Sub-series 3 - Revision of Bye-Laws correspondence

Founded in 1826, the Zoological Society of London (ZSL) is an international scientific, conservation and educational charity whose mission is to promote and achieve the worldwide conservation of animals and their habitats. It runs the Institute of Zoology, conservation projects in more than 50 countries, and two Zoos, ZSL London Zoo and ZSL Whipsnade Zoo