CONTENTS. V 



Paige. 



The structure and development of crown gall : A plant cancer, Smith et al 649 



Crown [^all on mangolds in England], Bitfen 649 



On two injurious fungi of garden plants, Kock.. 649 



Treatment of seed wheat for smut 649 



Tria,l8 of alleged preventives for emut in wheat 649 



The diseases of ginseng and their control, Wlietzel and Rosenbaum 649 



An external dry rot of potato tubers, Janiieson and Wollenweber 650 



The relationship of Oospora scabies to the higher bacteria, Cunningham 650 



Biochemical research on leaf-roll of potato. — III, Chemical characters, Doby. . 650 



Treatment of seed potatoes with formalin 650 



Gummosis, De Bussy 650 



The Deli form of Bacillus solanacearum, Honing 650 



A serious root disease of radish, Barrett 651 



Tomato leaf rust 651 



Treatment of chlorosis in fruit trees and vines, Hiltner 651 



Oily or glassy fruits, Gross 651 



Experiments with fungi associated with leaf spot and canker, Jjewis 651 



Some notes on Sphseropsis malorum, Brooks and DeMeritt 651 



Apple fruit spot and quince blotch. Brooks and Black 652 



Three destructive diseases of the peach, Essig 652 



Method of spreading of the olive knot disease. Home, Parker, and Daines 652 



Experiments with sprays for controlling Peronospora viticola, Bretschneider . . . 652 



The downy mildew fungi and their control, Bretschneider 652 



A knot of citrus trees caused by Sphgeropsis tumefadens, Hedges and Tenny. . . 652 



Citrus scab, Fawcett 653 



Notea on some diseases of trees in our national forests, II, Hedgcock 653 



The chestnut bark fungus, Diaporthe parasitica, Shear 653 



Some observations on experiments with the chestnut bark disease, Collins 653 



The chestnut bark disease in Massachusetts, Graves 654 



Observations on the chestnut bark disease in Pennsylvania, Rumbold 654 



Preliminary notes on a twig blight of Quercus prinus, Ingram 654 



Tannic acid as protection for oak wood against dry rot, Wehmer 654 



Bacterial black spot of walnut, Rodway 654 



Peridermium cedn as a destructive fungus, Troup 654 



Parasitism of Phoradendron juniperinum libocedri, Meinecke 655 



The use of fungicides to prevent damping off, Hartley 655 



The detection of inert ingredients of fungicides, Wallace and Evans 655 



ECONOMIC ZOOLOGY — ENTOMOLOGY. 



Proceedings of the Seventh International Zoological Congress 655 



Proceedings of the First International Entomological Congress 656 



Insects injurious to com, Fullaway 656 



Insect notes, Ballou 657 



Insects injurious to mushrooms, Popenoe 657 



The leopard moth and other insects injurious to shade trees. Chapman 658 



A manual of Philippine silk culture. Banks 659 



Cutworms and army worms, Gibson 659 



The outbreak of the fall army worm and its control, Wilson 659 



The present outbreak of the grass worm or fall army worm, Wilson 659 



Damage to sugar-cane juice by the moth stalk-borer, Van Dine 659 



The "wilt disease," or "flacherie," of the gipsy moth, Reiff 659 



Studies on the wilt disease of the gipsy moth, Glaser and Chapman 660 



Studies of the wipfelkrankheit of the nonne moth, Escherich and Miyajima. . . 661 



The Mycetophilidae of North America, Part IV, Johannsen 661 



The biology of the cockchafer 661 



The action of carbon disulphid on cockchafer larvae, Decoppet 661 



The destruction of the cockchafer in the forest nursery, Decoppet 662 



The white grub of sugar cane in the island of Mauritius, Vuillet 662 



The control of the boll weevil, Hunter 662 



The honeybee, a guide to apiculture in Canada, Hewitt 662 



A revision of the Ichneumonidse with new genera and species, Morley 662 



The ichneumon flies of America belonging to the tribe Ophionini, Hooker 662 



The clover mite (Bryobia pratensis), Webster 662 



List of insecticide dealers, Woodworth 663 



