XX Jonrudl of ProceedLitijs. 



Saturday, May 28tii, 1881. — Okdixahy Meeting. 



The sixteenth Oixlinary Meeting was held at the head-quarters at seven 

 o'clock, the President in the chair. 



Donations of books or pamphlets (exclusive of exchanges) were 

 announced from Miss M. Bentley (6 vols.), Dr. Chambers (4 vols. foUo), 

 Mi\ J. E. Harting, Mr. Fisher Unwin, and Mr. W. AVliite. A unanimous 

 vote of thanks to the donors was passed. 



The Librarian announced that during the recess the Library would be 

 open for the exchange of books every Thursday evening from seven to 

 nine o'clock. 



The following were balloted for and elected members of the Club : — 

 Miss Madeline Bentley, Samuel D. Chppingdale, John Collingridge, 

 George Corbie, G. S. Gibson, J.P., F.L.S., D. G. F. Macdonald, J.P., 

 LL.D., C.E., &c.. Major Munro, Burnett Tabrum, J. Smyth Till, 

 Mrs. Warburg, and George Weller, M.R.C.S. 



Mr. Eughsh exliibited some flowers preserved by his process, illus- 

 trative of the advance he was still making in working out the practical 

 details. 



Mr. W. Cole said he thought the members would be pleased to hear 

 that, at the Grays Meeting, an addition to the fauna of Essex had been 

 made. Mr. W. F. Gwinnell pointed out to him a reddish gall upon the 

 mugwort {Artemisia vulgaris), which he had failed to recognise ; but on 

 submitting specimens to then- Vice-President, Mr. Fitch, that gentleman 

 had pronounced it to be a gall, new not only to Essex, but to Britain — 

 made by one of the Gall-gnats (Cecidomyidffi), Cecidomyia folioruni, 

 H. Loew. I\Ir. Cole could do little more than announce the fact, but 

 hoped that some information respecting the insect and its gall would 

 shortly be forthcoming. The Club was promised a complete list of the 

 Galls of Essex, with biological notes, by Mr. Fitch, which it was hoped 

 would give an impetus to the collection and study of these interesting and 

 obscure productions. 



Mr. Henry Walker said that, whilst on the subject of galls, he might 

 call attention to one which he held in his hand, and which he had found 

 plentifully when taking shelter under some trees at Buckhurst Hill during 

 the storm that afternoon. They were the production of an Aphis known 

 to entomologists as Fenqihiuus bursariiis. The presence of the insect, by 

 some hritating but Httle understood process, leads to the formation of 

 large hollow swellings on the petioles of the leaves of the Lombardy 

 Poplar. On cutting open the galls the apterous larv£e and full-grown 

 Aphis can readily be obtained, and with a little care the winged forms 

 could be bred from the infested petioles of the poplar. 



The President stated that the members of the Club present at the last 

 meeting would probably remember that, in connection with Mr. English's 

 remarks upon "sugaring" for moths, he had suggested the experiment of 



