2000ºF in 55 minutes Great for drying, ashing, fusing, heating, enameling, experimenting Four walls of heat radiate into the chamber of this Lindberg Hevi-Duty box furnace. Top, bottom and both sides. Result is +4° uniformity throughout the chamber. And the heat stays in the chamber because of our unique double-wall construction. The furnace's outer shell re-
mains cool and safe to the touch. The chamber cools quickly, though, when you want. From 2000°F to 1000°F in about one hour. Choose from six different models for operation to 1850°F or 2200°F; chamber sizes of 5 W W χ 33/4"H χ 8"D to 7 W W χ 5 W H χ 14"D. All are available with
LINDBERG
our exclusive solid-state automatic controller that maintains temperature within ±2°F. Want to know more—about this or others in our broad line of precision laboratory heating equipment? See your lab supply dealer or write to 2450 W. Hubbard, Chicago, Illinois 60601.
HEVI-DUTY
IN C A N A D A : L I N D B E R G H E V I - D U T Y C A N A D A L T D . , 1 5 P E L H A M A V E N U E , T O R O N T O 3 , O N T A R I O OTHER DIVISIONS: A N C H O R ELECTRIC · ENGINEERED C E R A M I C S · HEVI-DUTY ELECTRIC · N E L S O N ELECTRIC · SOLA ELECTRIC Circle No. 45 on Readers' Service Card See ACS Laboratory Guide for All Products/Sales Office VOL. 4 0 , N O . 3, MARCH l 9 6 8
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