-121' 



ppvpvnTT^rTT OV AGRICULTURE 

 jnnjm yr. OV AGRICULTUR AT. RESEARCl^(cont. } 

 ■ . nnTJ TT^TfflTTIOIB FROM BUREAU OF PLAITT INDUSTRY 



IT-umber., 

 K-70. Stahl ,Q.F, & . 

 Carsner, E. '. 



Ala, -5.' Pelt.ier^G.L. .& 

 Neal, D.C. 



Voiimie 14 (cont. ) 



Obtaining beet leafhoppers nonvirulent as to 

 ■ cnrly-top. [Preliminary paj^er] p. 353-39*. 



• 1918.,- (In cooperation with Bur. entomology. ) 

 Overwintering of the citruB-caniier organism in 



the bark tissue of hardy citrus hybrids. 



• p. ^23-524, 1919. (In coopera,tion with 

 Ala. agr. expt. sta. ) ■ ' • . .. 



G-158. Harvey, R.B, ' 



.G-159. Crocker, W. 8t 



'Harrington, G.T!. 



G-160. Carsner, E. 



G-X61. 



■-0.162. 



G-163. 

 G-172. 



Harter, L.L. 



et al . 

 Tx-u6, H.H. 



et al 



'- ' VolTjine 15. 



Hardening process .in plants and dajvelopments 

 from frost injury, p. 83-104. 1918. 



Catalase and oxidase content of seeds in rela- 

 tion to their dormancy, age, vitality, and 

 respiration. pv 137-174. 1918. 



Angular-leaf spot of cucvimbar: dissemination, 

 overwintering, and control. p. 201-220. 1918. 

 (In nooperation with Wise. agr. expt. sta. ) 



Sweet-potato stox'age-roto. p. 337-368. 12x8. 



:•- G-164. 

 G-165. 



..G-166. 

 "G-167. 



G-168. 



" G-169. 



G-170. 



Minn-33. 



Physiolpgipal studies of nora-al and blighted 



spinach. p, 369-408. . 1918. 

 See volune 16. following G-171. 

 True, B.H. & Experiments ori -the value of greensand as a 



source of potassiir.-. for plant culture. 

 : p.483r492. 1918. 

 Effect of farm manure in stimulating the yields 



of irrigated field crops, p. 493-503. 1918. 

 Relation of inorganic soil colloids to plowsole 

 ■ in citrus' groves in southern California. 



p. 505-519.' - 1918. ■ ' • 

 Seedling diseases. of conifers. p, 621-558. 



■1918. • ■ ■ ' ■ ■■■" 



Artschwager.E.F. Histological studies on potato leafroll. p.559- 



570, 1918. . (In cooperation vi th the Cor- 

 nell agr. expt. sta.) 

 Brown canker of roses, caused by Diaporthe 



•umbrina. p, 593-599. 1918. 

 Parasitism, morphology, and cytology of Cron- 



artivm ribicola. p.. 519-660. 1918. 

 Further data on the su^soeptibility of rutaceous 



plants to citrus-canicer. p. 661-665. 1918. 

 Plasticity' of biologicj forms of Puccinia gram- 



inis. p. 221-249. 19i8. (In cooperation 



with Minn.- agr. .exp., sta. ) 



•Geise, F.W.- 

 Soofield, C.&. 

 Jensen, C.A.' 



Hartley, C. 

 ■ et ai 



Jenkins., A.E. 

 Golley, R.H. 

 Lee, H.A. 



Stakman, E.G. 



.et al 



