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Neave, Sheffield Airey Feeding animals
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Ministry of Food
SEC/11/1/52 · Documento · 1942
Parte de ZSL Secretaries

Letters from the Zoological Society of London to the Ministry of Food regarding requirements of fish for the feeding of the sea-lions and fish-eating birds
Institute of Child Health, University of London
SEC/11/1/35 · Documento · 1946
Parte de ZSL Secretaries

Correspondence between the Institute of Child Health at the University of London and the Zoological Society of London regarding observations of infant feeding in the Gardens