EXTRACTS OF PROCEEDINGS. 



lix 



and the plant reverts to yellow. No plant taken from the yellow 

 ever produces a striped flower. 



Grapes Grown m the Dark. — Messrs. T. Rivers & Son sent 

 a portion of a Vine bearing a well-shaped and good-sized bunch 

 of white Grapes. They were very pale-coloured, and apparently 

 unable to ripen. The rod appeared to have formed no leaves, 

 the whole shoot having been developed in total darkness. 



Foliage Injured by Sulphuric Acid. — Professor Church ex- 

 hibited leaves of various plants which were dried, shrivelled, and 

 blotched, or streaked with red. They were taken from plants in 

 a hothouse, and also from a second, the door of which faced that 

 of the first. The injury resulted from the presence of free sul- 

 phuric acid, which, there was little doubt, arose from some small 

 leakage in the flue. The subject of injury by gases will be 

 found discussed by Herr L. Just and H. Heine ("Landwirthsch. 

 Versuchsstat." xxxvi. 1889). See also "Bot. Centralbl. xl. 

 1889, p. 296). The authors consider sulphurous acid to be the 

 most injurious. When taken into the tissues it is oxidised into 

 sulphuric, which destroys the protoplasm, and ultimately causes 

 the death of the plant. 



Kcempferia Tubers. — Mr. Morris exhibited specimens of 

 tuberous roots produced by a species of Krempferia at Trinidad, 

 and used as food under the name of Toppee Tambo. Mr. J. H. 

 Hart, F.L.S., the sender of the specimens, stated that the small 

 tubers are preferred, and these are boiled and eaten like a Potato 

 with salt and butter. They have an agreeable nutty flavour, 

 and are much liked by the people. Similar tuberous roots are 

 used at Dominica under the name of Tohhee Tambo. Mr. Morris 

 added that this was an interesting record of the use of the 

 swollen roots of a Scitamineous plant for purposes of food, and 

 he suggested that they might be carefully investigated. Professor 

 Church was good enough to undertake an examination of the 

 specimens, and report the results at a subsequent meeting. 



NATIONAL AURICULA AND PRIMULA SOCIETY. 

 The Southern Section of the above Society held its Annual 

 Exhibition in the Drill Hall in conjunction with the Society's 

 meeting. Notwithstanding the lateness of the season, the 

 display of Primulas and Auriculas was much better than had 



