114 



Botrytis cinerea on Secale, Avena, Trifolium pratense, Lotus comicu- 

 latus, Omithopus, Lupinus, Vicia sativa, Pisum, Spinacia, Cannabis, 

 Brassica, Daucus, Nicotiana, Cucumis, Lactuoa, Scorzonera, Cichorium. 



Diplodia Maydis on Zea Mais. 



Mycosphaerella hordei on Hordeum. 



Phoma on Brassica, Lintun, Trifolium pratense, Medicago sativa, 

 Lupinus, Apium. 



Oleosporium Lindemuthianum on Phaseolus. 



Qleosporium Uni on Linum. 



Ascochyta Pisi on Pisum sativum. 



Ascochyta graminicola on Secale. 



Septoria graminum on Hordeum. 



Cephalosporium Acremonium tinth Melanospora damnosa on Triticum, 

 Hordeum, Avena. 



Professor Mohammed Showky Bakir then gave a short but 

 interesting account of the pink boll worm (a pest of South Asiatia 

 origin), which attacks the most important Egjrptian crop — 

 cotton — with disastrous effects. He stated that this pest had 

 been introduced into his country since 1890 through the importa- 

 tion of Indian cotton, and that it spread rapidly because conditions 

 were favourable. The delegate stated that both chemical and 

 mechanical means had been tried in order to combat this pest, 

 and that finally the hot-air method had been adopted. Three 

 hot-air machines were tried and ultimately one, known as the 

 " Auto-regulator," was found to be effective. The Professor 

 displayed to the meeting various pictures and exhibits Ulustrating 

 his remarks and also diagrams of the various machines which 

 he mentioned. In conclusion he asked that the other countries 

 represented at the Congress — especially the United States of 

 America — -would assist Egjrpt in her difficult work of fighting this 

 pest. 



At the conclusion of the morning session the foreign Delegates 

 were entertained at lunch at Magdalene College by the Master, 

 Dr. Arthur C. Benson, C.V.O., LL.D., and the Fellows of the 

 College.* 

 Afternoon Session. 



The Congress resumed at 2.30 p.m. 



Sir Lawrence Weaver announced the attendance of Mr. Elmar 

 Kirotar, Secretary to the Esthonian Legation in London, who 

 had been empowered by the Esthonian Government to represent 

 them. 



Dr. Volkart's Draft Constitution, as amended by the Pro- 

 visional Committee appointed on Tuesday, was then considered, 

 copies having been distributed to the Delegates. Sir Lawrence 

 Weaver read the clauses one by one, making explanatory 

 comments ; the clauses and comments being subsequently given 

 in French and German respectively. Each clause was submitted 

 in turn to the Congress and unanimously approved, subject to 

 one or two minor verbal amendments. 



* The speech delivered by Dr. Benson on this occasion is given on 

 pp. 143-144. 



