ANALYTICAL
46 A
LABORATORY
THE
CHEMISTRY
SUPPLY CENTER
THROW AWAY Y O U R F U N N E L S A N D FILTER PAPER ! ! N o w You Can Filter Your Smaller Batches Easily, Q u i c k l y , and Economically • Application: Filters all industrial solutions • Construction: High temp, lucite filter cylinder, highest . WITH THIS PINT-SIZED FILTER! quality stainless steel (Type 316) pump and fittings • Economical: No loss of expensive solutions, complete drainage • Capacity: 50 gal./hr. • Filter Tube: Easily rinsed or backwashed. • Price: 1/2 price of Sethco's other high quality, low priced units WRITE TODAY FOR DESCRIPTIVE LITERATURE
1 0 5 - 0 9 1 50th Street, SETHCO JAMAICA 4 , New York SALES SOAR
STEADILY
F U
T Η
E S
POLARI METER
[
A B ^ M ^ f t Ε L L Ε D HIGH PRECISION · MODERATE PRICE
MODEL L S U - 5 PATS P E N D I N G
BIG SAVINGS ON LAB TUBING U i L U S l i u J Q u a n t i t y discounts of 10 to 25% on highest quality, natural color rubber laboratory tubing. Accurately dimensioned . . . will stay soft under long use. ALAN0L PLASTIC I C h e m i c a l l y i n e r t clear flexible plastic tubing, formulated to resist most acids and caustics. W i d e temperature range . . . may be steam sterilized. Ask us for price lists and sizes available. Samples supplied. Ask
us about
our pure
rubber
The NALGE Company
Your supplier or
KERN C O M P A N Y
S Beetcman Street New York 7
623 S. Goodman St., Rochester 2 0 , N.Y.
TÉtAMSPAKEUVT
COLEMAN Certified
insure fresh buffers at certified pH values
Precise...exactly compounded and packed in sealed vials to assure accuracy of 0.02 pH at all times. Available from 2.0 to 11.80 pH in 0.2 pH increments. For full details write for Bulletin AB-205.
COLEMAN INSTRUMENTS, INC.
118 MADISON ST., MAYWOOD, SERVICES
* Vitamin Assays b y biological, microbiological, and physicochemical means * Mineral Determinations * Food Bacteriology * Fungicidal and Bactericidal Evaluations * Insecticide Testing
WISCONSIN ALUMNI RESEARCH FOUNDATION P. O . Box 2059
POLISHING COMPOUND " C - R O " is α r e l a t i v e l y h e a v y , m e t a l lographic,
polishing
compound
in
which s m a l l , s h a r p u n i f o r m p a r t i c l e s p r o v i d e a f a s t , sure a n d f l a w l e s s cut ting action.
It polishes w i t h o u t b u r
nishing. W r i t e f o r Bulletin 2 0 8 . 194? FIFTH AVE
BURRELL
PITTSBURGH 19
—^—4
ORIGlNAL· MANDY
PENNSYLVANIA
ODHNER
CALCULATOR
Write for Leaflet TR-AC R. P . CARGILLE 116 Liberty St. New York ό, Ν . Υ.
Test Cell Electrical Measurements
•s «mwon
LABORATORY
BOXES
Fire Sizes: Maximum protection and visibility for samples, specimens, small parts and other objects easily lost.
BUFFER TABLETS
•
stopper.
"C-RO"
Madison 1 , Wis.
Materials — Liquid dielectrics, mineral oifsjpicisticizers, varnishes, resins, solvents, plastics, solutions
For T h e Chemist And Engineer
Measurements—Power factor, dielec tric constant, insulation resistance, con ductivity—-d-c. to 1 megacycle
Sturdy: Low Priced: Weight 12 lbs. Easy to Learn: New Back Transfer Device Speeds Up Calculations
Utilization—Standard measuring instru ments, easy to clean, handle, adjust to temperature, accurate
Ask For Bulletin BQ-43
Specifications—Supplied on request
J. C. BALSBAUGH Kendall Sq. Bldg., 238 Main St. Ill Cambridge 42# Mass.
dUARTΖ WARE FOR AND
INDUSTRY LABORATORY
A c o m p l e t e line of stand ard apparatus for h i s h temperature, micro, a n d radioactive analysis. Cus tom fabricating to meet your requirements. Write for price list and literature
THE PANRAY CORP. Quartzwarz Division 340 Canal St. New York 13
SOLE DISTRIBUTORS FOR U.S.A.
I V A N SORVALL, INC. 2 1 0 FIFTH AVE., NEW YORK 1 0 , Ν. Υ.
Want more basic facts on the Process Industries and the magazineswhich serve thefield most effectively? Send for our Data Sheet file. It will give you all pertinent data on markets, circulation, rates, readership, etc. Write to: Promotion Department, Reinhold Publishing Corporation, 330 West 42nd Street, New York 18, Ν. Υ.
