VOLUME
2 1, N O . 4, A P R I L
1949
41 A
To: Schleicher & Schuell Co. 116 W . 14th St., New York 1 1 .
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Free o f c h a r g e t o chemists, biologists, metallurgists, a n d purchasing agents.
PHOTOVOLT
LUMETRON
L i n e - Operated
Electronic
Photoelectric COLORIMETER and FLUORESCENCE METER
DH
METER
A truly universal • • • • • •
TRANSMISSION FLUORESCENCE TURBIDITY U. V. ABSORPTION
instrument
Mod. 402EF for d e t e r m i n a t i o n of Vit. Bi a n d Bz
for laboratory and industrial application for all types and designs of electrodes for p H , titration, and oxidation-reduction potentials for all A C power lines 90-275 volts 50-60 cycles available with or without portable wooden housing furnished with shielded glass electrode, available also with shielded compartment for unshielded electrodes
PHOTOVOLT 95 Madison Avenue Also
A high precision instrument of unusual flexibility for all tests involving . . .
Colorimeters Fluorescence Meters
CORP. N e w York 1 6 , N . Y. Reflection Meters Densitometers
Also Colorimeters Densitometers Reflection Meters Smoke Meters Glossmeters Vitamin A Meters Continuous-Flow Colorimeters Write for
Literature
PHOTOVOLT 95 Madison A v e .
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CORP. New York 16, Ν. Υ.
