Product Capsules Drench Showers. Details a n d illus trated literature available on drench showers and eye-wash fountains. H a w s Drinking Faucet Co., 1443 4th St., Berkeley 10, Calif. 55A Electrodes, Spectrograph^. Circle 16A for samples and information on preformed electrode designs for spectrochemical analysis of solu tions. United Carbon Products Co., Inc., Box 269, B a y City, Mich. 16A
Mfg. Co., 179 E. 87 St., N . Υ . , Χ . Y. 86A-3 Fluorometers. Circle 93A-2 for bul letin on photoelectric fluorometef t h a t provides precise measure ment for concentrations in micro or macro volumes. F a r r a n d Optical Co., Inc., Bronx Blvd. & E. 238 St., N. Y. 70, Χ . Υ. 93Α-2
Flask Heaters. Catalog available on heater with interchangeable monel mesh baskets t h a t accommo date several different flask sizes. Thermo Electric Mfg. Co., 478 Huff St., D u b u q u e , Iowa. 77A-2
Glassware. Circle 7A for copy of 350-pg. labwarc catalog. Features 8,500 pieces of " P y r e x " borosilicate lab glassware. New listing method and color-coding m a k e company's new catalog easv to use. Corning Glass Works, 72-3 Crystal St., Corning, Ν . Υ. 7A
Flowmeters. Bulletin available on predictability flowmeters with guards. Instrument enables the calculation of the calibration curve directly. T h e Emil Greiner Co., 20-26 N . Moore St., N . Y. 13. Ν . Υ.
Glassware. " L a b - C r e s t " stopcockequipped lab glassware eliminates lubrication, leakage, and freezing. Circle 58A for catalog. Fischer & Porter Co., 1538 County Line Rd., Hatboro, Pa. 58A
3A
Fluorimeters. Klett fluorimeters are designed for the rapid and a c curate determination of thiamine, riboflavin, and other substances which fluoresce in solution. Klett
COORS U.S.A.
Glassware. Circle 18A for catalog containing complete information on distillation glassware. Ace Glass Inc., Vineland, N . J. 18A Glassware
2-color booklet explaining in detail the economics involved in the pur chase of laboratory glassware. Doerr Glass Co., \ r ineland, N . J. 21A
Glassware. 234-pg. catalog con tains complete information on Kontes outer ground joints. Kontes Glass Co., Vineland, N . J. 40A Glassworking Lathe. Circle 82A-1 for catalog and copy of manual "Glass Blowing on the Glass L a t h e . " Bethlehem A p p a r a t u s Co., Inc.. Hcllertown, P a . 82A-1 Glove Boxes. Detailed catalog available on controlled atmosphere box: a low-cost " l a b o r a t o r y " for hazardous or high purity materials. Kewaunee Mfg. Co.. 5090 S. Center St., Adrian, Mich. ' 95A-1 Heaters. Circle 24A-1 for catalog on new and improved line of " B r i s k e a t " heating jackets. Circle 24A-2 for brochure on " B r i s k e a t " drum heaters. Circle 24A-3 for brochure on custom fabricated heating blankets. Briscoe Mfg. Co.. Columbus 3, Ohio. 24A-1,2,3
Circle 21A for 16-page,
(Continued mi page 91 A)
ALUMINA MORTAR AND
PESTLE
IS D E S I G N E D CORRECTLY—CAREFULLY M A D E O F T H E F I N E S T M A T E R I A L S T O GIVE O U T S T A N D I N G SERVICE . . .
The distinctive shape of the Coors Alumina Mortar and Pestle is made possible because of the extremely high mechanical strength of the 9 6 % a l u m i n u m o x i d e . This unique shape allows t h e mortar to b e more firmly and comfortably held. THE RUBBER RING INSERTED IN THE BASE PREVENTS SLIPPAGE A N D ACCIDENTAL LOSS O F SAMPLE
THE COORS No. 524 ALUMINA MORTAR AND PESTLE p o s s e s s e s t h e h a r d n e s s of sapphire and its t o u g h , h a r d aluminum o x i d e surface resists wear a n d c o n s e q u e n t sample contamination.
CROSS SECTIONAL VIEW
COORS PORCELAIN C O M P A N Y GOLDEN, COLORADO For further information, circle number 90 A on Readers' Service Card, page 83 A 9 0 A
·
ANALYTICAL
CHEMISTRY
