His Work
1. Polymer physical chemistry specimen papers references
Engelbert Broda started his thesis in Berlin in 1933 but was expelled from Germany in that year. He resumed his studies in Vienna in the Institute of Hermann Mark, who allowed him to include his work in Berlin in his thesis.
1.1. Bibliography of publications on polymer physical chemistry 
2. Visual purple 1938-1941
In 1938 Broda was employed by Charles Goodeve and W. Lythgoe to work on Visual Purple, a component of the human visual system. The work was of seminal importance for later work on this system, notably by George Wald. It was interrupted by Broda’s first internment (late 1939) and then ended by his second internment, in 1940. See also Nachlass file ZB68.
2.1. Bibliography of publications on visual purple
2.2. Correspondence between Engelbert Broda and George Wald (1951)
2.3. Nachlass file ZB68
3. Atom Project papers and reports 1942-1946
After a period as an industrial chemist Engelbert Broda joined Tube Alloys, the British Atom project at the end of 1941. His work in Cambridge was partly published in the scientific journals, notably in Nature, and was partly recorded in confidential reports, British Atomic Energy Reports, that were eventually de-classified. Some of this material was subsequently also published in journals. The names of Broda’s co-authors are of interest in assessing how much of the overall project EB knew about. See also The Spy.
3.1. Bibliography of publications on the Atom Project
4. Early post-war radiochemistry, 1946-1952, Edinburgh and Vienna
4.1. Engelbert Broda: »Advances in Radiochemistry« (1950, title page)
4.2. Correspondence between Engelbert Broda and Norman Feather (1945-1957)
4.3. Correspondence between Engelbert Broda and Nicholas Miller (1947-1953)
4.4. Nachlass file ZB69
5. Tobacco mosaic virus 1952 -
Broda then started to apply his radioisotope expertise to biology. »I have sent off to a journal a little piece of work of which we can be proud: first synthesis of radioactive tobacco mosaic virus. This will make possible the thorough investigation of the metabolism of viruses... It’s a long term project - if only we have peace.« (Letter to Paul Broda, 1952)
5.1. Symposium »Biochemistry of Viruses« (co-edited by Engelbert Broda, title page)
5.2. Two journal articles
5.2.1. Radioaktives Tabakmosaikvirus (Monatshefte für Chemie, Vol. 83)
5.2.2. Distribution of Radiocarbon in Tobacco Mosaic Virus (Nature, Vol. 176)
5.3. Nachlass file ZB81
6. Tracers in Chemistry and Biochemistry
6.1. Four books by Engelbert Broda and Thomas Schönfeld (title pages)
6.1.1. Radiochemische Methoden der Mikrochemie (1955)
6.1.2. Radioaktive Isotope in der Biochemie (1958)
6.1.3. Die technischen Anwendungen der Radioaktivität (1956)
6.1.4. Die technischen Anwendungen der Radioaktivität (andere Ausgabe, 1962)
6.2. Four articles by Engelbert Broda
6.2.1. Radiocarbon and Some Applications to Biochemistry (Nature, Vol. 173)
6.2.2. Der dynamische Zustand der Lebewesen und sein Ursprung
6.2.3. Der Einfluß der Radioaktivität auf die Biowissenschaften
6.2.4. Die Radionuklide in den Wissenschaften
7. Origin of Life
7.1. Correspondence between Engelbert Broda and Harold C. Urey (1969)
7.2. Nachlass files ZB26, ZB28, ZB31
8. Bioenergetics; The Evolution of the Bioenergetic Processes
Broda’s faculty voted in 1959 that he should be given a personal chair, but the Ministry sat on this until 1964. In 1963 he became a salaried Assistent, and wryly explained to Tess Simpson that this was a position usually gained at the age of twenty-five, so it was about right... with the digits inverted. He finally became a full professor in 1968. The task of teaching physical chemistry to biochemists and medical students had made Broda learn the subject systematically, with a decisive effect on his research and scientific writing. His magnum opus The Evolution of the Bioenergetic Systems (1975) concerns how organisms evolved to be able to obtain the energy they require for growth and metabolism, including photosynthesis. It was a product of very wide reading, correspondence and discussion. His abiding interest in photosynthesis led him to become a strong advocate of solar energy as providing the best long-term solutions to the world’s energy problems.
8.1. Engelbert Broda: »The Evolution of the Bioenergetic Processes« (1975, 1978; title page)
8.2. Three journal articles
8.2.1. Die Evolution der bioenergetischen Prozesse
8.2.2. Grundlagen der Photosynthese
8.2.3. Nitrogen fixation as evidence for the reducing nature of the early biosphere
9. Anammox
In 1977 Broda published a paper entitled Two kinds of lithotrophs missing in Nature which in 1994 led to the discovery of a novel mechanism, anaerobic ammonia oxidation (anammox), by which elemental nitrogen returns to the atmosphere in the nitrogen cycle, in parallel with the long-studied process of denitrification. One of the organisms mediating such production of nitrogen was then named Scalindua brodae after Broda. Such organisms were first seen as having potential in waste-water treatment, and have now been shown to be very important in nitrogen flux in the oceans.
9.1. Two kinds of lithotrophs missing in nature (Zeitschr. f. Allg. Mikrobiologie, Vol 17 Nr. 6)
9.2. Wikipedia entry on anammox 
10. History and Philosophy of Physics 1850-1930; Boltzmann and others
In the War in Cambridge, Engelbert Broda became interested in the contribution to science and technology made by Austrians. This was partly to support his desire that Austria resumed its existence independent of Germany after the War. He identified Boltzmann as the pivotal figure and researched, wrote and spoke extensively about him.
10.1. Artikel über Brodas Interesse an Ludwig Boltzmann
10.2. Three books on Boltzmann by Engelbert Broda
10.2.1. Ludwig Boltzmann: Mensch - Physiker - Philosoph (Titelseite)
10.2.2. Ludwig Boltzmann: Man - Physicist - Philosopher (title page)
10.2.3. Ludwig Boltzmann: Populäre Schriften (hrsg. von Engelbert Broda, Titelseite)
10.3. Five articles on Boltzmann
10.3.1. Ludwig Boltzmann. Der Mann und das Werk (zum 75. Todestag)
10.3.2. Ludwig Boltzmann als evolutionistischer Philosoph
10.3.3. Ludwig Boltzmann, die Mechanik und der Vitalismus
10.3.4. Ludwig Boltzmann, Albert Einstein und Franz Joseph
10.3.5. Das intellektuelle Viereck: Mach - Boltzmann - Planck - Einstein
10.4. Correspondence on Einstein
10.4.1. Nachlass file ZB43
10.5. Biographical articles on Paul Ehrenfest and Friedrich Adolf Paneth
10.5.1. Paul Ehrenfest 1880-1933 (Neue Österreichische Biographie, Bd. XXI)
10.5.2. Friedrich Adolf Paneth 1887-1958 (Neue Österreichische Biographie, Bd. XIX)