Boerhaave, Jacob

Schultens, A. (1988 (1739)). < ( demische B.edevoeringvan A-lhert Schultens ter Gedachtenisse van den Gro-ten Herman Boerhaave. Uitgesproken 14 november (Schultens Jan Jacob, Trans.) 72. 

Love, R. (1972). Some Sources of Herman Boerhaave s Concept of Fire. HwWx, (3), 157-174. Love s argument that the belief in a spiritual substance like fire was not unique is obvious when comparing Boerhaave s concept of fire to for example Jacob Boehme s divine substance saliter, which has the same qualities. However, Boerhaave s concept of fire is specifically Calvinist. 

Principe, L.M., Weeks, A. (1989). Jacob Boehme s Divine Substance Saliter its Nature, Origin, and Relationship to Seventeenth-Century Scientific Theories. Bn/AA journal for the History of Science, 22, 53-61. See also Taylor, F.S. (1953). The Idea of the Quintessence. In E. A. Underwood (Ed.), Science, Medicine and History. Essays on the Evolution of Scientific Thought and Medical Practice written in honour of Charles Singer (vol. i, pp. 247-265). London. Note that Taylor s quintessence is something between matter and spirit, while Boerhaave s fire is corporeal. Osier, M.J. (Ed.). (1991). Atoms, Pneuma, and Tranquility. Epicurean and Stoic Themes in European Thought. Cambridge. 

It is likely that Boerhaave started his alchemical experiments earlier than 1693, while experimenting with his brother Jacob. However, no notes of these experiments can be found. It is likely that the experiments starting in October 1693 represent the start of Boerhaave s chemical career. Boerhaave not only graduated in medicine, but also after the incident on the canalboat, he had turned to a serious study of natural philosophy. Until his appointment as lecturer in medicine in 1701, Boerhaave seriously studied chemistry and he did many experiments on metals. 

A second notebook, containing experiments on metals starts in 1718, when Boerhaave was offered the chair of chemistry in the University of Leiden. With the chair also came a laboratory and money for improvement, for Boerhaave s predecessor, Jacob le Mort, had largely neglected the maintenance of the laboratory. Boerhaave asked for new ovens and instruments as well as for more space for spectators as he had observed that the laboratory was packed with students during his private demonstrations in the preceding years. He also wanted mles for the professor for the use of the laboratory and the rebuilding of a small room above the laboratory for the use of the professor. 

Bloxam (1862) Bloxam, C.L. On the Capacity of Arsenious Acid for Bases, and on Certain Arsenites The Journal of the Chemical Society of London 15 (1862) 281-299 Blumenthal Jacobs (1973) Blumenthal, W.B. Jacobs, C.W.R. Zirconium Oxide and Zircon Pigment Handbook 1 Patton, T.C. (ed.) John Wiley, New York (1973) 95-104 Bodams (1825) Bodams, J. On a scarlet sub-chromate of lead, and its apphcation to painting and calico printing Annals of Philosophy (new series) ix (1825) 303-305 Boeriiaave (1727) Boerhaave, H. A New Method of Chemistry, Including the Theory and Practice of that Art P. Shaw E. Chambers (1r.), J. Osborn T. Longman, London (1727)... 

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