Boston: Published by White & Potter, 1847. First edition. Original printed green wrappers (lacks rear wrapper), 8.13 x 5 inches, 35,  pages. Old vertical crease; stained and somewhat foxed; wrapper and page edges worn; a good, sound copy. Item #19725
“The following cases first appeared in the Boston Medical and Surgical Journal, and in different numbers of that work. They are now published together, with such alteration as the new form requires, and with much new matter relating to the administration, and effects of Ether.” Preceded by his May, 1847 offprint from the Boston Medical and Surgical Journal published as Two Cases of Inhalation of Ether in Instrumental Labor, a pioneering work on anesthesia in childbirth from the Harvard professor of obstetrics and of medical jurisprudence, Walter Channing (1786-1876), preceding his 1848 Treatise on Etherization in Childbirth, a 400-page work of 581 case studies published by Ticknor. OCLC (May 2020) notes 12 locations of Six Cases. Early ink autograph note across the head of the front wrapper, “$8 per Hundred.” Early pencil ownership signature at the head of the title for S. C. Pettingill, presumably the contemporary physician in Hancock, N.Y.