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Burlington, Iowa, Aug. 23, 1904.
To the Editor:
—I notice a suggestion in Dr. Bulkley's "Notes on Ointments," which I consider inadequate, if not misleading. Otherwise we would not have the perennial complaint from ophthalmologists that it is hard to get satisfactory "yellow oxid ointment." This suggestion is that gritty substances should first be rubbed up with a few drops of oil in a mortar to make a fine paste. I object to the use of the mortar because a sheet of plate glass and a spatula are better. Only with the latter can one be absolutely sure that no gritty particle is missed. No oil or water is needed. The spatula, holding a modicum of the base (just enough to do it), picks up the grits, which are then rubbed out until they can be rubbed no farther, and the spatula cleans itself. Not only can every particle of
Young HB. Method of Making Yellow Oxid Ointment. JAMA. 1904;XLIII(10):684. doi:10.1001/jama.1904.02500100042015
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