Now in Use in Thousands of'Labs!
PROPIPETTE The
safe
Pipette
CLOSELY CONTROLLED HEATING . . . with fast-heating, versatile TEMCO Hot Plates for boiling, evaporations, etc. CORROSION-RESISTANT STAINLESS STEEl CASE
M l ALUMINUM TOP PLATE « M S DWDM. EVENLY
> VENTILATED 11 «IB CHANNELS, BAFFLES AND LOWERS FOR COOL. IROLIBLE-FREE OPERATION OF CONTROLS
accurate
Filler
for
Isotopes, Cyanides, TWO SECTION BODY . . ISOLATES CONTROLS FROM SOORCE OF HEAT
Acids, Bacteria and Other
I V INSULATION BELOW HEATING ELEMENTS
Dangerous
STEPLESS TEMPERATURE CONTROLLER (60· TO 455° C — 1 4 0 = TO 850° F.l AUTOMATICALLY COMPENSATES FOR VOLTAGE VARIATIONS
RECESSED CONTROL PANEL P8DTECIED AGAiNST SPILLASE AND OTHER DAMAGE
2100 SERIES
Solutions
This amazing new instrument is now standard equipment in government, medical and industrial laboratories throughout the nation. Offers more précise measurement (to 0.01 cc), more complete control, and avoids all t h e risks of mouth pipetting. Holds set level indefinitely, fits a n y pipette, operates easily with one hand. Order a supply of P R O P I P E T T E S now, $6.90 each.
INSTRUMENTATION ASSOCIATES
Here's the Hot Plate that processes your work preciselyl Completely variable regulation of temperature between 60° and 455° C. (140° to 850° F.). Built-in controls hold temperature to extremely dose limits, without variations due to line voltage changes. Economical to operate . . , current is "on" only half of the time to hold 260° C. (500° F.). Scientifically designed throughout to meet strict functional requirements. Two sizes: 1 2 " χ 12", 1500 Watts, and 12" χ 24", SOOO.Watts . . . both 7" high. $72.50 and $92.50. Write for new, free TEMCO-THERMOLYNE catalog and name of nearest dealer.
Circle No. 94 A-1 on Readers' Service Card, page 85 A
// IL
TEMPERATURE CONTROLLERS
TEMCO
ta
MAGNETIC STIRRING HOT PLATES
17 West 60th Street, N e w York 2 3 , Dept. A - 5 8 Send for current list of new scientific instruments
HOT PLATES ELECTRIC FURNACES
®
FLASK HEATERS
THERMO ELECTRIC MFG. CO.
478 Huff St., Dubuque, Iowa
Circle No. 94 A-2 on Readers' Service Card, page 85 A
POLARAD >·
À
ELECTRON RESONANCE SPECTROMETER
LABORATORY POT
CRUCIBLE
FURNACE (Type CR-5)
by
Custom-designed for diverse and specific spectroscopic analysis
L I N D B E R G T h i s rugged, c o m p a c t and versatile Lindberg Furnace provides m a x i m u m utility . . . as a pot furnace, a crucible furnace, a n d , w i t h available gas-tight retort, a retort furnace. W r i t e for Bulletin N o . 1063. S o l d only through laboratory supply dealers. '
LINDBERG
Utilizing the selective absorption of electromagnetic radiation by a substance when under the influence of a powerful, steady magnetic field, the unit supplies the following kinds of data:
• Free radical determinations · Substance Identification through its 'g' value · Molecular structure · Fine and Hyperfine structure • Dipole broadening · Exchange narrowing · Qualitative prediction concerning the nature and extent of radiation damage to biological materials · Metals, semiconductors and transitional elements. Scientific
Laboratory Equipment Division
Instruments
POLARAD
Division
ELECTRONICS
CORPORATION
LINDBERG ENGINEERING COMPANY 2440 West Hubbard Street, Chicago 12, Illinois Circle No. 94 A-3 on Readers' Service Card, page 85 A 94 A
·
ANALYTICAL CHEMISTRY
43-20 34th Street, Long Island City 1, N.Y. · EXeter 2-4500 Circle
No. 94 A-4 on Readers' Service Card, page 85 A
