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Descripción archivística
Memorandum on Fertility Rates
SEC/9/2/28/10 · Unidad documental simple · 17 July 1935
Parte de ZSL Secretaries

Memorandum regarding periods of fertility and the fertility rates of the various species of mammals on Exhibition at the Gardens of the Zoological Society of London since 1826

Philadelpia Zoo
CUR/7/3/17 · Unidad documental compuesta · 1949
Parte de Curators and Keepers

Correspondence with Philadelphia Zoo regarding the transport of snakes and the breeding of Tarsiers