26 CONTROL SERIES NO. 174 



Heller Greenhouse Laboratories, 218 East Pikes Peak Ave., Colorado Springs, Col. 



A. H. Hoffman, Inc., Landisville, Penn. 



Hubbard-Hall Chemical Co., 28 Benedict St., Waterbury, Conn. 



Humphreys-Godwin Co., 2246 Park Ave., Memphis, Tenn. 



Hydroponic Chemical Co., Inc., Copley, Ohio 



Hy-Trous Corp., 16 Fowle St., Woburn, Mass. 



Independence Hall Seed Co., 2700 Wilmarco Ave., Baltimore 23, Md. 

 International Minerals & Chemical Corp., Woburn, Mass. 



International Minerals & Chemical Corp., Phosphate Chemicals Div., 20 North Wacker Drive, 

 Chicago 6, 111. 



Kapco Div., Summers Fertilizer Co., Inc., McKeesport, Penn. 

 Spencer Kellogg & Sons, Inc., 98 Delaware Ave., Buffalo 2, N. Y. 



Lawn-Tex, Inc., 1640 West Fulton St., Chicago, 111. 



Lebanon Chemical Corp., Lebanon, Penn. 



Lee Patten Seed Co., 360 Ninth St., Jersey City 2, N. J. 



Leeds Chemical Products, Inc., 112 East Walton St., Chicago, III. 



Le.xington Garden , Inc., 92 Hancock St., Lexington, Mass. 



O. E. Linck Co., Inc., Clifton, N. J. 



Loamium Company of America, 8 Kingsland Ave., Harrison, N. J. 



Lockwood Nutrition Sei-vice, Inc., 177 Milk St., Boston, Mass. 



Loncala Phosphate Co., High Springs, Florida 



L. B. Lovitt & Co., 314 Cotton Exchange Bldg., Memphis, Tenn. 



John D. Lyon, Inc., 143 Alewife Brook Pkway., Cambridge 40, Mass. 



McKesson & Robbins, Inc., 79 Milk St., Boston 9, Mass. 

 Mamlon Co., 1089 Whalley Ave., New Haven 15, Conn. 

 Monsanto Chemical Co.. 1700 South Second St., St. Louis 4, Mo. 



Natural Plant Food Co., 210 West California St., Oklahoma City 2, Okla. 

 Nitro-Form Agricultural Chemicals Div., Woonsocket Color & Chemical Co., Inc., 



92 Sunnyside Ave., Woonsocket, R. I. 

 Nitrogen Dov., Allied Chemical & Dye Corp,, Hopewell, Va. 



Old Fox Agricultural Sales, Inc., 49 Valley St., East Providence, .R I. 

 Olds & Whipple, Inc., 168 State St., Hartford, Conn. 



Parks-Barnes, Inc., 530 Si.xth St., Hermosa Beach, Cal. 

 Pedigreed Seed Co., 96 Forrest St., Jersey City 5, N. J. 

 Penn Co., 46 Blue Hill .■\ve., Milton, Mass. 

 Plant Magic Products, Inc., 40 Highland Ave., Seekonk, Mass 

 Plant Products Corp., Kennedy Ave., Blue Points, L. I., N. Y. 

 Plantabbs Corp., 1105 Maryland Ave., Baltimore 1, Md. 

 Proen Products Co., 9th & Grayson Sts., Berkeley 10, Cal. 



Ra-Pid-Gro Corp., 88 Ossian St., Dansville, N. Y. 



John Reardon & Sons, Div. of Wilson & Co., Inc., 51 Waverly St., Cambridge 39, Mass. 



Ree-Lee Good Products Div., C & C Super Corp.. Route 4 & Nordhoflf Place, Englewood, N. J. 



Rose Manufacturing Co., 160 Main St., Beacon, N. Y. 



Ruhm Phosphate & Chemical Co., Columbia, Tenn. 



O. M. Scott & Sons Co., Maryville, Ohio 



Sears, Roebuck & Co., 925 South Homan Ave., Chicago 7, 111. 



Sewerage Commission of the City of Milwaukee, Milwaukee 1, Wis. 



Soil Saver Service, Pawlet, Vt. 



Stanton Co. Holland, Mich. 



Stern's Garden Products, Inc., 404 William St., Geneva, N. Y. 



Stim-U-Plant Laboratories, Inc., 2077 Parkwood Ave., Columbus 19, Ohio 



Sudbury Laboratory, Dutton Road, South Sudbury, Mass. 



Swift & Co., Plant Food Div., Hartford 1, Conn. 



Swiss Farms, Inc., Philniont, N. Y. 



