114 JOUENAL OF THE EOYAL HOETICULTURAL SOCIETY. 



Streaks or mines of the same type were also found on R. nigrum and 

 R. Grossularia. During the past summer insect larvae were secured 

 from both Eibes and trees, but the Eibes-miners differed much from the 

 tree-miners, though superficially they appeared similar. Those from 

 Eibes proved to be caterpillars of a Tineid moth, and were identified 

 by A. Busch as Opostega nonsirigella Ch. — V. G, J. 



Cameroon, Some useful Woods of. II. Leguminosae. By 



H. Harms {Not. Konig. Bot. Berlin, Appendix xxi. No. 2; pp. 9-75; 

 July 1911 ; with text-figs.). — An account is given of the various col- 

 lections which have been made of the leguminous woods of the Cameroon 

 district. It is pointed out that great precaution is necessary in making 

 such a collection. It is not sufficient to label each specimen with the 

 local name of the tree, as these names are usually not precise, but often 

 include a number of different species or even genera under a single 

 denomination. It is necessary, when collecting a specimen of wood, 

 to gather at the same time representative material of the leaves, flowers, 

 and fruits of the tree, so that each block of wood is accompanied by 

 sufficient herbarium material to ensure the correct identification of the 

 tree from which it is derived. Harms states that transverse sections are 

 the most valuable in distinguishing these woods. The form in which the 

 wood parenchyma is distributed amongst the fibrous tissue is very 

 important in the Leguminosae. Tangential sections also afford valuable 

 information regarding the form and height of the medullary rays, which 

 are often of importance in the determination of the wood. A large 

 number of species of leguminous trees from this part of Africa are then 

 described and the character and economic importance of their wood 

 referred to. Many excellent figures both of the leaf, flower, fruit, &c., 

 of the tree, and also (semi-diagrammatic) of sections of the wood, accom- 

 pany the text. — R. B. 



Campanula longistyla parviflora. By D. Bois {Rev. Hort. 



pp. 548-9; Dec. 1, 1911; coloured plate and illustration). — The 

 plate represents a very handsome inflorescence of deep mauve flowers 

 about one inch long; and the illustration, a pot plant showing a very 

 floriferous specimen of somewhat compact habit about a foot high. 

 Probably hardy, Transcaucasian, but a little winter shelter suggested. 

 MM. Oayeux and Le Olerc, of Vitry (Seine), are the growers. 



C. T. D. 



Canning- Peaches on the Farm. By H. P. Gould and W. F. 



Fletcher {U.S.A. Dep. Agr., Farmers' Bull. 426, 1910).— As in all 

 fruit-producing areas, a good season for peaches often means a glut in 

 the market and low prices, so that a canning equipment is a great 

 stand-by to the grower. 



This bulletin is not meant for the expert canner, but gives pre- 

 liminary information where required. 



The most important point in the whole matter is the complete 

 sterilization of both the can and its contents in the final operation of 

 the canning process. Success or failure depends upon this. 



