[28] Heinrich Frölich, "Abul-Kasem als Kriegschirurg," Archiv für klinische Chirurgie, 1884, vol. 30, pp. 365-376. This well-presented study was reviewed by Paul Schede in Centralblatt für Chirurgie, 1884, no. 38, pp. 626-627.
[29] Johannis Freind, The History of Physick, London, 1726, vol. 2, p. 129.
[30] In several manuscripts, the chapter on the use of leeches is the last one in the second section of the treatise.
U.S. GOVERNMENT PRINTING OFFICE: 1961
For sale by the Superintendent of Documents, U.S. Government Printing Office Washington 25, D. C.—Price 20 cents