MANUFACTURERS' LITERATURE
Dipropionin 1-Docosanol N-Ethyl-n-butylamine Methyl benzenesulfonate Nitrocyclohexane Pyromellitic acid Vinyl butyrate
LEITZ 18
AND
POLARIZING
M I C R O S C O P E S
A C C E S S O R I E S
Pressure and Vacuum Gage
A new wide-range Zimmerli gage has been developed by Scientific Glass Ap paratus Co., Inc. The gage is intended for use at pressures up to 370 mm. of mercury above atmospheric, and for the full barometric range of reduced pres sures. The apparatus has long glass mem bers and is provided with a stopcock assembly to facilitate switching between measurements of absolute and of dif ferential pressures. 19
1. M o d e l
SY
Research instrument with synchronous rotation of polarizer and analyzer with fine adjustment (0.001mm) on double ball bearings.
2. Model
AM
Universal Research Microscope for transmitted and reflected polarized
Electric Manometer
light with focusing stage.
An electronic manometer for indicat ing the pressure of a contained gas in inches of mercury is being produced by Victoreen Instrument Co. The instru ment is for use with Victoreen VM-1 terminals, which are installed in the gas chamber. A constant current at high voltage is passed across the terminals. Pressures can be measured over a range of 3 to 7 inches of mercury. 20
3. Model
MOP
Ore Microscope for reflected or transmitted polarized light. Focusing stage permits accommodations of large objects. Coated optics.
MANUFACTURERS' LITERATURE
4. Model
HIM
Most popular student and laboratory chemical microscope. It permits the use of a
Laboratory Furniture. Catalog of 16 pages lists specifications and prices of laboratory furniture, .fixtures, acces sories, and special units. The Chemical Rubber Co. (Cat. 100). 21
complete line of polarizing accessories.
S. U n i v e r s a l
Table Tops. Folder of 4 pages de scribes advantages of chemical-, heat-, and shock-resistant sheet material for laboratory table tops and other work spaces and equipment. Johns-AIanville (Colorlith). 22 Stainless Steel Equipment. Catalog of 16 pages covers stainless steel sinks, tanks, trays, and accessories for labora tory, chemical processing, and photo graphic applications. P&H Sales Corp. (Cat. SE55). 23 pH Electrodes. Four-page folder gives reference table covering 60 glass, metal lic, and reference electrodes for Beckman pH meters. Will Corp. 24
and rapid determination of optical properties.
E. L E I T Z , I N C . Distributor oj the world-famous product* of Ernst Leitz, JVelztar, Germany
Ε . L e i t z , I n c . , Dept. AC, J,68 Fourth Avenue, New York 16, Ν. Y. Please send me your brochure on the
For further information, see coupon on page 39 A V O L U M E 2 7, NO. 6, J U N E
1955
_______
Name
,
Company Street
Electron Microscopes. Booklet of 22 pages covers design, specifications, and uses of electron microscopes. Radio Corp. of America. 25
Rotating
s t a g e For accurate
City
„. , State
.
For further information, circle number 51 A on Readers' Service Card, page 39 A
51 A
MANUFACTURERS' LITERATURE
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