^2 CONTROL SERIES NO. 170 



C. L. Halvorson Tree Service, 150 North St., Pittsfield, Mass. 



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

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

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

 Hydroponic Chemical Co., Inc., Copley, Ohio 

 Hy-Trous Corp., 50 Cross St., Winchester, Mass. 



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



International Minerals & Chemical Corp., Woburn, Mass. 



International Minerals & Chemical Corp., 20 North Wacker Drive, Chicago 6, 111. 



Kapco Div., Summers Fertilizer Co., Inc.. 603 Walnut St.. 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. 



Lexington Gardens, Inc., 93 Hancock St., Lexington, Mass. 



Loamiurn Company of America, 2 Kingsland Ave., Harrison, N. J. 



Loncala Phosphate Co., High Springs, Florida 



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



John D. Lyon, Inc., 143 ,\lewife Brook Pkwy., Cambridge 40, Mass. 



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

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

 Olin Mathieson Chemical Corp., 10 Light St., Baltimore, Md. 

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



'Na-Churs" Plant Food Co., 421 Munroe St., Marion, Ohio 



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



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



175 & 92 Sunnyside Ave.. Woonsocket, R. I. 

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



Old Deerfield Fertilizer Co., Inc., South Deerfield, Mass. 



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



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



Parks-Barnes, Inc.. 530-6th St., Hermosa Beach. Cal. 

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

 Penn Co., 39 Deering Road, Dorchester, Mass. 

 Plant Magic Products, Inc., 40 Highland .'Vve., Seekonk, Mass. 

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

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

 Premier Peat Moss Corp., 535 Fifth Ave.. New York 17, N. Y. 

 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. 



Rogers & Hubbard Co., Portland, Conn. 



Rose Manufacturing Co., 445 Main St., Beacon, N. Y. 



Ruhm Phosphate & Chemical Co., Columbia, Tenn. 



St. Louis National Stockyards Co., E.Kchange Bldg., National Stock Yards, 111. 



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



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



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



Smith Agricultural Chemical Co., 618 North Champion Ave., Columbus 16, Ohio 



Sohio Chemical Co., Ft. Amanda Rd., Lima, Ohio 



Soil Builders International Corp., 33 West 42nd St., New York 36, N. Y. 



Soil Saver Service, Pawlet, Vt. 



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



Stimuplant Laboratories Co., 2077 Parkwood Ave., Columbus 19, Ohio 



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



