THERMOREGULATOR
The M a t h e s o n Co., Inc. East Rutherford, N. J . a n d Joliet, I I I .
Motorola Communications & Electronics, Inc. 4 5 0 1 West Augusta Blvd. Chicago 51,111.
Supplies compressed gases (rare or com mon or in any mixture thereof) in cylinders for commercial laboratory or schoolroom use. MC&B Div. supplies over 4000 fine organic chemicals, inorganic reagents, stains, solu tions, and indicators.
Complete two-way radio communication systems, mobile, fixed station, or portable units for all requirements. Radio paging systems, selective control and telemetering equipment, microwave systems.
precision engineered
M c K e n n a Laboratories 2 5 0 3 M a i n St., Santa M o n i c a , C a l i f .
for
Laboratory ultrasonic generators for re search and development of products and processes. Production size ultrasonic equip ment for ultrasonic processing and ultra sonic cleaning.
• SPEED •EASE
R. R. M e n d e l s , Inc. 4 1 East 4 2 n d St. N e w York 1 7 , Ν . Υ .
• ACCURACY
Newly Developed patented Rimenco laboratory clamp eliminating glass breakage, considerably easier handling because holding tightly but flexibly. Information available on request.
For every laboratory or industrial use where ac curate regulation of tem perature is desired in electrically heated baths, ovens, incubators, valves or other instruments and apparatus. •
Sensitivity to l / l O O C.
•
Temperature can be simultaneously
•
Self-contained KEY T h e r m o Regulator is d e s i g n e d f o r l o n g , trouble-free service
Merck & Co., Inc. 126 East Lincoln A v e . R a h w a y , N. J.
Important Merck laboratory chemicals are inorganic reagents, mineral acids, amino acids, and a most extensive line of reagent laboratory solvents, including seven spectro grade reagents. New catalog available on request. It gives descriptions, container information, and prices on more than 1000 Merck laboratory chemicals and lists all the company distributors.
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M e t a l a b Equipment Co. 2 5 2 Duffy A v e . H i c k s v i l l e , L.I., N.Y.
PRICE
$35
Manufactures a complete line of labora tory equipment and furniture in metal and wood, such as center tables, wall tables, chemical fume, air-conditioned, radiochemi cal, and isotope hoods, storage cabinets and cases, multipurpose units, auxiliary tables, corner and sink units, specialized equipment, and accessories. Metro Industries 11-38 31 A v e . Long I s l a n d C i t y 6 , Ν . Υ.
A n ew
LABORATORY PUMP 'ressure or
acuum
A small, compact pump with a t r o u b l e f r e e , brushless motor m a d e for continu ous duty. D i a p h r a g m o p e r a t e d a t 1 5 0 0 strokes per minute make f o r smooth, positive action with no chance o f con tamination or corrosion. No e x t e r n a l moving parts, no belts t o slip, p e r m a nently l u b r i c a t e d ball bearings, a r e a d d i tional features that make this pump one o f the finest f o r l a b o r a t o r y use. SPECIFICATIONS DIMENSIONS: 6V4" χ 3 5 /»" χ 4Ά" WEIGHT: 4
