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On wakefulness : with an introductory chapter on the physiology of sleep / by William A. Hammond.
- Hammond, William A. (William Alexander), 1828-1900.
About this work
Philadelphia : J.B. Lippincott Co, 1866.
93 pages ; 19.5 cm
An enlarged and partly rewritten edition of the author's article "On sleep and insomnia" published in the New York medical journal for May and June 1865. cf. Pref.