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614 Glenwood Ave., Raleigh, N. C. 19523 S. Susana Rd., Compton, Calif.

CLIP COUPON TO YOUR LETTERHEAD FOR CURRENT PRODUCT INFORMATION

Great Lakes Chemical Corp. West Lafayette, Ind., 47906 Dept. 105

Please send current information on Methyl Bromide and Ethylene Dibromide for agri­cultural use.

NAME-

TITLE.

COMPANY-

ADDRESS-

CITY .STATE-

ASSOCIATIONS

Midwest Regional Meeting The 1966 Midwest Regional ACS Meeting will be held at the Univer­sity of Kansas, Lawrence, Oct. 27 and 28. The program will consist of in­vited symposiums on newer aspects of natural product chemistry and ap­plications of nuclear magnetic reso­nance to inorganic chemistry, as well as general sessions in the areas of analytical, inorganic, organic, physi­cal, and polymer chemistry.

Exhibits by manufacturers of pre­cision scientific instruments and ap­paratus are being planned, also a special lecture and a mixer.

Papers are solicited. Anyone in­terested should request abstract forms from Dr. Norman Rabjohn, Dept. of Chemistry, University of Missouri, Columbia, Mo., to be returned by July 10.

For further information write R. L. Middaugh, c/o Chemistry Dept., Uni­versity of Kansas, Lawrence, Kan. 66044.

MEETINGS

Institute of Nuclear Materials Man­agement, 7th annual meeting, Shera­ton-Columbus Motor Hotel, Columbus, Ohio, June 13 to 15. Papers on nu­clear materials management and con­trol. Write INMM, 505 King Ave., Columbus, Ohio 43201.

Parenteral Drug Association, meeting in Philadelphia, June 24, Sheraton Hotel. Papers on plastic films for ultraclean wrapping applications, technical problems in assaying for

ACS SHORT COURSES

Men and Molecules . . .

. . . released for broadcast after June 10 is titled "The Imprint of Malnutrit ion" and features Dr. Richard Barnes of Cornell.

See "ACS on the Air" listings beginning on page 74 for sta­tions broadcasting in your area. Each week C&EN announces here the "Men and Molecules" pro­gram to be released the following Friday. Call your local station to find out when specific programs you are interested in will be broadcast.

trace contaminants in drugs, and zero defects. Write PDA, Western Saving Fund Bldg., Broad & Chestnut Sts., Philadelphia, Pa. 19107.

21st Calorimetry Conference, Uni­versity of Colorado, Boulder, June 22 to 24. Includes Hugh Huffman Me­morial Lecture by Leo Brewer on New Relations Between Spectroscopy and Thermodynamics and a program of 57 other technical papers, also banquet and scientific exhibits. Pro­gram chairman is O. J. Kleppa, Uni­versity of Chicago, Chicago, 111.

6th Informal Conference on Vacuum Microbalance Techniques, Oct. 23 to 25, Newporter Inn, Newport Beach, Calif. Papers on chemical and physi­cal topics based on vacuum micro-balance data invited. Send 150-word abstract by Aug. 1 to the conference secretary, 7500 Jefferson St., Para­mount, Calif.

Place Beacon, N.Y.

Date June 29-July 1

Binghamton, N.Y. June 26-28

College Park, Md. Aug. 27-28

Chicago, III. June 18-20

Fullerton, Calif. June 11-13

Hoboken, N.J. June 22-24

San Dimas, Calif. Aug. 23-24

Stanford, Calif. Aug. 20-21

Professor-in-Charge G. Clayton Bassler Robert M. Silverstein G. Clayton Bassler Robert M. Silverstein Delos F. DeTar Carleton E. DeTar G. Clayton Bassler Robert M. Silverstein G. Clayton Bassler Robert M. Silverstein G. Clayton Bassler Robert M. Silverstein Jack Halpern Jack Halpern

Subject Spectrometric Identification of

Organic Compounds Spectrometric Identification of

Organic Compounds Computer Programs in Chem­

ical Research Spectrometric Identification of

Organic Compounds Spectrometric Identification of

Organic Compounds Spectrometric Identification of

Organic Compounds Coordination Chemistry and

Homogeneous Catalysis Coordination Chemistry and

Homogeneous Catalysis The following short courses will be given during the 152nd ACS Queens College, Queens Sept. 9-10 Andrew Streitwieser, Jr. St. John's UF Queens Sept. 9-10 James M. Bobbitt Brooklyn College, Brooklyn Sept. 10-11 Norman B. Colthup Columbia Uf New York City Sept. 10-11 Fred W. McLafferty Fordham U, Bronx Sept. 10-11 Howard E. Zimmerman St. John's U, Queens Sept. 12-13 James M. Bobbitt New York Uf New York City Sept. 14-17 Fred W. Billmeyer, Jr. Cooper Union, New York

City St. John's U, Queens Long Island U, Brooklyn

Sept. 15 Ralph G. Pearson Sept. 15-16 James M. Bobbitt Sept. 16-17 Kenneth H. Zabriskie, Jr.

National Meeting: Molecular Orbital Theory in

Organic Chemistry Thin-Layer Chromatography Interpretation of Infrared

Spectra Mass Spectrometry Photochemistry Thin-Layer Chromatography Molecular Characterization of

Polymers Modern Theory of Acids and

Bases Thin-Layer Chromatography Profitable Use of Chemical

Information See C&Er.N, April 18, page 80; May 9, page 72; May 16, page 64; and May 30, page 58 for regis­tration forms.

72 C&EN JUNE 6, 1966

New Dasol™A— crosslinker summa cum laude! For highly efficient crosslinking use Dasol A. Dasol A is a water-soluble polymeric dialdehyde — reactive with all compounds containing labile hydrogen. The above list provides only a mere 'suggestion of the scope of this highly diverse

MILES LABORATORIES, INC· Chemicals Division

Elkhart Indiana

C&EN 73

I am interested in new Dasol A. Send bulletin Q Send sample Π Have technical salesmen call Q

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polymeric material. If you have a monomer looking for a reaction, or a polymer to modify, try Dasol A — a brand new chemical from Miles research. Fill out and mail the coupon today for complete information.

MILES LABORATORIES. INC. Chemicals Division. Elkhart. Ind.

ACS ON THE AIR

SILO®!» Build a bridge between the resin and the reinforcement in a thermosetting resin system and a new page is added to strength of materials. The "bridge" is that chemical bond formed by UNION CARBIDE Silane Coupling Agents when applied to reinforcement or filler before molding. The results are:

POLYESTER

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) i

NFOR< Flaiu

) 3

: E O T> i l S t r · ) 4

1ERMO neth-1 0 &

SETT» 0Mp« ) (

40 RE

) 7

SINS

0 8 > 9 ) 10

Room Ttmp. I > 9 ) 10 > 9 ) 10

W»t I

> 9 ) 10

MELAMINE

> 9 ) 10

Room Ttmp.

) 10 ) 10

Wot I

) 10

EPOXV I

) 10

Room Ttmp. β I

) 10

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) 10

Wtt i

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PHENOLIC

) 10

Room T#mp.

) 10 ) 10

Wtl I

) 10 ) 10

In each example shown, the dark bar identifies non-silane treated (but heat-cleaned) glass cloth, while the light bar shows the same material plus silane coupling agent. Note how rigorous "wet" (2-hour boil) conditions really point up the tremendous improvement.

LIKEWISE THERMOPLASTICS Silane coupling agents have also been used in thermoplastic reinforced and filled systems with spectacular results. (Ever hear of a polystyrene stronger than nylon?) Glass doubles the strength of most thermoplastic resins . . . silane-fin-ished glass quadruples it — at room or elevated temperatures, or wet. Mineral filled systems respond comparably to this treatment: the strength lost in ex­tending various thermoplastics with min­eral f i l lers can often be recovered. Lower cost-to-strength ratios result in all systems.

We have a great deal of data in several ways to display the kind of improvements silanes effect in reinforced and filled resin compositions. Use of the handy coupon below will secure plenty of data for you.

SILICONES I Union Carbide Corporation

I Silicones Division 270 Park Avenue Dept.. N71

| New York, N.V. 10017 I RUSH data on silane coupling agents for I

π " π · - , - ι

Π thermosets Q thermoplastics

Name_ I I | Company. | Address I City I

_Title_

_State_ -Zip-

ALABAMA Anniston, WHMA, Sun. 7 P .M. , Army Chem­

ical Corps, Ft. McClellan Decatur, WMSL, Wed. 9:15 P .M. , North

Alabama Huntsville, WFIX, Sun. 6:45 P .M. , North

Alabama

ALASKA Anchorage, KNIF-FM, Sat. 4:15 P .M.

ARKANSAS Benton, KGKO, Sun. 4:30 P .M. , Central Ar-

JcdTiscis Conway, KCON, Sat. 6:15 P .M. , Central Ar­

kansas El Dorado, KELD, Sat. 11:15 A.M., South

Arkansas Fayetteville, KFAY, Sun. 12:15 P.M. , University

Hope, KXAR, Sat. 10:30 A.M., Ark-La-Tex Jacksonville, KGMR, Sat. 1:45 P.M. , Central Ar­

kansas Malvern, KBOK, Wed. 10:05 A.M., Central

Paragould, KDRS, Sun. 12:30 P .M. Nashville, KBHC, Sat. 12:15 P .M. , Ark-La-Tex

CALIFORNIA Barstow, KIOT, Sun. 8:45 A.M., Mojave Desert Fresno, KJMJ, Tues. 1:45 P .M. , California Los Angeles, KGBS, Sun. 5:15 A.M., Southern

California Sacramento, KCRA, Sun. 9:05 P.M. , Sacramento San Francisco, KXKX, Thurs. 7:30 P . M . & Sun.

2:45 P.M. , California Twenty-nine Palms, KDHI, Mon. 8:15 A.M. &

Fri. 5:15 P .M. , San Gorgonio

COLORADO Boulder, KBOL, Fri. 6:15 P .M. , Colorado Colorado Springs, KCMS, Thurs. 10 P .M. ,

Colorado Pueblo, KFEL, Mon. 4:45 P.M. , Colorado

CONNECTICUT Stamford, WSTC, Sat. 9:30 A.M., Western

Connecticut Waterbury, WBRY, Wed. 8:15 P .M. , Western

Connecticut Windsor, WSOR, Sat. 12:30 P.M. , Connecticut

Valley

DELAWARE Wilmington, WDEL, Sat. 12:45 P.M. , Wilming­

ton

FLORIDA Crestview, WJSB, Fri. 9:15 A.M., Florida Tampa, WUSF, Wed. 3:30 P .M. , University of

South Florida

HAWAII Honolulu, KGU, Sun. 12:45 P .M. , Hawaiian Kealakekua, KEKO, Thurs. 9 A.M., Hawaiian

ILLINOIS Carbondale, WSIU, Mon. 7:45 P .M. , Southern

Illinois University DeKalb, WNIC, Thurs. 7:15 P .M. , Joliet Evanston, WEAW-FM, Sun. 7:45 A.M., Chicago Macomb, WKAI, Sat. 11:15 A.M., Western

Illinois University Quincy, WTAD, Thurs. 3:45 P .M. , Quincy-

Keokuk Rock Island, WHBF, Mon. 10:15 P .M. , Illinois-

Iowa

INDIANA Goshen, WKAM, Sun. 12:45 P.M. , St. Joseph

Valley Indianapolis, WICR, Mon. 5:45 P .M. , Indiana

Central College Lafayette, WBAA, Wed. 9:30 P.M. , Purdue Lafayette, WASK-FM, Tues. 10:30 A.M., Purdue Terre Haute, WTHI-FM, Sun. 7:45 P .M. , Wa­

bash Valley

IOWA Ames, WOI, Mon. 10:05 A.M., Iowa State Uni­

versity Burlington, KBUR, Sun. 1:30 P .M. , Quincy-Keo-

kuk Cedar Falls, KTCF, Wed. 7:45 P .M. , State Col­

lege of Iowa Clinton, KROS, Sun. 7:35 P .M. , Illinois-Iowa Decorah, KWLC, Wed. 9:30 A.M., Luther Col-Keokuk, KOKX, Sun. 12:45 P .M. , Quincy-Keo-

Muscatine, KWPC, Sat. 5:15 P .M. , Illinois-Iowa

Waverly, KWAR-FM, Thurs. 9:30 P .M. , Wart-burg College

KANSAS Fort Scott, KMDO, Sat. 8:45 P .M. , Southeast

Kansas Lawrence, KLWN-AM, Sun. 4 P . M . ; FM, 6:30

P.M. , University of Kansas Manhattan, KSAC, Mon. 1:45 P .M. , Kansas State

University

KENTUCKY Danville, WHIR, Mon. 6:45 P .M. , Centre College Lexington, WBKY, Wed. 6:45 P .M. , University

of Kentucky Louisville, WFPL-WFPK, Daily 4:45 P .M. ,

Louisville Owensboro, WOMI, Sun. 6:45 P .M. , Indiana-

Kentucky Border

LOUISIANA Alexandria, KALB, Wed. 6:45 P .M. , Southwest

Louisiana Baton Rouge, WXOK, Thurs. 4:30 P .M. , Baton

Rouge Baton Rouge, WAIL, Sun. 9:15 A.M. , Baton

Rouge DeRidder, KDLA, Tues. 4:30 P .M. , Southwest

Louisiana Eunice, KEUN, Mon. 6:30 P .M. , Southwest

Louisiana Ferriday, KFNV, Sat. 2:15 P .M. , Ark-La-Tex Jena, KCKW, Sat. 5:15 P .M. , Ark-La-Tex Jennings, KJEF, Sun. 5 P .M. , Southwest Louisi­

ana Jonesboro, KTOC, Sat. 8 A.M., Ark-La-Tex Lafayette, KVOL, Sun. 8:45 A.M., Southwest

Louisiana La Place, WCKW, Wed. 9 P .M. , Louisiana Mansfield, KDBC, Sun. 3 P .M. , Ark-La-Tex Many, KWLA, Sat. 9:15 A.M., Ark-La-Tex New Orleans, WTIX, Sun. 7:45 A.M., Louisiana New Orleans, WWL, Sun. 5:30 A.M., Louisiana Oakdale, KREH, Tues. 2:30 P .M. , Southwest

Louisiana Shreveport, KRMD, Sat. 11:35 A.M., Ark-La-Tex Shreveport, KBCL, Sat. 9:45 A.M., Ark-La-Tex Shreveport, KEEL, Sun. 10:30 A.M., Ark-La-

Tex Sulphur, KIKS, Sun. 4:45 P .M. , Southwest

Louisiana Ville Platte, KVPI, Sat. 12:10 P .M. , Southwest

Louisiana

MASSACHUSETTS Boston, WHDH, Tues. 10 to 10:30 P . M . ,

No rth eastern Fitchburg, WEIM, Sun. 9:10 P .M. , Central

Massachusetts Winchester, WHSR-FM, Tues. 7 P .M. , Eastern

Mennonite College Worcester, WSRS, Sat. 12 P .M. , Central Massa­

chusetts

MICHIGAN Detroit, WQRS, Wed. 7 P .M. , Detroit East Lansing, WKAR-AM-FM, Wed. 11 A.M. ,

Michigan State University Grand Rapids, WMAX, Sun. 7 A.M., Calvin Col­

lege Hancock, WMPL, Sun. 4:45 P . M . , Upper Penin­

sula Kalamazoo, WKZO, Mon. 7:45 P.M. , Kalamazoo Kalamazoo, WMUK-FM, Tues. 5:45 P .M. , Michi­

gan State University Midland, WMDN, alt. Thursdays, 8:30 P .M. ,

Midland

MISSISSIPPI Brookhaven, WJMB, Mon. 2:30 P .M. , Mississippi Canton, WDOB, Sat. 8:30 A.M., Mississippi Greenville, WESY, Tues. 9 A.M., Mississippi Greenwood, WABG, Mon. 7:45 P.M. , Mississippi Gulfport, WROA, Sat. 6:45 P .M. , Mississippi Hattiesburg, WBKH, Mon. 12:30 P .M. , Missis­

sippi Houston, WCPC, Mon. 5:45 P .M. , Mississippi Kosciusko, WKOZ, Thurs. 5:45 & Sun. 5:30

P.M. , Mississippi Laurel, WNSL, Sat. 6:30 P.M. , Mississippi Meridian, WDAL, Sun. 6:15 A.M., Mississippi Natchez, WNAT, Wed. 9 P.M. , Mississippi Newton, WBKN, Mon. 11 A.M., Mississippi Oxford, WSUH, Sun. 9:15 A.M., Mississippi Pascagoula, WPMP, Mon. 5:30 P .M. , Mississippi Philadelphia, WHOC, Fri. 6 P .M. , Mississippi Starkville, WSSO, Sun. 6:15 P .M. , Mississippi Vicksburg, WVIM, Mon. 3:45 P .M. , Mississippi Vicksburg, WQBC, Fri. 2:45 P .M. , Mississippi

NEBRASKA North Platte, KJLT, Sat. 1 P .M. , Nebraska

NEW HAMPSHIRE Claremont, WTSU, Sat. 7:15 P .M. Hanover, WTSL, Sun. 9:10 P .M. , Northeastern

74 C&EN JUNE 6, 1966

UNION CARBIDE

We added 28% to the strength and 0.001% to the weight.

coupling agents from UNION CARBIDE SILICONES

C&EN 75

Ocean racing conditions generate up to 25 G's at 45-50 knots, trying to tear the Donzi hull and engine apart. Marine engineers (and other kinds too) find that finishing the glass cloth with a UNION CARBIDE Silane Coupling Agent adds strength without weight at modest cost. (Details: see our SILICOLOGY oppo­site.) And it works for both thermoplastic and thermoset resin/ glass systems!

This unitized, dimensionally accurate, pure fused quartz envelope (coil), of rugged de­sign, provides an excellent source for Xenon high intensity lighting or ultra-violet irradiation. The LAM-0-LUME can be sup­plied as a plain envelope or as a com­pleted tube with electrodes and rare gas.

FOR XENON SERVICE, which provides light intensities brighter than the sun, for out­door lighting, photography, etc., the unit­ized THERMAL AMERICAN LAM-0-LUME power supply comes complete with built-in capacitors and trigger circuit; provides 600 joule output with operating range be­tween 1000 and 1800 volts; delivers 35-50 lumens per watt second and a life of 10,000 flashes at rated input.

FOR ULTRA-VIOLET LIGHT SOURCE for ir­radiation, laboratory heat exchangers, laser pumping, etc., the LAM-0-LUME power supply is available with standard 400 watt average capacity. 43

Free catalog Π

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II 1 •

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_ | Aridret*

THERMAL AMERICAN FUSED QUARTZ CO.

RT. 202 & CHANGE BRIDGE RD. MONTVILLE, NEW JERSEY

ZIP CODE 07045

ACS ON THE AIR continued

NEW JERSEY Asbury Park, WHTG-AM-FM, Sun. 9:35 A.M.,

Monmouth County Bridgeton, WSNJ-AM-FM, Sun. evenings, vari­

able times, South Jersey Dover, WDHA-FM, Sun. 9:30 A.M., North

Î eTSGU Madison, WFDM, Wed. & Thurs. 6:30 P .M. ,

Fairleigh Dickinson University Millville, WMVB, Sun. 12:45 P.M. , South

Jersey Princeton, WHWH, Wed. 8:05 P .M. , Princeton South Orange, WSOU, Wed. 7:30 P .M. , North

1 GTSP'tJ

Trenton, WRCR, Thurs. 6:15 P .M. , Rider Col-

Vineland, WDVL, Sun. 12:45 P .M. , South J(2TS0tJ

Vineland, WWBZ, Tues. 6:45 P .M. , South Jersey

NEW MEXICO Albuquerque, KHFM, Thurs. 11:05 P .M. , Cen­

tral New Mexico University Park, KRWG-FM, Sat. 5:15 P.M.,

New Mexico State University

NEW YORK Albany, WOKO, Sat. 12:15 P .M. , Eastern New

York Bronx, WFUV, Wed. 7:15 P .M. , New York Canton, KSLU, Mon. 6 P .M. , St. Lawrence

University Corning, WCLI, Fri. 7:15 P .M. , Coming New York, WNYC, Mon. 6:30 P .M. , New York Olean, WHDL, Sat. 5 P .M. , Penn-York Rochester, WCMF, Sat. 4:30 P .M. , Rochester Watertown, WOTT, Sun. 11:45 A.M., Northern

New York

NORTH CAROLINA Asheville, WLOS, Sat. 9 P .M. , Western Caro­

lines Burlington, WBBB, Mon. 7:15 P .M. , Central

North Carolina Cullowhee, WWOO, Thurs. 7:15 P .M. , Carolina-

Piedmont Gastonia, WLTC, Sun. 4:45 P .M. , Carolina-

Piedmont Greenville, WOOW, Mon. 10:40 P .M. , Eastern

North Carolina Jacksonville, WJNC, Sat. 5:45 P .M. , Eastern

North Carolina Raleigh, WLLE, Sun. 12:30 P .M. , North Caro­

lina Rocky Mount, WEED, Sun. 9:15 P .M. , Eastern

North Carolina Wadesboro, WADE, Wed. 5:15 P .M. , Carolina-

Piedmont Washington, WEEW, Mon. 2:30 P .M. , North

Carolina Wilson, WGTM, Sun. 8:35 P .M. , Eastern North

Carolina

NORTH DAKOTA Grand Forks, KFJM, Tues. 2:15 P.M. , University

of North Dakota

OHIO Akron, WAPS, Mon. 10:55 A.M., Akron Public

Schools (8 times a week) Athens, WOUB, Wed. 9:15 A.M., Upper Ohio

Valley Chillicothe, WBEX, Tues. 6:15 P .M. , Columbus Cincinnati, WGUC-FM, Sat. 5:45 P .M. , Cin­

cinnati Columbus, WOSU, Sat. 12:45 P .M. , Columbus Delaware, WSLN-FM, Mon. 7:15 P .M. , Sun.

7:30 P .M. , Ohio Wesley an University Kent, WKSU-FM, Wed. 3:30 P .M. , Akron Marietta, WMOA, Fri. 7:15 P .M. , Upper Ohio

Valley Oberlin, WOBC, Mon., 7:15 P .M. , Oberlin Col-Oxford, WMUB-FM, Tues. 7:15 P .M. , Cincinnati Painesville, WPVL, Sat. 11 A.M., Northeastern

Ohio Struthers, WKTL, Thurs. 9:15 A.M., Penn-Ohio

Border Toledo, WTOL, Sun. 10:45 P .M. , Toledo Wilberforce, WJSC-FM, Thurs. 8:15 P .M. , Cen­

tral State College Wooster, WWST-AM-FM, Mon. 6:15 P .M. ,

Wooster Youngstown, WFMJ, Wed. 10:45 P .M. , Penn-

Ohio Border

Naha, KSAB, Sat. 4:30 P .M. , ACS National Office

OKLAHOMA Bartlesville, KWON, Sun. 9:05 P .M. , Oklahoma Ponca City, WBBZ, Sun. 6:15 P .M. , North Cen­

tral Oklahoma

ONTARIO Brockville, CFJR, Fri. 7 P .M. , CIC

PENNSYLVANIA Bloomsburg, WCNR, Mon. 9:45 A.M., Susque­

hanna Valley Braddock, WLOA-AM-FM, Sat. 3:30 P .M. ,

Pitts~buY2.it Gettysburg, WGET, Mon. 7:15 P .M. , South­

eastern Pennsylvania Lebanon, WLBR-AM-FM, Sun. 6:30 P .M. ,

Southeastern Pennsylvania Philadelphia, WIBG, Sun. 6:45 A.M., Philadel­

phia Philadelphia, WFLN-AM-FM, Sat. (alternating

Saturdays) 9:45 P.M. , Philadelphia Pittsburgh, WDUQ-FM, Wed. 4:15 P .M. ,

Pittsburgh St. Mary's, WKBI, Mon. 5:15 P .M. , Penn-York State College, WMAJ, Fri. 6:30 P .M. , Central

Pennsylvania Tyrone, WTRN, Sun. 12:15 P .M. , Central Penn­

sylvania Wilkes-Barre, WILK, Sun. 7:30 P .M. , Kings

College Williamsport, WLYC, Sat. 3:30 P .M. , Susque­

hanna Valley Williamsport, WRAK, Wed. 7:45 P .M. , Susque­

hanna Valley

PUERTO RICO Santurce, WKYN, Sun. 9:15 A.M., Puerto Rico

SOUTH CAROLINA Columbia, WIS, Tues. 7:45 P .M. , South Carolina Hartsville, WHSC, Sun. 12:45 P . M . & Wed.

7:15 P .M. , South Carolina

SOUTH DAKOTA Sioux Falls, KSOO, Sun. 12:20 P .M. , Sioux

Valley

TENNESSEE Cookeville, WHUB, Sun. 7:45 P . M . , Tennessee

Polytechnic Institute Knoxville, WUOT-FM, Mon. 5:45 P .M. , Eastern

1 (ZYlYieSSe 6 Nashville, WPLN, Fri. 9:15 A.M., & 5:15 P . M . ,

Nashville

TEXAS Atlanta, KALT, Mon. 1:15 P .M. , Ark-La-Tex Bonham, KFYN, Sat. 11:45 A.M., Ark-La-Tex Borger, KHUZ, Sat. 6:45 P .M. , Panhandle Plains Gladewater, KEES, Sat. 7 A.M., Ark-La-Tex Greenville, KGVL, Sat. 1 P .M. , East Texas State

College Henderson, KGRI, Wed. 9:15 A.M., Ark-La-Tex Longview, KLUE-FM, Sun. 9:45 P .M. , Ark-La-

Tex Marshall, KADO, Fri. 3:30 P .M. , East Texas

Baptist College Odessa, KOCV-FM, Thurs. 5:30 P .M. , Odessa

College Sinton, KTOD, Sun. 11 A.M., & Tues. 6:15 P . M . ,

South Texas

UTAH Salt Lake City, KCPX, Sun. 8:15 A.M., Salt

Lake

VIRGINIA Bristol, WCYB, Sat. 9:05 A.M., Northeast Ten­

nessee Harrisonburg, WEMC-FM, Mon. 7:15 P . M . ,

Eastern Mennonite College Richmond, WRVA, Sat. 6:30 P .M. , Virginia Richmond, WLEE, Sun. 10:15 P .M. , Virginia Waynesboro, WAYB, Sat. 11 A.M., Virginia

WASHINGTON Pasco, KALE, Sun. 6 P .M. , Richland

WASHINGTON, D.C. WAMU-FM, Fri. 11:15 P .M. , American Univer­

sity

WEST VIRGINIA Charleston, WTIP, Sun. 4:30 P .M. , Kanawha

Valley Elkins, WDNE, Sat. 6:45 P .M. , Northern West

Virginia Morgantown, WAJR, Fri. 7:15 P .M. , Northern

West Virginia

WISCONSIN Madison, WHA, Sat. 10:30 A.M., University of

"^tyi/SOO YLStYl Milwaukee, WUWM, Sun. 4:45 P .M. , & Fri.

7:30 P .M. , Milwaukee

76 C & E N J U N E 6, 1966

LAMOLUME PURE FUSED QUARTZ HIGH INTENSITY XENON OR ULTRAVIOLET LIGHT SOURCE

: VITREOSIL

CALENDAR OF EVENTS

American Chemical Society 152nd National Meeting. New York,

NY. Sept. 11-16, 1966.

153rd National Meeting. Miami Beach, Fla. April 9-14, 1967.

154th National Meeting. Chicago, III. Sept. 10-15, 1967.

Winter Meeting. New Orleans, La., Jan. 7-12, 1968.

155th National Meeting. San Francisco, Calif. March 31-April 5, 1968.

156th National Meeting. Atlantic City, N.J. Sept. 8-13, 1968.

ACS Division of Industrial and Engi­neering Chemistry. Industrial Ki­netics. Washington, D.C. June 1 3 -14 (C&EN, May 9, page 74).

ACS Division of CoHoid and Surface Chemistry. 40th National Colloid Symposium. University of Wiscon­sin, Madison, Wis. June 14-16 (C&EN, May 2, page 74).

ACS First Great Lakes Regional Meeting. Lake Towers Motel, Chicago, III. June 16-17 (C&EN, May 30, page 70).

ACS Northwest Regional Meeting, 21st Annual. University of British Co­lumbia, Vancouver, B.C. June 1 6 -17 (C&EN, May 16, page 69).

ACS Division of Polymer Chemistry. Polymer Symposium. Case Institute of Technology, Cleveland, Ohio. June 22-24 (C&EN, May 16, page 73).

ACS Division of Analytical Chemistry and Analytical Chemistry. Summer Symposium. University of Alberta, Edmonton, Alta. June 22-24 (C&EN, May 16, page 74).

ACS Division of Inorganic Chemistry. Summer Meeting. Inorganic Chem­istry of Fluorine. University of Michigan, Ann Arbor, Mich. June 27-28 (C&EN, April 25, page 72).

ACS Division of Medicinal Chemistry. 10th National Medicinal Chemistry Symposium. Bloomington, Ind. June 27-29 (C&EN, April 18, page 82).

ACS Division of Physical Chemistry. Summer Symposium. Michigan State University, East Lansing, Mich. Aug. 1-3.

ACS 2nd Western Regional Meeting. Jack Tar Hotel, San Francisco, Calif. Oct. 16-19.

ACS Division of Industrial and Engineer­ing Chemistry. 33rd Annual Chemi­cal Engineering Symposium. Uni­versity of Cincinnati, Cincinnati, Ohio, Oct. 2 0 - 2 1 .

ACS Southeastern Regional Meeting. Louisville, Ky. Oct. 27-29.

Other Organizations Manufacturing Chemists' Association.

Annual Meeting. The Greenbrier, White Sulphur Springs, W.Va. June 8-10.

American Leather Chemists Association. Annual Meeting. Chalfonte-Haddon Hall, Atlantic City, N.J. June 1 1 -14.

4th Congress of the European Federa­tion of Chemical Engineers. Technol­ogy and Economics in Process Plant. London, England. June 15-24.

IUPAC. 4th International Symposium on the Chemistry of Natural Products. Stockholm, Sweden. June 26-July 2.

Better Thirds for Better Living , ,„ through Chemistry

NEED TO CALM DOWN SURFACE TENSIONS IN AQUEOUS SYSTEMS?

Use Du Pont ZONYL® A surfactant It reduces surface/ interfacial tensions far more effectively than most nonionic surface-active agents. And it's essentially nonfoaming,

ZONYL A often brings sudden successes to aqueous systems where low surface or interfacial tensions are criti­cal. Stays stable in a variety of strong solutions. Performs well in jobs as varied as dyeing and metal processing.

Get more information about Du Pont ZONYL A. No obligation. Mail the coupon now for fast relief from tension and foam.

E. I. du Pont de Nemours & Co. (Inc.) Dyes & Chemicals Division, Room N-8524, WHming toJBe i . 19898

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