A memorial to the employees of the Zoological Society of London killed on active service in World Wars I and II stands to the east of Three Island Pond, having been moved from a site near the Main Gate. Its design is taken from a medieval French Lanterne des Morts at La Souterraine, in the Creuse valley. It was installed in 1919, John James Joass, architect. Moved 1952.
The Wellcome Building is a research centre built as the Wellcome Institute of Comparative Physiology. The Institute was established for the study of reproductive physiology by Zoological Society of London staff and Ford Foundation Fellows, and is now part of the Institute of Zoology. Built 1963, Franz Stengelhofen, architect.
The West Footbridge arose from Franz Stengelhofen's 1950 Development Plan. It was designed to improve links between the North and Middle Gar dens and was ultimately built as part of the Cotton Terraces Development. Built 1960-61, funded by Jack Cotton; Sir Hugh Casson, Neville Conder and Partners, architects (Frank Shaw, associate architect)' Stephen Revesz, consulting engineer. The footbridge is now listed.
