IV CONTENTS. [Vol. 43 



Page. 



Caprifigs and caprification, Condit 238 



A non-splirtlng Smyrna fig and its history, Kixford 239 



The Kadota fig, Clark 239 



The hybrid bearing grapes in 1919, Pee-Laby 239 



The tal)le rai'^in hybrids, Pee-Laby ^ 239 



Some observations concerning pollination of olives. Bonnet 239 



Preliminary revision of North American and West Indian avocados, Blake_ 239 



The conservation and application of manures, Sliamel 239 



Results with pruned and unpruned lemon (rees, Shamel 239 



Planting, cultivation, and expression of edible oils and seeds, Newland 240 



The American nut industiy as a whole. Reed 240 



Patch-budding large limbs and trunks of pecan trees, Evans 240 



[Plants suitable for Nebraska] 240 



Blending colors in flowers, Phipps 240 



Seedling daffodils selected to grow on at Brodie Castle, Brodie 340 



Germination of gladiolus seed, Gersdorff 240 



Some of the newer peonies, Christman 240 



Oriental poppies at Wisley, 1917 240 



Descriptive list of liardy and semihardy primulas, Moore 240 



About roses, Hottes 240 



FOEESTEY. 



The oak hornbeam woods of Hertfordshire. — I-IV, Salisbury 241 



Caiises of failure of natural regeneration in British oakwoods, Watt 241 



The resin usufruct of tlie pine, Schierlinger 241 



Revision of the true mahoganies (Swietenia), Blake 241 



Studies in the ecology of tropical rain forests of South Brazil, McLean 241 



Report of the division of forestry 241 



Forest administration in Ajmer-Merwara, 1918-19, Shambhoo Datt Joshi_ 241 



The forests of Greece, Massias r 241 



The lumber market in Italy and reconstruction requirements, Brown 242 



DISEASES OF PLANTS. 3 



Plant disease and the " vicious circle," Hurry 242 



Studies on plant cancers. — I, Mechanism of leafy crown gall, Levine 242 



Swedish species of Taphrina, Palm 242 



Head smut of corn and sorghum, Dana and Zundel 242 



Conference on sweet potatoes and diseases of cotton, corn, and tomatoes- 243 



Additions to the list of plant diseases of importance in Indiana, Osner 243 



Report of the division of phytopathologj' [Mauritius], Stockdale 243 



Pathological [repoit, Western Australia], Herbert 243 



Plant pathology [New Zealand, 1918-19], Cockayne 244 



Grass rusts of unusual structure, Arthur and Mains 244 



Seed treatment [against stinking smut], Miiller and Molz 244 



Control of cotton anthracnose and cotton improvement, Jehle and Winters. 244 



Control of cotton wilt, .Jehle 244 



Bacterial wilt of cucurbits. Rand and Enlows 245 



[Potato diseases, British Isles] 245/ 



Wart resistant potatoes at Wisley, 1917 245 



Diseases of flue-cured tobacco, AVolf and Moss 245 : 



Control of late blight of tomatoes in the Blue Ridge, Jehle et al ^6 ' 



Some fungus diseases of fruit trees, AVormald ' 246 



The brown rot diseases of fruit trees, II, Wormald . 246 



The destruction of Ribes by chemical means, Regan 246 



"Die-back" of the fig in California, Condit and Stevens 246 



Bud abortion — its possible relation to June drop, Boncquet 247 ' 



A new disease of coffee, Dowson ! 247 



Root diseases of the tea plant caused by fungi, Bernard and Palm 247 



Experiments on control of eelworm disease of Narcissus, Ramsbottom 247 



Mildew-resistant roses: Increasing their number, Easlea 247 



Specialization of Peronospora on some Scropbulariaceae, Giiumann 247 



The white pine blister mst situation 248 



White pine blister rust control in 1919, Detwiler 248 



Resolutions adopted by Fifth International Blister Rust Conference, 1919- 248 



