VOLUME
2 0, N O . 2, F E B R U A R Y
1948
EMSON
39 A
RUBBER
TUBING
Made from pure, natural Latex Seamless
Will not harden or crack Strong, yet soft and pliable φ Talc free; no talc used in processing φ Non-blooming and non-sulphur evolving BORE, Ins. WALL, Ins. PER FOOT BORE, Ins. WALL, Ins. PER FOOT
1/8 1/32 .09 5/16 1/16 .18
BORE, Ins. WALL, Ins. PER FOOT BORE, Ins. WALL, Ins. PER FOOT
1/8 3/64 .09 1/4 3/16 .32
φ Non-tacky φ Chemically pure φ Sterilizable without deleterious results • Uniformity of determination in bore and wall thickness guaranteed EMSON BLACK RUBBER TUBING 1/8 3/16 3/16 3/16 1/4 1/4 1/4 1/16 1/16 3/32 1/8 1/16 3/32 1/8 .12 .13 .21 .24 .16 .22 .26 5/16 3/8 3/8 1/2 5/8 3/4 1 3/32 1/16 3/32 1/8 1/8 1/8 1/8 .25 .20 .30 .50 .66 .70 1.40 EMSON AMBER RUBBER TUBING 1/8 3/16 3/16 3/16 1/4 1/4 1/4 1/16 3/64 3/32 1/8 1/16 3/32 1/8 .10 .11 .16 .18 .12 .17 .22 5/16 5/16 3/8 3/8 3/8 1/2 1/2 3/32 1/8 1/16 3/32 1/8 3/32 1/8 .18 .26 .18 .24 .29 .26 .35 is furnished in twenty-five foot lengths. AH sizes now in stock. or write for free sample.
Emeon rubber tubing is available in black or amber. The black tubing is furnished in 12 foot lengths packeid 48 feet to the box u;p to the half inch diameter, Larger sizes either twenty-four :Eeet or forty-eight itjet in a box. The amber
E. M A C H L E T T
Order today
& SON
ESTABLISHED 1897
LABORATORY APPARATUS
220 EAST 23RD STREET
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SUPPLIES · CHEMICALS
NEW YORK 10, Ν. Υ.
G L A S S A B S O R P T I O N CELLS OF FINE QUALITY
J
- ' '-KUtt Fused in an electric furnace with cement that is acid, alkali and solvent resistant.
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Sole manufacturer in the U n i t e d S t a t e s of fused Άτ E l e c t r o p h o r e s i s Cells. Mékers of complete Electrophoresis Apparatus
Optical Flat Walls. Many stock sizes are available. Special sizes made to order.
•KLETT SCIENTIFIC PRODUCTSKLETT-SUMMERSON PHOTOELECTRIC COLORIMETERS · COLORIMETERS· NEPHELOMETERS · FlUORIMETERS· BIO. COLORIMETERS · COMPARATORS · ELECTROPHORESIS APPARATUS · GLASS STANDARDS · GLASS CELLS · KLETT REAGENTS
Klett
MANUFACTURING CO., 177 East 87th Street New York, N. Y.
