rV CONTENTS. 



Page. 



Unusual methods of propagating nut trees, Morris 443 



Multiplication of floral parts in the carnation, Connors 443 



Individuality in rose plants, Blake 443 



Sweet pea studies. — IV. Classification of garden varieties, Beal 443 



FORESTRY. 



Tree guide, Rogers 444 



Yellow pine, North 444 



On the conditions for the natural occurrence of sprvice, Miiller 444 



Influence of precocity of thinning on the yield of spruce, Mer 444 



Can yield of nibber from Hevea trees be increased by fertilizers? De Jong 444 



[The rubber industry in Brazil] 444 



Note on a latex hydrometer, Eaton 444 



[The lumber industry in Wisconsin,] Dopp 444 



Manitoba, a forest Province, Campbell 445 



Trent watershed survey, Fernow, Howe, and \\Tiite 445 



Forest protection in Canada, 1912, Lea\itt 445 



Cooperative forest fire protection, Bothwell 445 



The care of the woodlot, Morton 445 



DISEASES OF PLANTS. 



The nonvalidity of the genus Lasiodiplodia, Taubenliaus 445 



Identity of Pcridermiumfusiforme with P. cerebrum, Hedgcock and Long 445 



Biological strains of Sphxropsis malorum. Hesler 445 



Life history of Sphxropsis malorum, Shear 446 



Grain smuts: Their causes and treatments. Cook 446 



Experiments on the control of certain barley diseases, Johnson 446 



Observations and experiments on the blackleg disease of cabbage, Henderson. . 446 



Progress in developing disease-resistant cabbage, Jones 446 



Decay of celery in storage, Pieddick 447 



Some points in the life history of Phytopthora on ginseng, Rosenbaum 447 



Fusaria of potatoes, Sherbakoff 447 



A study of the annual recurrence of Phytophthora infestans, Melhus 447 



Some new or little-known diseases of the sweet potato, Taubenhaus 447 



Blossom-end rot of tomato, Brooks " 447 



Diseases of tobacco, Johnson 448 



Disease resistance in tobacco to root rot, Johnson 448 



Some diseases of nursery stock, Cook 448 



Crown gall and hairy root. Cook 449 



Perithecia in cultures of Venturia incqualis, Jones 449 



Comparative dusting and spraying experiments, Blodgett 449 



Fruit infection of peaches — inoculations with Cladosporiun carpophilum, Keitt. 449 



Gum formation in citrus as induced by chemicals, Floyd 449 



Fungus gummosis of citrus in California, Fawcett — 449 



Citrus root nematode, Cobb - ; 449 



Poor nitrifying power of soils a possible cause of die-back in lemons, Lipman. . . 450 



Pellicularia Jcoleroga on coffee in Porto Rico, Fawcett 450 



A destructive nematode introduced into the United States, Byars 450 



Sphseropsis canker of Quercus prinus, Rankin 450 



A little-known disease of chestnut and oak trees, Heald . . ._ - 451 



Temperature and expulsion of ascospores of Endothia parasitica, Walton 451 



Wind dissemination of ascospores of the chestnut blight fungus, Heald et al — 451 



Insects as carriers of the chestnut blight fungus, Studhalter 451 



Control of the Ribes generation of the white pine blister rust, von Tubeuf 451 



ECONOMIC ZOOLOGY — ENTOMOLOGY. 



The common mole. — Runway studies; hours of activity, Scheffer . . 451 



Infection of rats vnih Bacterium pseudopestis murium and goiter, Galli- Valeric. . 451 



A system of notation applied to entomological accessions, Tucker 452 



[Report of the] Second International Congress of Entomology, 1912 452 



Sixth amiual report of the state entomologist of Indiana, Baldwin 452 



Report of the entomologist's inspection trip to Santo Domingo 452 



' ' La Changa, ' ' Scapteriscus didactylus, Crossman 452 



Insects of tobacco, Johnson 453 



