SCIENTIFIC COMMITTEE, DECEMBEK 21. CCXXXV 



ably larger. The seed had been produced eight years ago by a plant at 

 Clevedon, and it appears rare to find it fruiting in this country, though 

 the plant is often cultivated and is well known under the name of 

 Gloneria jasminiflora. 



Trees attacked by voles. — Examples of maiden Apple trees with their 

 bark bitten off below the ground level all round the stem, and the roots 

 eaten, were received from Chard, Somersetshire. The committee was of 

 opinion that the damage was the work of field voles. It was pointed out 

 that the best way of checking the spread of these pests was by encouraging 

 owls and kestrels. They may sometimes be trapped by digging pits wider 

 at the bottom than the top, and they may be driven away by injecting 

 carbon-bisulphide into the soil at the rate of about \ ounce to the square 

 yard, or by the use of paraffin poured in small quantities around the trees, 

 taking care not to touch the trees with the liquid. 



Malformed Cyclamen. — From Mr. Eickards, of Usk Priory, Monmouth, 

 came a malformed Cyclamen, having the sepals developed into foliage 

 leaves. 



Scientific Committee, Decembek 21, 1909. 



Mr. E. A. Bowles, M.A., F.E.S, F.L.S., in the Chair, with four members 

 present, and Mr. G. Wilson, F.L.S., visitor. 



Nomenclature of Garden hybrids and varieties. — The Committee had 

 under consideration a number of questions referred to the Society by the 

 Committee of the Brussels Horticultural Congress. Beplies to these 

 questions were drafted and the matter referred to the Chairman and 

 Secretary to cast in a more complete form and send to the Secretary of 

 the Congress, M. Cogniaux. 



Seedling Oncidium. — Mr. Wilson, F.L.S., showed a flower of a hybrid 

 Oncidium (0. tigrinum x 0. lamelligerum) raised by Messrs. Charles- 

 worth. This is the first recorded seedling of an Oncidium raised in this „ 

 country. 



Chlorosis in Laurels. — Mr. J. W. Odell showed specimens of Laurels 

 from Hampshire with yellowish foliage. This condition may be due to 

 any of a variety of causes, and the green colour is frequently recovered 

 after an application of sulphate of iron. It is perhaps most frequent 

 where chalk forms the subsoil. 



