IV CONTENTS. [Vol. 41 



Page. 



Rice [in Argentina], Ito 533 



Preliminary notes on rice selection worli at Saigon, Carle 533 



The transplanting of rice in Egypt, Mosseri 533 



Utilization of rice and its by-products 533 



A forage plant from the Solanacese family, Hunnicutt 533 



Fertilizer experiments with sugar cane [at Tucuman], Cross 533 



Experiments on stripping [sugar] cane. Cross 534 



Costs of production in the sugar industry 534 



Germination of tobacco seed. — III, Light and darkness, Goodspeed .534 



Nomenclature of wheats grown in South Africa 534 



Kota, a rust resisting variety of spring wheat, Waldron and Clark 535 



Results of wheat variety and manurial trials, season 1918-19, I-II 535 



Irrigation and protein content of wheat, Jones, Colver, and Fishburn 535 



Official field crop inspection, Bolley 536 



The size of seed, Findlay 536 



Seed Reporter 537 



Weeds in relation to forage : Determination of fruit and seed, Naumann_ 537 



Tests of chemical means for the control of weeds. Gray 537 



The use of chemical sprays for combating weeds, Adams 537 



Eradication of weeds by sprays and manures, Brencliley 538 



HOKTI CULTURE. 



Practical vegetable gardening, Bottner 538 



Grow your own vegetables, Johnson 538 



The garden frame for food and flowery Rowles 538 



[Report on horticultural work, 1918], Macoun et al 538 



The carob in California, Condit .538 



Notes on the dasheen and chayote, Youngken 538 



Hardy fruit culture, Lawrance 538 



The fruit growers' yearbook and market gardeners' guide, 1918 538 



Decade records in Ohio apple orchards, Nos. 2 and 3, Gossard .538 



Using an apple sizing machine, Lewis .539 



Experiments with citrus trees, Floyd 539 



Report of assistant plant physiologist, Nothnagel 539 



Citrus experiment grove, Collison .540 



Citrus growing in South Africa. — Oranges, lemons, naartjes, etc., Davis 540 



Culture, selection, and manuring of coconuts, McRae and Anstead 540 



The coconut in Cochin China, Morange 540 



FOEESTET. 



Forest management, Recknagel and Bentley, jr .540 



A National Forest policy. Graves 540 



Natural afforestation in a New Zealand mountain area, Morrison 541 



The Douglas fir, a tree giving large returns, Manvilli 541 



The collection and some uses of the oleoresin of Douglas fir, Mahood 541 



The Hawaiian genus kokia. — A relative of the cotton, Rock 541 



The true mahoganies, Rolfe 541 



Mahogany, recognition of kinds by microscopic characteristics, Dixon 541 



A. Field tests with Hevea. — B. Germination trials with Hevea, Maas 541 



Structure of cell elements in bark of Hevea brasiliensis, Bobilioff 541 



A'ariability in plantation rubber, de Vries and Spoon 542 



Relation of specific gravity of latex to rubber content, de Vries 542 



Tapping experiments on Hevea bramliensis, de Jong 542 



The application of preservatives to renewing bark of rubber, Petch 542 



DISEASES OF PLANTS. 



Report of associate plant pathologist, Sherbakoff 542 



Report of the acting Dominion botanist, Grisdale 543 



Mycology and plant pathology', Butler .543 



Plant diseases, Hutchinson 543 



Diseases and animal pests of cultivated plants in East Indies, van Hall 544 



Biologic specialization in the genus Septoria, Beach 544 



Wheat diseases in .Java, Palm 544 



The control of rust |in Manitoba], Jackson 544 



