beside the S T I L L waters... there's always the L O U G H B O R O U G H ALL Two highly productive models available:
Br
GLASS
WATER
/
S T I L L //
4 LITERS PER HOUR and 8 LITERS PER HOUR
COMPACT · INGENIOUS
· EFFICIENT
COMPACT: Only 3 components: condenser, boiling reservoir, immer sion heater (automatic overload protected). INGENIOUS: Reservoir fills from tap and automatically maintains con stant water level. Cooling water in condenser recycles to boiling reser voir . . . preheated. Steam trap allows only vapor to enter condenser — no solids. EFFICIENT: Distillate produced is py rogen free and analyses have shown it to contain less than one part in 10 millions of iron, copper, chromi um or nickel. Write for brochure LSI—A
Bellco
GLASS INC. V I N E L A N D , N . J .
Circle No. 4 on Readers' Service Card
POTENTIOGRAPH AUTOMATIC RECORDING TITRATOR We believe that t h e Metrohm Potentiograph is not only t h e most versa tile, but also t h e most accurate recording titrator. A demonstration or trial c a n be arranged in your labora tory — without obligation, of course. We invite direct comparison of per formance to any other instrument available. The Potentiograph is the only record ing titrator which offers micro a n d macro burettes for capacities f r o m 1 to 5 0 ml and single or dual titration assemblies. T h e stand is adjacent t o the basic instrument so t h a t acci dental spillage of corrosive materials cannot d a m a g e recorder a n d other c o m p o n e n t s . Recording on single sheet or strip chart. PRICE $ 2 5 6 0 complete WRITE FOR CATALOG PT 4 1 1
METROHM
BRINKMANN INSTRUMENTS, INC. 115 Cutter Mill Road, Great Neck, Ν. Υ. PHILADELPHIA • CLEVELAND · HOUSTON · MIAMI MENLO PARK. CAL. · ST. LOUIS
Circle No. 158 on Readers' Service Card
VOL
3 4 , N O . 1 , JANUARY 1 9 6 2 ·
2 9 A
