[170] Made by the Abbott Laboratories, Chicago, and accepted by the Council on Pharmacy and Chemistry for New and Nonofficial Remedies, The Journal, May 12, 1917, p. 1406.
[171] No chemical examination was made.
[172] Sollmann, Torald: Suggested Formulas for Paraffin Films, The Journal A. M. A., April 7, 1917, p. 1037.
[173] Hull, A. J.: The Treatment of Burns by Paraffin, Brit Med. Jour., Jan. 13, 1917, p. 37; The Treatment of Burns by Paraffin, Therapeutics, The Journal A. M. A., Feb. 3, 1917, p. 373.
[174] The “soft paraffin” of the British Pharmacopeia resembles petrolatum, U. S. P., Queries and Minor Notes, The Journal A. M. A., April 28, 1917, p. 1281.
[175] The paraffin used in this formula was supplied by the Standard Oil Company of Indiana; the melting point given by the manufacturers is from 120 to 122 F., which, according to the American Standard of taking melting points, gives higher results than the method described in the pharmacopeia.
[176] The “Asphalt Varnish” used was obtained from Remien & Kuhnert Company, Chicago.
[177] While needless, a color resembling “Ambrine” may be obtained by the addition of coloring agents.
[178] In a personal communication Dr. Sollmann expressed the opinion that the synthetic preparation is inferior to the paraffin used in the formula, basing the view on the greater plasticity of the paraffin. For practical purposes, the paraffin will most probably serve as well as the mixture, especially when it is held in place by bandages, but I believe that the mixture is more adhesive.
[179] Paraffin is sometimes spoken of as “white wax.” This is unfortunate, as “white wax” is an official name for “White Beeswax, U. S. P.” The term “white wax” is also often applied to “Chinese wax,” which is formed from an insect living on the tree Ligustrum lucidum.