SCIENTIFIC COMMITTEE, NOVEMBER 10. 



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Scientific Committee, November 10, 1908. 



Mr. E. A. Bowles, M.A., F.L.S., F.E.S., in the Chair, and ten members 



present. 



Grease bands. — Mr. Voss, F.C.S., showed a grease band from a Plum 

 tree from a fruit garden at Enfield Highway. The grease band was about 

 6 inches wide, and upon it were a few specimens of the female winter 

 moth, Cheimatobia brumata. The band had been on the tree a month, 

 but not till now had any winter moth caterpillars been caught. The 

 insects were near the bottom of the band. Mr. Voss promised to send up 

 a band from the same garden to each meeting. 



Fasciation in Mushroom. — Mr. Worsdell, F.L.S., showed a fasciated 

 specimen of the common Mushroom, Agaricus campestris. Fasciation is 

 apparently very uncommon in fungi. 



Abnormality in Bubus. — Mr. Fraser, F.L.S., showed a specimen of 

 Bubus rhamnifolius, with foliaceous sepals and adventitious roots at the 

 base of the fruiting panicles, which are mostly flowerless. The inter- 

 nodes of the fruiting panicles (or what should have been such) are very 

 little developed on the whole of last year's stems. Barren stems and 

 leaves of this year are normal. 



Scientific Committee, November 24, 1908. 



Mr. E. A. Bowles, M.A., F.L.S., in the Chair, and twelve members 



present. 



Grease bands. — Mr. Voss, F.C.S., showed another grease band taken from 

 the same tree as that shown a fortnight ago which had been placed upon 

 the tree in succession to that. A considerable number of female winter 

 moths had been captured near the base of the band, and a larger number 

 of males. All, with one exception, belonged to Cheimatobia brumata, the 

 exception being a male Hibernia aurantiaria. 



Weevils in seeds. — Mr. Saunders, F.L.S., reported that the seeds of 

 Abrus precatorius which were received from Mr. Bowles were attacked by 

 a species of Bruchus allied to, though not identical with, B. pisi. The 

 weevils were nearly as large as the seeds in which they occurred. 



Silver-leaf in Plums. — Mr. Worsley showed a portion of the trunk of 

 a Plum tree which had been attacked by " silver-leaf " disease, caused by 

 the fungus Stereum purpureum. The discoloration of the wood appeared 

 to start from the place where the bud had been inserted. Mr. Worsley 

 also showed a seedling form of Chrysanthemum indicum and Jatropha 

 podagrica attacked by Botrytis cinerea. 



Marks upon Apple. — Mr. Saunders, F.L.S., showed a drawing of an 

 Apple which had a curious looking brown mark stretching up one side of 

 it about three-sixteenths of an inch in breadth. It was thought that this 

 had probably been caused by the destruction of the epidermis as by a 

 scratch at an early stage of the development of the fruit. 



Stapelia gigantea. — Mr. Bennett-Poe, V.M.H., showed a flower of this 

 species measuring about 11 inches in diameter. 



