Produced by Audrey Longhurst, Hillie Plantinga and the Online Distributed Proofreading Team at http://www.pgdp.net Seven typographical errors have been corrected: Page 8, "15" changed to "18" (See Fig. 18) Page 208, "5" changed to "7" (See Fig. 7) Page 281, "does" changed to "dose" (Give a big dose of castor oil) Page 306, "he" changed to "be" (which should be covered with a single thickness) Page 348, "iself" changed to "itself" (than by the bite itself) Page 362, "dioxid" changed to "dioxide" (harmless substances as water and carbon dioxide) Page 435, "ecezmatous" changed to "eczematous" (to keep the eczematous skin area moist)…
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