W. Heffer & Sons Limited

THERMOLYNE CORPORATION. 2555 KERPER BLVD. DUBUQUE, IOWA. ^. Contact Dept. 478G for name of nearest dealer. Circle No. 70 on Readers' Service ...
0 downloads 0 Views 198KB Size
THERMOLYNE Laboratory Apparatus for:

0 " HEAT Π LIGHT Π MOTION

HOT PLATE 1900 is the toughest most accurate we know about

W e d o not k n o w ourselves h o w l o n g a Type 1900 can last. Dealers say many are already 10 years o l d . Embedded heating elements, r e i n f o r c e d stainless steel case, strong phenolic f e e t , simple precise c o n t r o l match each o t h e r in durability. •

PRECISE TEMPERATURE CONTROL Holds w i t h i n 5F u p t o 200F (93C) holds w i t h i n 2F over 200F t o 700F m a x i m u m .



EMBEDDED HEATING ELEMENTS specially d e v e l o p e d b y Thermolyne, protect elements, p r o m o t e even t e m ­ peratures, s i m p l i f y maintenance and repair.



EFFICIENT OPERATION—Fast heat u p — Demand t y p e thermostatic c o n t r o l gives f u l l p o w e r u n t i l c o n t r o l p o i n t reached —Load determines p o w e r f l o w t o main­ t a i n set t e m p e r a t u r e .



UNDERWRITER'S LABORATORIES, I N C . —entire unit listed not just w i r e or heaters. PRICE

$22.75

NEW!

40-Page c o m p l e t e tine catalog o f h e a t / l i g h t / m o t i o n items: furnaces, controllers, hot plates, magnetic stirrers, StirPlates, constant t e m p , apparatus, Dri-Baths, culture incubators, PBI A p p a r a t u s , lab lights, meters.

Write n o w for F R E E copy of Catalog 65

THERMOLYNE CORPORATION 2 5 5 5 KERPER BLVD. DUBUQUE, I O W A

__

Contact Dept. 478G for name of nearest dealer Circle No. 70 on Readers' Service Card 122 A

·

ANALYTICAL CHEMISTRY

THE JOURNAL publishes Original Papers describing significant develop­ ments in analysis and instrumentation,· Papers reviewing recent developments; N e w appara­ tus; Book Reviews THE ABSTRACTS give complete coverage of all analytical literature Annual Subscription to The Analyst and Analytical Abstracts . . . $ 2 8 . 0 0 Post Free The Analyst is NOT sold without Analytical Abstracts

O f f i c i a l , Standardised and Recommended Methods of Analysis of the Society, a 577page book, is now available, price £6.6s. (postage extra) PUBLISHED FOR

THE SOCIETY FOR ANALYTICAL CHEMISTRY (Great Britain)

by W . H e f f e r & Sons L i m i t e d , Petty C u r y , C a m b r i d g e , England