GREASELESS
HI-VACUUM GLASSWARE
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Handiest 0 Ring Joint available The unique Delmar-Urry O-Ring Joint has three pressure ridges. These multiple pressure points within the O-Ring joint provide truly positive seals at pressures down to l O - ' m m and at temperatures f r o m - 4 0 ° F to 500°F.
F O R T H E REALLY H A R D J O B S One of the best materials for hand BORON grinding-almost diamond-hard, inert, CARBIDE resistant to acids and alkalis. Cavity MORTAR diameters. W to 3". AND PESTLE Special sets have offset handles for SETS grinding on a microscope stage.
SPEX Agricultural and Fo° d Chemistry
INDUSTRIES, INC. · 3880 PARK AVENUE · METUCHEN, N. J. Circle No. 11 on Readers' Service Card
YOU CAN FIND OUT WHAT'S NEW AND WHAT TO EXPECTin chemical materials and methods, trends and developments in food processing and agricultural chemistry
Moreover, you will find ideas that may help you solve specific problems, evolve new processes or methods, save money, avoid the costly errors of "blind-alley" research. How? By keeping up with the significant new technical developments in these fields through the pages of the JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY. You will learn about the effects of various chemicals on dairy products, fruits, grains, meats, poultry, seafoods and vegetables as they relate to flavors—odors—discoloration — preservation — tenderness—nutritional value—deterioration—fallout factors of Strontium-90 and Cesium-137 in plant and animal tissues
Greaseless Stopcock A new grease free stopcock for pressures down to 10-4mm. Usable in the temperature range from - 4 0 ° to +200°C Available in sizes from 0 to 4mm and 0 to 10mm. Write
for Catalog
60D2A
Delmar
SCIENTIFIC LABORATORIES 317 MADISON SJ., MAYWOOD, ILL.
A SUBSIDIARY OF COLEMAN INSTRUMENTS, INC.
foodstuffs analysis—characterization of essential oils—fermentation effectiveness of pesticides—insecticides, herbicides, and fungicides—residue factors—attractants — toxicology studies — additives — flavor effects plant nutrients and regulators—growth stimulators—fertilizer technology—effects on nutrition, soils, storage radiation preservation—adulteration detection — off flavors—beverage preservation — additives—stilbestrol effects—and many others.
This is just a partial listing of the many topics covered. These stimulating, idea-provoking original papers are MUST reading for agronomists, bacteriologists, biochemists, biologists, chemists, entomologists, nutritionists, research directors and technical management concerned with chemicals used in agriculture and food processing of all types. Put this solidly technical, bimonthly journal to
work for you. Use the handy form below to order your subscription today.
American Chemical Society 1155 Sixteenth Street, N. W. Washington 6, D. C. Please enter my subscription to the JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY for one year, beginning with the January-February, 1963 issue. My payment of S is enclosed. D $10* American Chemical Society members only. • $20* Nonmembers of American Chemical Society. D New D Renewal Name Home Address City
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Business Address City Zone State D Check here if you want publ. ation sent to business address. My principal duties are: Π Technical Management α Corporate Management Π Product Design & Development Π Product Research D Process Research D Process Design & Development D Production— Processing • Purchasing D Analysis—Testing D Consulting Π Teaching Other •Canadian postage 50c additional; PUAS 60c; Foreign $t.50 NOTE: The JOURNAL OF AGRICULTURAL AND FOOD CHEM ISTRY is published bimonthly and sold on a calendar year basis only.
Circle No. 144 on Readers' Service Card
VOL. 35, NO. 7, JUNE 1963 ·
145 A
