J O U R N A L
APRIL 1955 Volume 3 , Number 4 C o p y r i g h t 1 9 5 5 b y American Chemical Society
GET A FREE SAMPLE OF THIS
OF
Agricultural a n d Food Chemistry
FEATURE Grasslands Improvement—A Vast Profit Potential. II Intermountain Region—L. A. Stoddart and Arthur D. Smith The Southwest—R. R. Humphrey The Pacific Coast—R. Merton Love
300 303 306
®
Terra-Lite
AG AND FOOD INTERPRETS
BRAND
Ammonium sulfate producers watch future sharply Fall fertilizer marketing results disappointing Potash expansion—3 million tons by 1 960? Agricultural chemicals industry takes self-critical look British agricultural chemicals exports up 2 5 % Food additives bills give FDA strong position
VERMICULITE
283 284 288 289 289 292
Amazingly Absorbent That's why Terra-Lite® prevents chemical caking — remains free flowing even when mixed with high percentage of chemicals.
DEPARTMENTS Business Newsletter Research Newsletter Letters to the Editor Editorial News of the Month
275 277 278 281 294
New Books New Products and Equipment. . Literature Available Profiles Perspective
TECHNICAL SECTION
354 356 358 360 364
Over 27,500,000 particles per lb. (28/65 mesh). The p h y s i c a l structure o f this lightweight mineral is such that chemicals are not easily leached a w a y — a r e readily available for longer, more effective use.
311
Next Month
Over 40 plants to serve you
Use of chemicals in foods and feeds will be given feature treatment
Immediate shipment from a plant located nearby. Editor: WALTER J. M U R P H Y Executive Editor: James M. Crowe
Assistant Editors: Katherine Biggs, Margaret C. Summers, Albert S. Hester, Thompson E. Upham, Kenneth M . Reese
Dust free. This New Vehicle Turns Liquid Chemicals into Free Flowing Solids
Managing Editor: Richard L. Kenyon Production Manager:
Joseph H. Kuney
Associate Editors: W A S H I N G T O N , Robert G. Gibbs, Stella Anderson, G. Gladys Gordon, Ruth Cor nette, Edward J. Reardon C H I C A G O , Rodney N. Hader H O U S T O N , Harry W. Haines, Jr. NEW YORK, Harry Stenerson, Gordon C. Inskeep, Howard J Sanders SAN FRANCISCO, Gordon H. Bixler EASTON, Bertha Reynolds, Charlotte C. Savre EUROPE, William Q. Hull
Editorial Assistants: Betty V. Kieffer, Sue R. Peter, Ruth C. Laubach, William L. Ostrow ski, Veronica O'Keefe, Fern S. Jackson, Ruth M. Howorth, Whilden W. Johnson, Lois J. Bennett Advisory Board: C. S. Boruff, LaVerne E. Clif corn, Russell Coleman, Albert L. Elder, Conrad A. Elvehjem, Charles H. Fisher, Walter G. Frankenburg, J. F. Fudge, Francis A. Gunther, H. L. Haller, Lea S. Hitchner, Charles G. King, Walter H. MacIntire, Harvey B. Mann, John H. Nair, Bernard L. Oser, Vincent Sauchelli, J. L. St. John, Betty Sullivan, Paul T. Truitt, Leland A. Underkofler
®
Terra-Lite Div. Zonolite Company 135 S. La Salle St. Chicago 3 , Illinois
The American Chemical Society assumes no responsibility for the statements and opinions advanced by contributors to its publica tions. Views expressed in the editorials are those of the editors and d o n o t necessarily represent the official position of t h e American Chemical Society. Published m o n t h l y b y t h e American Chemical Society, from 20th a n d N o r t h a m p t o n Sts., E a s t o n , Pa. Executive offices, Editorial Headquarters, and Circulation D e p a r t m e n t , 1155 Sixteenth St., N . W . , W a s h i n g t o n 6 , D. C. Advertising Office: 430 Park A v e . , N e w York 22, N . Y. Branch Editorial Offices: 86 East R a n d o l p h St., Chicago 1, Ill.; 623 West Bldg., Houston 2 , T e x . ; 60 East 42nd St., N e w York 17, N . Y . ; 703 Mechanics' Institute Bldg., 57 Post S t . , San Francisco 4 , Calif.; Bush H o u s e , A l d w y c h , L o n d o n . Entered as second-class matter at t h e Post Office at Easton, P a . , U.S.A., under the Act of March 3 , 1879. Annual subscriptions: members $5.00, nonmembers $6.00. Postage t o countries n o t in the Pan-American Union $1.50; Canadian postage $0.50. Single copies: current issues, $1.00. Claims for missing numbers w i l l n o t be allowed if received more t h a n 60 days from date of mailing plus time normally required for postal delivery of journal and claim. N o claims allowed from subscribers in Central E u r o p e , Asia, or t h e Pacific Islands o t h e r t h a a H a w a i i , or because of failure t o notify the Circulation Department of a change of address, or because copy is " m i s s i n g from f i l e s . " C H A N G E O F ADDRESS: Notify Circulation Department, American Chemical Society, 1155 Sixteenth St., N . W . , Washington 6, D. C. Such notification should include b o t h old and new addresses and p o s t a l zone number, if any. The American Chemical Society also publishes: Industrial and Ettginttring Chtmistry, Analytical Chtmistry, Chemical and Enginttrtng Ntws, Cbtmical Abstract!, Journal of tht American Chtmical Socιity, Journal of Phytical Chtmistry, and the Journal of Organic Chemistry. Rates on request.
VOL.
FREE S A M P L E S TERRA-LITE D i v i s i o n Zonolite C o m p a n y , 135 S. La Salle St. Dept. J A 4 S , Chicago 3, Illinois Please rush me f r e e sample a n d literature describing this r e m a r k a b l e new g r a n u l a r carrier. Name Address City
3,
NO.
Z o n e . . . . State
4.
APRIL
1955
273