} 



DBPAim.j:i]T OF AGRICULTUHE ". 



pTQUyaTAL 0? A^/RICUL?UH:'.L R-SEARC!: (-:ont;;.)- 



CONTRI."RUTIOiIS FRgI BJPEAU OF PIJUIT IITEUSTRY 



Vollane 16. 

 Nuinbap. 

 0-171. Tm^ R.H; Ash absorption by sjiinach from concentrate, sbil- 



Bt al - solutions.-; p.l6-!fc. 1519. ■ • 



G-172. Se^ volume 15 fcllOv/inr O-I6I2!. • 



G-153. tisdalQ, W.H. Physo^ema diseasG of corn. p. 137-154. 1919. 

 G-17-3. Brooks, C. Apple-scald, p. 195-217. igiS.-' • 



et al .... 



G-174:. ?vlac;.liilan, K.G. FTasarinjiLi-blight of potatoes under irrigation. 



p. 279-303. 1919. 

 Minn-35. Staicrian,E,C.& Effect of certain ecological factors on the mor- 

 Lavine.M.N. phology of the uredinio spores of Puccinia gram- 



inis. p. 43-77. 1919. (In coopei-ation with 

 Minn. agr. eXp.- sta. ) . • : • - 



Minn-35. Stdkmaii.E.C. New biologic fonns of Puccmla graminis. {Pre- 

 ac al iirain;u'y paper] ■p.l03-i05. 1919. (In co- 



■ operation with r.iinh. agr. exp, sta.) 

 . ' - " •,■'••• 



. ■ Volume l"*. 



. . " • • • > 



G-175. Collins, G.IT. Structure of the maize ear as indicated in Zear 



Euchlaena Hjrbrids.' p. 127-139; •■' .19i9. 

 0-175 . Russell, G.A. Effect of removing the pulp from caiiiphor seed on 



germination and the subsequent growth of the 

 seedlings. p. 223-237, 191?.' ■ • '■ 



G-177. Schultz, E.S. -Investigations on the mosaic -irsease 'of the Irish 

 et al potato. [-Proliminary paper] p. 247-273, 1919. 



(In cooperation vvith Maine -agr. exp. 'sta. ) • 

 .G-178. Stevens,. N.E. Temperature in relation to qiaality of svyeet-corn. 



<i Higgins.G H, p. 275-284. 1319. '-■• ■'■'■ " 



Wis-15. Johnson, J.S: Influen;:e of soil environLient on the rootrot of 



Hartman.R.E. tobacco, -p-ii-ao. 1919. (In cooperation . 



vvith V/is. agr. exp. sta.) . • ■ ■ " 



K-76. ivicInioo,N.E. Derris as an insecticile. p. 177-200. ' 1919. (In 



. ^'^ ^1 . cooperation with Bur. • of entomology) '" " 



Volume IB,'" '■ ' " • • 



G-1.7.9. Brooks, C. Na.ture an.1 control of apple-scalo..- "p. 211-240. 



,^:t al ;L9i9, ■ : . 



G-180. Brea2eale,J.F. Response .of citrus seellings in water cultures to 



. . . ^. salts ani organic fc;ctra.-^ts. p. 267-274. 1919. 



G7I8I. Hawkins, L. A, a: Fnys:.olcgicai stuay of the parasitism of Pythixm 

 Harvey, R.3. debai-j^an-jn. Hesse on the potato tuber, p.275- 



^g-'. .■ 1919. 



G-182. Scofiel.ijC.S. Cotton ccozroz spots. p.30o-3j.0. 1919. 



