Vorlage:Opinion 57

• International Commission on Zoological Nomenclature 1956. Direction 32. Addition to the "Official list of works approved as available for zoological nomenclature" of the titles of certain works dealt with in "Opinions" rendered in the period up to the end of 1936 and to the "Official index of rejected and invalid works in zoological nomenclature" of certain works similarly dealt with in the same period and matters incidental thereto. Opinions and declarations rendered by the Internationl Comission on Zoological Nomenclature 1 Section C. Pp. 311, 319 (Opinion 57).