NEWS
NEW Stronger More Durable
Preparation and Biological Applications.
AGILE POLYETHYLENE CUP SINK DRAIN
S. H. COHX, W. B .
LANE, J. C. SHERWIN, AND J. K. GONG.
Suspension of Aerosols in Turbulent Atmospheres.
LEO FINKEL-
STEIX AND SIDNEY J. MAGRAM.
Air-Borne Microorganisms as Analytical Tools in Aerosol Stud ies.
T. W. K E T H L E Y , CLYDE OKR, J R . , E. L. FIXCHER, AND
J. M. DALLAVALLE.
Thermodynamics and Kinetics of Reactions Involving Nitrogen Oxides and Oxy-Acids of Importance in Air Pollution. A. P . ALTSHULLEB.
Smog Experiments in Large Chambers.
JOHN T.. GOODWIN,
J R . , CALVIN BOLZE, AND FRANCIS V. MORRISS.
Oxides of Nitrogen in Smog Formation.
FRANCIS V. MORRISS,
CALVIN BOLZE, AND FBANK K I N G .
Kinetic Studies of the Formation of Atmospheric Oxidants. BERNARD E . SALTZMAN.
Tuesday Morning
SYMPOSIUM ON AIR POLLUTION (continued) L. C. McCABE, Presiding Introductory Remarks. Jos. W. K. HARETSSON. Current Developments in the Medical Aspects of Air Pollution. WILTON M. FISHEB.
Quantitative Aspects of Air Pollution in Relation to Health.
• · hes virtually _ ^ ϋ ^ > «rvice life
H. H. SCHRENK.
Synergistic and Antagonistic Effects of Mixed Air Contaminants. HEINRICH BREIGER.
Hazard Evaluation of Ozone and Oxides of Nitrogen. Modifying Toxicity.
Factors
HERBERT K. STOCKINGER.
Tissue Culture as a Tool in the Evaluation of Air Pollution. T h i s n e w a d d i t i o n t o t h e A G I L E line o f c o r r o s i o n resistant laboratory w a r e is t h e l o w cost a n s w e r t o d r i p p i n g sink drains a n d costly m a i n t e n a n c e . M o l d e d as o n e p i e c e i n natural color p o l y e t h y l e n e , the drain is s t r o n g , resilient, i m p e r m e a b l e a n d n o n - o x i d i z i n g . I t resists t h e corrosion attacks o f virtually a l l a c i d s a n d a l k a l i s a n d t o a large variety of solvents.
DONALD M. PACE.
Toxicologic Evaluations by Means of Dynamic Gassing Appara tus of New Design.
H. N. MACFARI.AND.
Monday Afternoon
SYMPOSIUM ON NEW METHODS FOR ANALYTICAL CHARACTERIZATION OF CELLULOSE (continued)
T h e drain is i m m e d i a t e l y available i n 3 " χ 6 " standard o v a l s h a p e w i t h t h e u p p e r r e t a i n i n g l i p d e s i g n e d t o fit a n y standard size laboratory b e n c h top. Its IV2" p i p e threaded tail p i e c e p e r m i t s fast, easy installation. A v a i l a b l e a t y o u r laboratory w a r e dealer — Price $15.00.
BENGT G. RANBY, Presiding Determination of the Cellulose Reactivity in the Viscose, Cuprammonium, and Acetate Process. RICHARD BARTUNEK. Discussion. FJse of C 14 -Labeled Reagents for the Study and Characterization of Cellulose and Other Polysaccharides. H. S. ISBELL, H. L. FRUSII, AND J. D . M O Y E R .
Discussion. Application of Nuclear Magnetic Resonance in the Investigation
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of Carbohydrate Materials. O'MEABA*
THOMAS M. SHAW AND J O H N P .
Characterization of Cellulose and Cellulose Derivatives by Means of the X - R a y CONRAD.
Spectrometer.
LEON
SEGAL
AND GAEL
M.
Discussion.
Tuesday Morning
SYMPOSIUM ON NEW METHODS FOR ANALYTICAL CHARACTERIZATION OF CELLULOSE (continued) O. A. BATTISTA, Presiding Hydrolysis Rates of Wood and Cotton Cellulose in Phosphoric Acid Solution. RANBY.
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R O B E R T H. MARCIIESSAULT AND B E N G T G.
Discussion. Evaluation of the Acetvlation Reactivity of Cellulose.
C. J.
MALM, K. T. BARKEY,' J. T. SCHMITT, AND D. C. M A Y .
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Discussion. Determination of the Acetyl Content of Cellulose Acetate by Near Infrared Spectroscopy. J. A. MITCHELL, C. D. BOCKMAN, J R . , AND A. V. L E E . Discussion. Near Infrared Spectroscopy of Cellulose and Its Derivatives. W I L B U R I. K A Y E .
Circle No. 22 A on Readers' Service Card, page 71 A
22 A
ANALYTICAL
CHEMISTRY
