SCIENTIFIC COMMITTEE, FEBRUARY 9 & 23. 



XXXV 



Ixia diseased. — Mr. Shea showed leaves of Ixia crateroides, with the 

 foliage discoloured. There was no fungus present, the appearance being 

 thought to be due to hereditary predisposition. 



Eucalyptus with Nodules. — Mr. Saunders showed small plants with 

 nodules on the stem close to the ground. Nothing could be found inside. 

 Mr. Massee, V.M.H., observed that ants can cause similar nodules on 

 Roses, the formic acid acting as an irritant ; knots can also be produced 

 artificially. 



Scientific Committee, February 9, 1904. 

 Dr. Masters, F.R.S., in the Chair, and eleven members present. 



Beans defective.— Mr. Horsley, Winsford, sent some mould in which 

 Beans had been grown under glass, but failed. The Beans were old. It 

 was thought that the soil was too light, with possibly deficient sunlight, 

 and the Beans being old might have made them difficult to germinate, 

 Mr. Baker undertook to investigate the matter. 



Coloured Photos of Orchids.— Mr. Hickley, Bassett, Southampton, 

 exhibited some very beautiful transparent illustrations of Orchids in their 

 natural colours. They were effected by a special process on plates 

 sensitive to the primary colours — red, green, and violet — but the special 

 treatment by which the excellent results were secured is not yet patented. 



Tropceolum tuberosum as edible. — Mr. Bowles reported that the 

 result of his trial was that while they were certainly edible he could not 

 recommend them as palatable. 



Scientific Committee, February 23, 1904. 

 Dr. Masters, F.R.S., in the Chair, and fifteen members present. 



Coloured Photos. — Mr. Hickley exhibited some more miscellaneous 

 transparent photographs of vases and bouquets, done by his new process. 



Cyclamen malformed. — Mr. Odell showed specimens in which the 

 petioles and peduncles were fused together, but not fasciated. The con- 

 dition was remarkable, having been persistent for six years on the same 

 plant. 



Silver Fir diseased. — Mr. Massee, V.M.H., showed a branch attacked 

 by Mcidium elatinum. The Uredo form known as Melampsorella Cerastii 

 attacks members of the order Caryovhyllacece. He observed that the 

 disease of the Birch caused by Phytoptus is spreading greatly in the 

 neighbourhood of Kew. 



Cyprivedium malformed. — Dr. Masters described an unusual form of 

 a blossom, which had four sepals, two petals, one column, with two 

 staminodes, but a three-lobed stigma and three parietal placentas. It 

 was thus a case of increased numbers of parts, or an attempt at forming 

 a multifold flower. 



Cineraria, supposed Disease.— Dr. Cooke reported upon some leaves 

 sent by Mr. Voss, of Norwood : — "I could find no parasitic mould upon 

 the leaves ; and although I examined the tomentum of the under surface 



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