490 Bibliography 



Fisher, D. F., and Newcoml:), E. J., Controlling important fungous 

 and insect enemies of the pear in the humid sections of the Pacific 

 northwest. Farms'. Bui. 1056. 1919. 537. Fromme, F. D., The 

 Nematode disease of wheat in Virginia. Va. Agr. Exp. Sta. Bui. 

 222. 1919. 538. Stakman, E. C, and Levine, M. N., Rye smut. 

 Minn. Agr. E.xp. Sta. Bui. 160. 1916. 539. Byars, L. P., and Gil- 

 bert, W. W., Soil disinfection with hot water to control the root- 

 knot nematode and parasitic soil fungi. U. S. Dept. Agr. Bui. 818. 

 1920. 540. Rand, Frederick B., and Ella M. A. Enlows, Bacterial 

 wilt of cucurbits. U. S. Dept. Agr. Bui. 8'£8. 1920. 541. Schultz, 

 E. S., Folsom, D., Hildebrandt, F.M., and Hawkins, L. A., Investi- 

 gations of the mosaic disease of the Irish potato. Jour. Agr. Res. 

 17: 247. 1919. 542. Meier, F. C, Control of watermelon anthrac- 

 nose by spraying. U. S. Dept. Agr. Circ. 90. 1920. 543. McMur- 

 ran, S. M., The anthracnose of the mango in Florida. U. S. Dept. 

 Agr. Bui. 52. 1914. 544. Stevens, N. E., and Morse, F. W., The 

 effect of the endrot fungus on cranberries. Amer. Jour. Bot. 6: 235. 

 1919. 545. Higgins, B. B., A Collectotrichum leafspot of turnips. 

 Jour. Agr. Res. 10: 157. 1917. 546. Brandes, E. W., Banana wilt. 

 Phytop. 9: 339. 1919. 547. Quanjer, H. M., The mosaic disease 

 of the solanacese, its relation to the phloem-necrosis, and its effect 

 upon potato culture. Phytop. 10: 35. 1920. 548. Botjes, J. 0., 

 Raising phloem-necrosis and mosaic free potatoes, and a source of 

 infection whose nature has not yet been elucidated. Phytop. 10: 

 48. 1920. 549. Orton, C. R., and Kern, F. D., The potato wart 

 disease. Penn. Agr. Exp. Sta. Bui. 156. 1919. 550. Walker, J. C, 

 Onion diseases and their control, U. S. Dept. Agr. Farms'. Bui. 

 1060. 1919. 551. Stakman, E. C, The black stem rust and the 

 barberry. U. S. Dept. Agr. Yearbook, 1918: 75. 1919. 552. 

 Rosen, H. R., A Bacterial root-rot of field corn. Ark. Agr. Exp. 

 Sta. Bui. 162. 1919. 553. Taubenhaus, J. J., Field diseases of the 

 sweet potato in Texas. Texas Agr. Exp. Sta. Bui. 249. 1919. 554. 

 Stevens, F. L., Foot-rot of wheat. Sc. N. S. 5^- 517. 1920. 555. 

 Greene, Laurenz and Melhus, I. E., The effect of crown gall upon 

 a young apple orchard. Iowa Agr. Exp. Sta. Res. Bui. 50. 1919. 

 556. Miles, L. E., Elm leaf diseases. To be published in the 

 Botanical Gazette. 



