Studies in Spermatogenesis, 2 volumes. With Especial Reference to the "Accessory Chromosone" & Sex Determination
Washington DC: Carnegie Institution, 1905-1906. First printing. Paperback. 2 volumes, tall 8vo, publisher's grayish wraps, first volume in good condition with some light chipping, covers toned and tanned, some light wear and stains along front joint, second volume very good, minor toning to wraps. 74 pp. total, 15 plates total.....