SCIENTIFIC COMMITTEE, OCTOBER 13. 



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SCIENTIFIC COMMITTEE. 



October 13, 1896. 

 Dr. Bonavia in the Chair, and five members present. 



Vines Diseased. — The following communication has been 

 received since the last meeting from Mr. Messenger, Woolver- 

 stone Gardens, Ipswich : — "I enclose a bunch of Black Alicante 

 Grapes and two leaves, one of Black Alicante, the other of Gros 

 Colmar. I am desirous of knowing the cause of the discolora- 

 tion of the stem, footstalk, and berry, and why the leaves are 

 dying at one particular place ; and, further, what remedy I should 

 apply." The following report has been received: — "The 

 foliage, leafstalk, and also stalks and some of the berries appear 

 to be infested with fungi, which I believe to be Peronospora 

 viticola, which I have seen attack vines in the same way as 

 those received. The leaves first develop whitish patches and then 

 <lry up, and the leafstalks are similarly affected. It would be 

 advisable to thoroughly scrub or paint the interior of the house, 

 limewash the walls, and remove the surface of the border, to 

 eradicate any germs. It would also be advisable to see that the 

 border is sweet and properly drained." — S. T. W. 



Potatos Diseased. — Samples were received from Mr. H. S. 

 Eartleet, F.R.H.S., of Severndroog, Shooter's Hill, characterised 

 by having spots within them. They proved to be a form of the 

 ordinary potato disease, Peronospora infestans. 



Monstrous Structures. — Mr. C. Browne, of Hextable, Kent, 

 forwarded a fasciated form of Campanula, probably the result 

 of over-nutrition; a three-sided French Bean pod, due to the 

 union of three carpels out of the typical number five ; and a 

 <louble Apple, the result of synanthy, or the union of the carpels 

 of two flowers combined. 



Apple with Bed Flesh. — Mr. Henslow showed specimens of 

 the red Apple, known as " The Ten Commandments," described 

 in Dr. Hogg's " Fruit Manual." The name is derived from the 

 ten red spots of the fibro-vascular cords passing through the 

 apple, the flesh of which is more or less of a crimson hue 

 throughout. It is a Herefordshire apple, and according to Mr. 



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