-94- 



DEPAfiTI.P^l]']' 'OF AGRic ULTUEE 



BUrjgA.U OF PLA NT I1\T3^TR Y 



rO F'/ICE CIRCULABSl 



OFFICE OF ACrXlCULTLfHAL)rECH!TOLO(>Y ■ • 



■ CIRCUL AR • • >■'■ • ■ - 



N^'omber, . . . , . 



1. Cobb, N.A. Estimating the nema population of the soil ... 1918. 



-,>■'■ . , ■ • • • 



,' . ALKALI .AND D ROU GHT RESIS TAN T PL ^ NT IKVESTIG/.TIOI IS , 



7"t , . • ■ lOIHCULARj ■ .... 



i; Kearney, T-H. Tes^ts of Pima ggyptian. cotton in the Salt River Valley, 



Arizona... 1916. A. -A D.R.P. - 1. 



..." ' ' 



fc^ICE OF_COTTOi-T, TR UCK,' AIID FORAG E CROP D ISEASE IlT7 E3 TIGATl0t:S - - 



CJP.CUIAR " ■ .•.••■•■ 



C.T. ftF.Cp. 1-17. ' '" " 1918-1919. 



1. Orton, V.'.A. Sc Powdery dry-rot of potato. 1918. 



Link, G.K.K. ,. ■ • 



2. Potatfi Black -Heart. ' 1918. 



3. Orton, V,'.a» Selection and treatment .of seed pOtatc^to avoid dis-" 



eases, ^9.18. 



4. Pritchard.F.J. The control of tomato leaf-spot. Prevent the dis- • 



& Clark;W.B: ■ eases' by spraying. 1918, 



5. Ei3on,H,A, & Grooving high-grade poijato seed stock. • 1918. - • 



Stuart, W. ' 



6. Kunkel, L.O. Wart of potatoes: a. disease ne*» to the United ^States; 



' ■ 1919. 



. i^rton, J.B. Washington asparagus: information and -suggest ronS' ' ■■ 



for growers of new pedigreed rust-resistant 

 strains. ' 1919. 



CROP PHY 5jOU)GY_AND_JFgEpjQTGjmj gSTIGATIO!T^ 



ICIRCULAR] 

 C.P. & B.I. 1-Ov ~ 1916-1918. 



1. Swingle, W.T. The pistathe nut. 1916, 



2. Hastings, S.H. A lister actachr.ent for a cotton planter, 1^17. 

 o. Mason, S.C. Growing IJei^/o.da on.ioi seed in the southr/estem 



. „ ■. Uni';ed States. .1917. 



4. b^ingle,W.T.& Tangeio..- what they are. The value in Florida of the 

 Hobinson.T.R. Sampron and Thornton tangelos. 1918. 



. ianaka. T. Varieties of the Satsuna orange group in Japan. 1918* 



