154 CORRESPONDING SOCIETIES' COMMITTEE. Plants. As many plants are in serious danger of extermination by trade-collectors, students of botany, and others, it seems necessary to appeal to legislation for their protection ; but it was suggested that before this could be secured, a leaflet might be distributed among teachers, and, perhaps, a "Reader" published, explaining the danger to which certain rare plants are subjected, and pleading for the conservation of objects of natural beauty and scientific interest. The subject was warmly taken up by the delegates, and their local influence at field-meetings and in nature-study classes will probably be of much service. It is the usual practice at the annual Conference of Delegates to receive reports from the Committees of the several sections of the Association, with reference to any local work which might be usefully undertaken by the Societies. In consequence, however, of the meeting having been held this year in South Africa, the sections were not sitting during the London meeting. For this reason no detailed reports or suggestions were received, but a few of the secretaries of the sections had sent short letters, one of which ought to be of some interest to our Club. Dr. H. W. Marett Tims, of Cambridge, who acted as Secretary of the Section of Zoology in South Africa, wrote explaining that he had not been able to communicate with the Sectional Committee, but on his own responsibility suggested the following subjects as worthy of local consideration, namely :— 1. A systematic study of the fresh-water Plankton of East Anglia. 2. A study of the Rotifera of East Anglia. This suggestion your delegate undertook to bring to the notice of the Essex Field Club, and if some local naturalists can be induced to follow it up, the Conference may be indirectly the means of adding something to our knowledge of East Anglian zoology.