to Georg Bredig (1868-1944) about working in his (van't Hoff's) laboratory.

Van't Hoff is considered to be one of the founding fathers of physical chemistry. In 1901…

Svante Arrhenius (1859-1927) writes to Georg Bredig (1868-1944) about coming to Stockholm to start working. In 1894, Bredig began his post-doctoral studies with Arrhenius.

In 1894 Georg Bredig (1868-1944) began his post-doctoral studies with Svante Arrhenius (1859-1927). In this letter, Arrhenius expresses his happiness that Bredig will continue studying physical chemistry and invites him…

Svante Arrhenius (1859-1927), a Swedish chemist and the Nobel Prize Winner for Chemistry in 1903, shares scientific data with his friend and colleague Georg Bredig (1868-1944).

Svante Arrhenius (1859-1927), a Swedish physicist, expresses gratitude to his colleague Georg Bredig (1868-1944) for a letter he received earlier. Arrhenius apologizes for the delayed response, citing recent…

Four copies of a black and white photograph featuring Wilhelm Ostwald (1853-1932) standing with colleagues in front of a blackboard. Identified in the photograph by handwritten annotations from left to right are Wagner,…

Portrait of Viktor Rothmund (1870-1927). Rothmund was an Austrian chemist and professor at the German University at Prague. He was a student under Wilhelm Ostwald (1853-1932) at the University of Leipzig with Georg…

Black and white photograph of chemists in a lecture hall posing in front of a blackboard and podium. The are identified as (back row, left to right) Arthur A. Noyes (1866 - 1936), Clement, Max Le Blanc (1865 - 1943),…

Black and white photograph depicting a group of chemists posing with glassware in a laboratory at the University of Leipzig in 1892. A handwritten caption on the back of the photograph identifies those pictured as "Dr.…

Eduard Buchner (1860-1917), a German chemist and zymologist who was awarded the 1907 Nobel Prize in Chemistry for his work on fermentation, informs Wilhelm Ostwald that he has discovered a remarkable property of…

Black and white portrait of Gustav Heinrich Wiedemann (1826-1899). Wiedemann was a German physicist, scientific author, and professor. In 1877, he became the editor of Annalen der Physik und Chemie (Annals of Physics…

Black and White portrait of Cato Maximilian Guldberg (1836-1902) and Peter Waage (1833-1900). The two men are wearing suits and sitting at a small round table.

Waage and Guldberg were Norwegian chemists, together they…