P H O T O BY W I L L C Ο Ν Ν Ε Ι.
You'd
know them anywhere. Beckman pH electrodes...recognized as the finest... and Beckman's Model G pH Meter...described in the literature as the standard of pH measurement. Beckman pH meters and electrodes are used in thousands of laboratories throughout the world, H Your laboratory apparatus dealer provides prompt delivery on Beckman pH meters and electrodes, including t h e newest models. Call him today or write to us for a list of dealers and current pH meter information. Ask for Data File 2L-41-15. B e c k m a n Scientific Instruments
Division
2500 Fullerton Road, Fullerton, California a division of Beckman Instruments, Inc. ULTRAVIOLET A N D INFRARED SPECTROPHOTOMETERS · GAS C H ROM ATOGRA PH S · P H METERS · E L E C T R O C H E M I C A L I N S T R U M E N T S S A L E S A N D S E R V I C E F A C I L I T I E S A R E M A I N T A I N E D BY B E C K M A N / l N T E R N A T I O N A L D I V I S I O N I N F I F T Y C O U N T R I E S For further information, circle number 51 A on Readers' Service Card, page 89 A