Pamphlets, Offprints and Reprints

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The Molecular Weight of Urease

James B. Sumner

Sumner, James B. The Molecular Weight of Urease, 1938
The Molecular Weights of Canavalin, Concanavalin A, and Concanavalin B

James B. Sumner

Sumner, James B. The Molecular Weights of Canavalin, Concanavalin A, and Concanavalin B, 1938
Crystalline Catalase

James B. Sumner and Alexander L. Dounce

Sumner, James B. and Dounce, Alexander L. Crystalline Catalase, 1937
The Molecular Weight of Crystalline Catalase

James B. Sumner and Nils Gralen

Sumner, James B., Gralen, N. The Molecular Weight of Crystalline Catalase, 1938
Chemie der Zelle

P. G. Unna

P.G. Unna. Chemie der Zelle, 1914

Paul Gerson Unna (1850– 1929) was a German physician specialized in dermatology and one of the pioneers in dermatopathology.
Die zustandsgleichung

J. D. Van der Waals

J.D. van der Waals. Die zustandsgleichung, 1911

First edition

Johannes Diderik van der Waals (1837-1923) was a Dutch theoretical physicist and thermodynamicist famous for his pioneering work on the equation of state for gases and liquids. He won the 1910 Nobel Prize in physics for his work on the equation of state for gases and liquids.
Über die Zunehmende Bedeutung der Anorganischen Chemie

Jacobus H. Van’t Hoff

J.H.van’t Hoff. Über die Zunehmende Bedeutung der Anorganischen Chemie, 1898

Jacobus Henricus "Henry" van 't Hoff Jr. (1852-1911) was a Dutch physical chemist. A highly influential theoretical chemist of his time, Van 't Hoff was the first winner of the Nobel Prize in Chemistry.
Justus Freiherr von Liebig als Begründer der Agrikultur-Chemie

August von Vogel

August von Vogel. Justus Freiherr von Liebig als Begründer der Agrikultur-Chemie, 1874

Full text

Justus Freiherr von Liebig (1803 – 1873) was a German scientist who made major contributions to agricultural and biological chemistry, and is considered one of the principal founders of organic chemistry. As a professor at the University of Giessen, he devised the modern laboratory-oriented teaching method, and for such innovations, he is regarded as one of the greatest chemistry teachers of all time. He has been described as the "father of the fertilizer industry" for his emphasis on nitrogen and trace minerals as essential plant nutrients, and his formulation of the law of the minimum, which described how plant growth relied on the scarcest nutrient resource, rather than the total amount of resources available. He also developed a manufacturing process for beef extracts, and with his consent a company, called Liebig Extract of Meat Company, was founded to exploit the concept; it later introduced the Oxo brand beef bouillon cube. He popularized an earlier invention for condensing vapors, which came to be known as the Liebig condenser.