-120- 



DEPARTMENT OF AOHICULTURE 



JOUHITAL OF AGRICULTUIl^L PESEAPCH (cont.) 



C ONTRIBUTIONS FROM ?UPE;\U OF PL/NT INDUSTRY 



Volime 13 (coat. ) ' 

 Kymber. .. . ■.■.'-•■\' 



0-144. Brown, N.A. Some bacterial diseases of lettuce. p. 36,7-388, 



• ■ ^ 1918. ■ 



G-145. 'Rosenbavim.J. & Influence of te mperatun and precipitation on 



Ramsey, G..B, the blackleg of potato. p. 507-513. 1918, 

 G-l-fe. Allard, H.A. ' Effects of various salts, acida, geiiiiicides, .. 



• • - etc., upon the infectivity of the virus causing 

 the mosaic disease of tdbaoco. p. 619-537. .1918. 

 G-147. MaciViillan.H.G, Sunscald of -beans. ■ p, 647-650.^ 1918. 

 Inl-3. Osner, G.A, Ster.ir.hyli^JBi leafspot of cucuiiibers. • p. 295-306, 

 ■ ' - • 1918'. 



Minn-30. Levine.M.N. d A third biologic form ofPuccinia graminis on 

 Stalaiian, E.G. wheat. p. 651-654. 19i8. (In cooperation 

 with Minn, a^r, eAp,..3ta. ) 



" ' Voluiue 11. . , 



G-148. Harter, L.L. A hithorto-unreported disease of okra. p.2D7- 



■ 212. 1918. 

 G-149. Edson,H.A. & Potato-stem lesions. p. 213-220.. 1918. 



Shapovalov.M. 

 G-150. Artschwager.E.F. Anatomy of the potato plj.nt, with special ref- 

 » erence to the ontogeny cf the vascular system. 



p. 221-252. 1918. 

 G-151. Hasselbring.H. Effect of different o.-cygen pressures on the car- 



bohy^lrate metabolism of the sweet potato, 

 p. 273-23 1. - 1918.^ 

 G-i52. Hedgcock,G.Q.' Pinon blister-rust. ... p.41.1-.424. 1918. • 



"et al - ... 



G-153. Chilcott,E.C.& Subsoiling, deep tilling, and soil ^dynami'ting in • 



' Cole, J.S. the Great Plains. p. 481-521. 1918, 



G-154. Harrington, G.T, Resistance of seeds to d<3siccation. p. 525-532. 



2c Crocker.W. 1918. 



G-155. Kunkel, L.O. Tissue invasion by Plasmodiophora brassicae. 



p. 543-572. 1918. 

 G-156. Hartley, C. Stem lesions caused by excessivb heat, p.595- 



604. 1918. 

 0-157. Hoffer, G.ll. Corn-rootrot and v^heatscab. ' [Preliminary paper] 



et.al P.-611-612. 1913. 



Minn.-31.Stakman, E.G. Can biologic forms of stenirust on wheat change. 

 et al. rapidly enough to interfere' with breeding for 



rust reaistoOice? p. 111-123. 1918, (In co- 

 operation with Mirm. agr. exp! sta. ) 

 Ala. -4. Peltier, Cf.L, Susceptibility ind resistance to citrus-canlier 



cf the wild relatives, citrus fniits, and hy- 

 brids of the genus cit^-us. 'p.' 337-358. 1918. 

 (In cooperation with Aia, agr. exp. sta, ) 



