Junk, L920] MORPHOLOGY, ETC., VASC. PLANTS 355 



2404. Smith, Harold Ham el. The London cocoa market. Tropical Life 15:7S-80. 

 L919. A continuation of the discussions of this subject in preceding numbers of this Journal. 

 Tins article pays especial attention to the effect of the preferential duty of 7 shillings per 

 hundred weigh! for British colonial cocoa. [See also Entries 2400, 2401, '_' lO'J, 2-103, 2405.]— 

 //. A. Vinall. 



2405. Smith, Harold Hamel. The London cocoa market. Tropical Life 15:93-96. 

 1919. — A continuation of previous discussions of the trade movements and present stocks of 

 cacao, especially at London and Havre. An appeal is made to London buyers and manu- 

 facturers of cocoa to purchase more of the better grades from the British West Indies. [See 

 also Entries 2100. 2401, 2402, 2403, 2404.]—//. N. Vinall. 



2406. Triholet, J. Fruit drying. Union South Africa Dept. Agric. Bull. Local Ser. 85: 

 1-11. 4 fig. 1919. 



2407. VlEHOVER, Arno. Chinese colza, a valuable new oilseed. Oil, Paint and Drug 

 Reporter 96 10 : 53. 4 fig. 1919.— See Bot. Absts. 3, Entry 1673. 



MORPHOLOGY, ANATOMY AND HISTOLOGY OF VASCULAR 



PLANTS 



E. W. Sinnott, Editor 



2408. Anonymous. The anthocyanin pigments in plants and their chemical, physiologi- 

 cal and biological functions. Review of a number of recent papers and books on the antho- 

 cyanin pigments of plants. Sci. Amer. Suppl. 84: 2-3, 7. 1919. 



2409. Anonymous. [Rev. of : Malmanche, L. A. Contribution a l'etude anatomique des 

 Eriocaulonacees et des families voisines: Restiacees, Centrolepidacees, Xyridacees, Phily- 

 dracees et Mayacacees. (Contribution to the anatomical study of the Eriocaulonaceae and 

 related families: Restiaceae, Centrolepidaceae, Xyridaceae, Philydraceae and Mayacaceae). 

 Thesis for the degree of doctor of science. Girault: St. Cloud, Paris, 1919.] Bull. Sci. 

 Pharm. 26: 297. 1919— See Bot. Absts. 3, Entry 1696. 



2410. Arisz, W. H. De structuur van het melksapvaatstelsel bij Hevea. [The structure 

 of the laticiferous system of Hevea.] Arch. Rubbercult. Ned.-Ind. 3: 139-155. 1919. — Con- 

 trary to previously obtained results it is shown that the various concentric layers of latex 

 vessels in the stem are connected. These communications are made by a single latex vessel 

 or by more than one or by double bifurcation. The latter gives most complete communica- 

 tion. The larger number of layers at foot of tree is mostly due to communication layers. 

 The laticiferous vessels in main root are continuations of same vessels in stem. Where lat- 

 eral root is formed the outer lacticiferous vessels degenerate and only deepest layers con- 

 tinue in lateral root. In lateral branches the number of laticiferous layers depends on age. 

 Secondary and tertiary lateral branches have only one laticiferous layer from which the latex 

 cannot flow to the tapping cut because the continuation of this layer in the stem has degener- 

 ated. Because of the existence of communication between adjacent latex vessels laticiferous 

 layers not opened by the tapping operation can in the long run have influence on the latex 

 yield. Latex in the leaves and secondary and tertiary lateral branches is of no value in 

 tapping.— W. E. Cake. 



2411. Bailey, Irving W. Phenomena of cell division in the cambium of arborescent 

 gymnosperms and their cytological significance. Proc. Nation. Acad. Sci. [U. S. A.] 5: 2S3-2S5. 

 July, 1919— See Bot, Absts. 3, Entry 1932. 



2412. Bailey, I. W. Histology of phloem. [Rev. of MacDaniels, L. H. The histology 

 of the phloem in certain woody angiosperms. Amer. Jour. Bot. 5: 347-378. 1918. (See Bot. 

 Absts. 1, Entry 578.)] Bot. Gaz. 67:276. 1919.— The reviewer regards the work of the 



