BURRELL
VITREOSIL®
"For Scientists Everywhere"
PURE FUSED
LABORATORY SHAKERS
QUARTZ
a m a z i n g l y realistic wrist action® Y o u control procedures from gentle to violent shaking a n d repeat any opera t i o n , exactly, a t a n o t h e r t i m e . Side clamps take bottles and Erlenmeyer flasks. Loads need not be balanced.
Heavy-Duty M o d e l
E x c l u s i v e Build-Up® D e s i g n
ιυ
* * ^SISHK-——"·'
This rugged flat-top unit shakes up to 40 Erlenmeyer flasks or bottles.
One basic unit adapts to any combina tion. You build-up with an 8 place flat top and with side arms for 4, 12 or 16 flasks. ©Trademark Registered U.S. Patent Office
Cat. No. 75-765-16 75-785 75-765-08 75-775-08
Shaker Build-Up Wrist-Action Shaker, Size BT for 8 top and 8 side flasks Burrell Heavy-Duty Shaker, Size 40 for 40 flasks—flat-top only Build-Up Wrist-Action Shaker, Size Τ —for 8 top flasks Build-Up Wrist-Action Shaker, Size BB —for 8 side flasks For 115 volts, 60 cycle, one phase. Other voltages to order. Prices listed are F.O.B. Pittsburgh, Pa.
Ask for Bulletin No. 307
BURRELL
C O R P O R A T I O N
Scientific Instruments and Laboratory Supplies 2 2 2 3 FIFTH AVENUE, PITTSBURGH 19, PA. Circle No. 33 on Readers' Service Card 70 A
•
LABORATORY WARE
ANALYTICAL CHEMISTRY
Price 269.50 400.00 240.00 239.50
VITREOSIL is pure silicon di oxide fused together. Compared to glass, platinum or porcelain it can withstand higher temper atures, is unaffected by most acids, and is not porous to com mon gases at high tempera tures. VITREOSIL is an unusually good electrical insulator, and clear grade has excellent optical qualities. Fabricated in tubes, rods, flats, sheets, and blocks for lenses, laboratory and in dustrial ware, special fabricaÇ=? tion, and quartz to metal seals.
ΰ
More details in Chemical Engineering Catalog or Electronic Engineers Master or send for our free 32 page catalog. 2
THERMAL A M E R I C A N FUSED QUARTZ co. 'ïiITR!0_Sliy
RT. 202 & CHANGE BRIDGE RD. MONTVILLE, NEW JERSEY
Circle No. 8 on Readers' Service Card