PROCEEDINGS, 1921.

MEETING. UNIVERSITY COLLEGE, LONDON. Jan. zznd

Mr F. T. BROOKS. Investigations on some tomato fruit diseases. Dr E. J. BUTLER. The Imperial Bureau of Mycology. Miss G. LISTER. A new genus of Mycetozoa. Mr T. PETCH. Thread Blights. Mr J. RAMSBOTTOM. Orchid culture.

MEETING. UNIVERSITY COLLEGE, LONDON. March 1g .h

Dr R. ST JOHN BROOKS. National Collection of Type Cultures. Dr W. BROWN. Studies in the physiology of parasitism. Mr A. D. COTTON. The Ministry of Agriculture's plant disease survey Dr P. HAAR. Carrageen as a culture medium. Dr A. S. HORNE. A pieomorphic Aposphaeria. Mr R. PAULSON. P r o t o c o c c ~ ~ as the gonidium of a Lichen. Miss A. LORRAIN SMITH. The lichen as transmigrant.