52 PllOCEEDINGS OF THE 



condition, the older sexual phase remaininf^ as a sapropliyte and 

 developing when tho host is exhausted. Parasitism is mainly the 

 outcome of opportunity : and the fact that fungi present all stages 

 of parasitism, and that a saprophytic fungus can be educated to 

 hecome a parasite, proves that parasitism is an acquired habit. 

 Incipient or imperfectly evolved parasites promptly kill the host, 

 and consequently curtail the ])eriod of their own existence, as 

 Ft/thhcm De Baryanian. A higlier stage of parasitism is reached 

 by many of the rusts and smuts, Ustilar/o aveyxp, &c., where the 

 host is attacked as a seedling, and is stimulated to an unusual 

 condition of growth throughout its normal period of growth. 

 ]\f ore advanced parasites show a tendency to arrest the production 

 of spores and conidia, and to perpetuate tliemselves by perennial 

 mycelium located in some perennial vegetati\e portion of the host 

 (root, tubers, &:c.) or in the seed. In the most highly evolved 

 parasites reproductive bodies are entirely arrested, and the parasite 

 is perpi^tiiated by hybernating mycelium only. 



In the discussion which followed the speakers were Mr. H. W. 

 Monckton, V.-P., Miss A. L. Smith, Dr. Helen Fraser, and Prof. 

 Dendy, Mr. Massee replying. 



The following papers (communicated by Prof. J. Stanley 

 G.^RL)iNKn, ]\[.A., iMi.S., F.L.S.) were read : — 



1. " The Orneodidte and Pteroplioridae of the Seychelles Expe- 



dition." By T. B. Fletcher, E.N., F.E.S. ' 



2. " Die von Herrn Hugh Scott auf den Seychellen gesammelten 



Embiidinen, Coniopterygiden, uud Hemerobiideu." By 



Dr. GxJKTHER EXDERLEIX. 



3. " Die Termiten der Seychellen-Kegion." By Dr. Nils F. 



HOLMGREX. 



4. " On the Land and Amphibious Decapoda of Aldabra." By 



L. A. BORRADAILE, M.A. 



March 3rd, 1910. 



Mr. H. W. Monckton, Treasurer and Vice-President, 

 in the Chair. 



The Minutes of the General Meeting of the 17th February, 

 1910, were read and confirmed. 



Mr. Hugh Scott was admitted a Fellow. 



Miss Winifred Elsie Brenchley B.Sc. (Lond.), Mr. James 

 Meikle Brown, B.Sc. (Lond. & Sheff.), and Mr. Hayward Eadcliffe 

 Darlington, M.A., LL.M. (Cantab.), were proposed as Fellows. 



Mr, W. BiCKERTON, F.Z.S., M.B.O.U., gave a lantern lecture 



