D"irPj\a':^.S!^ OF /,gr:"C'J7.ttp -E 



DET'ARIIg::? CIRCULi'R 



CQTTTHI BUTIOTIS FROii PUPZ/.U OF PLM'T I'TiUSTRY 

 N-ur^oers i-;.51, 191a-192C, In progress. 



In 191S a ner/ series of publications was inaugiorated, loiown as De- 

 partLient Circulurs. Theoe tal:o the place of n-cL-ercas circulars ani ' 

 leaflets heretofore issued hy the various bureaus, and being numbered 

 in a single series avoid the cocplexitv of nu':bering which formerly er:- 

 isted. ■ (From Kept. Chief Div. Pub., 1918/19.) 



Uuciber. 



9. Vinall, E.N. ileadow fescue. 1919. 

 33, Potato wart - a dangerous new' disease. 1919. ■ • • 



i2. Carrier, L. Perennial rye-grass (LoII-ul; pereraie). 1919. 



43. Redtop (Agrostis alba). 1919. 



44. Italian rye-grass (Loliixi nultiflonm). 1919. 



45. Tracy, 3.L«I. Para grass (Panicum barbinode). 1919, 



49. Ma3cing and naintaining n, lawn. 1919. 



50. Sudan grass. 1919. 



58. Pfaender, i.i. Fruit grov/ing on the "orthern Great Plains, 1919. 

 0. Aune, B. The woi'k of the Belle Fourche Reclanation Project 



Experinent Fann in i91fa. 1919. 

 62. M-uLford, F.L. Hortic-oltiiral 3::hibitions and garden competitions. 



1919. 

 65. Oakley , R.A. Distribution oi" tulip and narcissus biiHis in 1919. 



1919. 

 73. Letteer, C.R. The vvorl; ci the San Atonio Experiiaent Fare, in 1918. 



19 2G. 



75. Blair, R,E. The worl: of the Yijua Reclaruation Project Experiment 



Fara in 1918. 1920. 



76. Blake, S.F. Directions for collecting flowering plants and 



ferns. 1920. 



78. Russell, G.A. A machine for tricnins Ccunphor trees. 1920. 



80. Headley, F.E. The woi-k in 191Q of the ITewlanis (fomerly the 



Ti-uckee-Carson) Reclamation Project Experiment 

 Farm. 1920, 



84. Schreiner, 0. Crop inj-ory by borax in fertilizers. 1920. 

 3t al 



86. Hansen, D. The work of the Huntley Reclamation Project Experi- 

 ment Farn in 1918. 1920. 



89. Piper, C.V. Kud-ji. 1220. 



90. Meier, F.C. Conti-ol of watermelon anthracnose by spraying. 1920. 



92. Piper, C.7. The jack bean. 1920, 



93. Festover,H.L. The de^eiopnent of the Peruvian alfalfa industry 



in the United States. 1920. 

 108. Hansen, A. A. Chicory: control and eraaication. 1920. 

 10^- Cockleb^. 1920. 



110. Dean, H.K. The .v-^rk of the Umatilla Reclaioation Project E:<peri- 



nenb F?ra in 1918 and 1919, 1920. 



111. Lyman, G.R. Potato wart. 1930. 



et al 



