VI CONTENTS 



III. — Diseases due to Bacteria, Fungi and other Lower Pi,ants. 



929. Contribution to the Study of the Mycology of I<iguria, Italy. — 930. Phomopsis diploglot- 

 tidis, P. bi'iosii, Coniothyi iuin hypoglossi and Centhospora pollaccii, new Microniycetes dis- 

 covered in Italy. — 931 . Diseases and Enemies of IHospyros virginiana in the United States. 

 — 932. The Part played b}' Insects in the Spread of Bacillus amylovorus. 



RESIST.4NT Pl.\nt.s. — 933. On the Susceptibility of Phascolus vulgaris and P. muliiflorus to 

 Bean Rust {Vromyces appendiculatus) and other Fimgoid Diseases. — 934. The Selection 

 of Ty|ies of Tobacco Resistant to Thielavia basicola, in America. — 935. Resistance of 

 Pynis calleryana to Necrosis of the Bark and Branches (Bacillus amylovorus) . — 936. Stu- 

 dies on the Resistance of Primus spp. to Bacterium himejaciens. 



Me.'Vns of Prevention .a.nd Control. — 937. Prophylaxis in Vegetable Pathology-. — 938. 

 Means of Control of Chrysophlyctis endobiotica, a Potato Pest in Germany. 



D1SEA.SES OF Various Crops. — 939. PM'/o/?/i</^ora sp. Injurious to Oats in America. — 940. 

 Potato Diseases in the Dutch East Indies.- — 941 . Cronartium ribi cola attacking i?j6fs 

 in Ontario. — 942. Sclerotinia libertiana, Injurious to Forsythia viridissima. — 943. Tri- 

 choderma Roeningi causing Root Rot of the Apple Tree, in Virginia. 



IV. — Weeds and Parasitic FIvOWEring Pi^ants. 



944. CryptostemiTM calendulaceutn, Crepis capiUaris, Leontodon hirtiis and Carduus spp.. Weeds 

 in New Zealand. 



V. — Injurious Insects and other Lower Animate. 



General. — 945. Contribution to the lyife Histoiy and Anatomy of Lyda hypotrophica (= Ce- 

 phalcia abietis). — 946. White Grubs (Lachnosterna spp.) in Wisconsin, United States. 



Resi.ST.\nt Plant.s. — 947. Resistance of Different Varieties of Wheat to Mayctiola deshtictor 

 in America. 



Means of Prevention and Control. — 948. Aspidiotiphagus citrinus, Endoparasite on Chry- 

 somphalus dictyospermi in Italy. — 949. An undetermined Nematode Worm, parasitic 

 on Aphids. — ■ 950. Nicotine products tried in Germany against " Cochylis " and " F,u- 

 demis. " 



Insects ETC., Injurious TO Various Crops. — -951. Gryllus servillei, an Injurious Orthopterou 

 in New Zealand. — 952. Batmchedra rileyi, a Microlepidopterous Pest of Maize in America. 



— 953- Variegated Cutworm [Peridroma margaritosa), a Macrolepidopterous Pest of the 

 Sugar-Beet in California. — 954. Epochra canadensis, a Dipteious Pest of Ribes in America. 



— 955. Hickor3' Twig Girdler {Oitcideres cingidata), a Coleopterous Pest of I)iospy(os vir- 

 giniana ("persimmon") in the United States. 



The Bureau assumes no responsibility with regard to the opinions and the results of exper- 

 iments outlined in the Bulletin. 



The Editor's notes are marked (£(/.). 



