1. The following publications are those referred to directly in the text. A full bibliography
2. appears on the accompanying microfiche numbered as in the second column. A photocopy is
3. available from the Royal Society Library at cost.
4. N.Z. J. Sci. Tech. A 23 1941 (With E.E. Chamberlain) A virus disease of cultivated daphne
5. 254-256.