$
8.58*
STIRS
250ml
ANYWHERE
11000
Portability with power! The high torque DC motor easily stirs liquids with the viscosity of water to 1750 rpm up to 10 hours without recharging; stirs 8 7 % glycerine—13% water at 1,000 rpm.
14.66* 50ml 12940
LaPIHl
Anywhere! PORTA-STIR™ is at home in refrigerators, glove boxes, incubators, dry boxes, in t h e f i e l d . I t ' s t h e f i r s t magnetic stirrer for cordless operation.
Porta-Stir"
THE
1
*
>4.74 24/40 16560
$
LAPINE SCIENTIFIC
250ml 14980
LAPINE
The line is quite complete. You'll find 72 items in beakers, crucibles, dishes, flasks, ground joints, heaters, tubes; 33 differ ent sizes of tubing. They're all listed and indexed in our regular PYREX® brand ware catalog. If
you don't have a copy, write for one. *A11 the prices above are net each. You can get the prices even lower since we give our regular labware quantity di scounts which range as high as 28%. If you have any questions, write to Laboratory Glassware Dept., 3910 Crystal St., Corning. Ν. Υ.
CORNING C O R N I N G GLASSS W O R K S
COMPANY
OFFICES A N D WAREHOUSES CHICAGO NEW YORK CALIFORNIA 6001 South So. B u c k h o u t St., 2229 McGee Ave., Knox Ave-, Irving. Ν. Υ. Berkeley 3, Calif. C h i c a g o 2 9 , III. Phone 914 Phone 4 1 5 Phone 312 LYric 1-8900 THornwall 5-3614 REIiance 5 - 4 7 0 0 Circle No. 139 on Readers' Service Card
t&EU
«Β»
WfCi
a*fcj
This is VYCOR® brand labware.
Compare it with fused quartz: You can work continuously at 9 0 0 ° t o 1 0 0 0 ° C . - (1652° t o 1832°F.) with this 96% silica ware. I t will even go to 1200°C. (2102 °F.) for short periods. It will withstand a 900 °C. thermal shock without a shudder. But it costs considerably less.
TOUCH:
348-07 Porta-Stir with LaPine LOZENGE® magnetic stirring bar . . . only $45 each.
11.83*
If you use clear fused quartz, ... check these prices
LAPINE
• Pure white case facilitates titrations • Corrosion proof and impact resistant polyethylene housing • Built in recharger for the nickel-cadmium batteries • Removable line cord • Stays cool
PUT THIS UNIQUE PROFESSIONAL SERVICE TO WORK FOR YOU TODAY!
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Circle No. 163 on Readers' Service Card
VOL. 30, NO. 11, OCTOBER
1964
•
51 A