Document 1/52—Stability in Zoological Nomenclature. Answers to Questions in Paragraph 39 in the Paper by the Secretary to the International Commission on Zoological Nomenclature. Extracts from Letters Dated 20th August and 19th September 1952 by W. E. China

Document 1/53—Comment on the Moore/Sylvester-Bradley "Parataxa Plan". Letter Dated 24th January 1958 from R. V. Melville covering a Report of a joint Meeting of the Palaeontographical Society and of the Palaeontological Association Held in London on 22nd January 1958

Document 1/53—Statement by the Nomenclature Committee of the American Museum of Natural History, New York. Enclosure to a Letter, Dated 28th August 1952 from, Ernst Mayr

Document 1/54—Comment on the Moore/Sylvester-Bradley "Parataxa Plan"

Document 1/54—Extract from a Letter Dated 4th September 1952 by K. H. L. Key

Document 1/55—A propos de l'introduction des Parataxons dans la Nomenclature Zoologique

Document 1/55—Statement Furnished by the American Society of Parasitologists

Document 1/56—Comment on the Moore/Sylvester-Bradley "Parataxa" Plan

Document 1/56—Stability and the Plenary Powers. Extract from a Letter Dated 8th January 1953 by Joshua L. Baily, Jr.

Document 1/57—Comment on the Moore/Sylvester-Bradley "Parataxa Plan”