A DEMAND FOR M O R E . . .
SO NOW THERE ARE FOUR FOUR B A N T A M W A R E KITS The best m i n i a t u r e glassware—Bant a m w a r e . The best way to use it—in a B a n t a m w a r e Kit. A n d now t h e r e are f o u r d i f f e r e n t kits, for t h e exact s e t - u p you n e e d . Kit No. 1 has ball a n d socket t y p e joints on all inclined c o n d e n s e r connections. A second kit is t h e s a m e , except t h a t it has Teflon® instead of glass stopcock plugs on all a p p r o p r i a t e i t e m s . A t h i r d kit r e s e m b l e s Kit No. 1 b u t s u b s t i t u t e s s t a n d a r d t a p e r joints for ball and socket joints. T h e f o u r t h kit has t a p e r e d joints a n d Teflon stopcock plugs. There are over 4 0 glassware i t e m s in each kit—all y o u need for f r a c t i o n a tion, steam, atmospheric and vacuum distillation, c h r o m a t o g r a p h i c analysis, extraction, filtration, reflux and separation. Convenience a n d utility are p r o v i d e d in all B a n t a m w a r e Kits. Select one of t h e m for t h e exact c o m p o n e n t s y o u need for your laboratory. K-27010 The Original with Ball and Socket Joints$440.00 K-27011 The Original- w/Teflon Stopcocks $444.00 K-27012 A New K i t - Tapered Joints throughout $438.75 K-27013 The New Kit-w/Teflon Stopcocks $442.75
New 3 2 page B a n t a m w a r e catalog BW-2 now available. W r i t e for y o u r f r e e copy today. © E. I. Du Pont De Nemours & Co.
Product Capsules Filter Papers. Samples of and d a t a on analytical filter papers. 89 Flow Counters. Details on new M o n o Mol window unit. 180 Fluorescence Meters. Bulletin on lineoperated multiplier unit. 194 Fraction Collectors. Transistorized for chromatographic separations. 167 Fume Hoods. fume hoods.
bantam-ware® by K O N T E S G L A S S C O . Vlneland . N . J .
D a t a on full line of lab 174
G o n i o m e t e r s . Optical unit identifies crystalline substances. 139 Hot Plates. Brochure designed electric unit.
on
Integrators. D a t a on mechanical, electronic, pneumatic units. 87 Ionization Kits. For ultra-high sensitivity gas chromatography. 104 Isotopes. Line of 300 radioactive and stable isotope products. 97 Leak Detectors. Brochure on sensitive leak test stations. 163 Lubricants. New "Teflon"-like purpose dry film lubricant. New
pen
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Pick the exact size bath that fits your space and capacity requirements
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Insist upon absolutely positive and 100% repeatable speed control — without interference from line voltage fluctuations
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Specify guaranteed temperature uniformity (±0.5°C or better) over widest temperature range (ambient to 100°C)
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Ask for instant stroke rate adjustability (from 40 to 200 oscillating cycles per minute)
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Demand 1/2", 1 " , 1-1/2" optional cam settings—for greater variety of shaking actions or patterns
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Be choosy about appearance —keep your laboratory the most modern and attractive
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Reject all but the most sturdily built, double walled, stainless steel shaker baths . . . precision insulated and welded . . . equipped with ±0.1°C super sensitive hydraulic thermostat
newly140
Instruments. Circle 181, 182,183, 184, 185 for d a t a on new spectrophotometers. New t e m p e r a t u r e programmer, 186; new hydrocarbon detector, 187; " I n s t r u m e n t News," 196. 181, 182, 183, 184, 185, 186, 187, 196
Markers. surface.
DEMAND THE MOST... IN SHAKER BATHS
writes on
Microscopes. F r o m 17.5x to without step magnification.
all81 any 212 1940x 27
For Performance...For Results...For Pride of Ownership . . . why not insist upon the ABSOLUTE FINEST . . . at no extra cost? Be fussy! Get PRECISION Shaker Baths — be completely satisfied.
Microscopes. Interference unit measures optical p a t h difference. 31 Microscopes. Booklet stereomicroscopes.
on
precision 21
Mixers. Electronic controlled provides constant torque. Mixers. Bulletin on line of duty mixers and accessories.
unit 63
heavy146
Molecular Models. Booklet on new models for 3-dimensional studies. 4 2 Molecular Models. Kit supplementary atoms.
with
new 115
Neutron Sources. Van de Graaff accelerators provide neutron fluxes. 13
Since 1920
PRECISION S C I E N T I F I C CO.
Nuclear Instruments. Catalog on proportional counting system. 78 Nuclear
Instruments.
liquid scintillation unit.
D a t a on new
Ill
N u c l e a r I n s t r u m e n t s . Details on autoCircle No. 134 on Readers' Service Card
134 A
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ANALYTICAL CHEMISTRY
matic well counter.
3 7 3 7 W E S T CORTLAND STREET CHICAGO 4 7 . ILLINOIS LOCAL OFFICES IN: CHICAGO · CLEVELAND HOUSTON · NEW YORK PHILADELPHIA · SAN FRANCISCO
155 Circle No. 84 on Readers' Service Card
