VOLUME
2 1 , N O . 3, M A R C H 1 9 4 9
c
31 A
OLEMAN Model 7
PHOTO-NEPHELOMETER
A76-849C
The Coleman Nephelometer is designed to give precision measure ments of invisible suspensions. This instrument insures exact repro ducible turbidity measurements of numerous liquids encountered in clinical and industrial laboratories. Five overlapping Coleman standards cover the entire haze range, offering a universally appli cable system for expressing haze numerically. Coleman Photo-Nephelometer w i t h battery and connecting cable
SALES & SERVICE
$350.00
E. MACHLETT & SON
Bulletin B-213 available
ESTABLISHED 1 8 9 7
Laboratory
Apparatus
220 EAST 23RD STREET
·
Supplies
·
Chemicals
NEW YORK 10, Ν. Υ.
New Hamilton Faucets H E R E ' S g o o d n e w s for careful b u y e r s . . . all H a m i l t o n L a b o r a t o r y E q u i p m e n t is n o w s u p p l i e d w i t h faucets t h a t last as l o n g as t h e b u i l d i n g . T h e faucet b o d y , for i n s t a n c e , c a n ' t w e a r o u t . I t serves o n l y a s a w a t e r c o n d u i t a n d a s u p p o r t for t h e "operating unit." T h e "operating unit" is t h e h e a r t of this n e w H a m i l t o n faucet. I t i n c l u d e s all m o v i n g p a r t s . . . all p a r t s t h a t a r e subject t o w e a r . Install n e w w a s h e r s i n i t i n a m a t t e r of m i n u t e s . O r r e p l a c e t h e e n t i r e u n i t w i t h a s p a r e as easily as a light b u l b . Thus you stop costly leaks i n s t a n t l y a n d a v o i d serious i n t e r r u p t i o n of service. W a s h e r s last l o n g e r , t o o , b e c a u s e t h e n e w H a m i l t o n faucet closes w i t h t h e p r e s s u r e — n o t a g a i n s t it. All p a r t s t h a t m o v e i n w a t e r a r e M o n e l m e t a l t o resist c o r r o s i o n a n d a b r a s i o n . I n a d d i t i o n t o b e i n g efficient a n d p r a c t i c a l , it is a t t r a c t i v e a n d m o d e r n i n a p p e a r a n c e . O n l y H a m i l t o n gives y o u this n e w , l o n g - w e a r i n g , m o n e y - s a v i n g , s m a r t l y styled faucet. I n v e s t i g a t e i t before y o u b u y e q u i p m e n t . W r i t e for F A U C E T S P E C I F I C A T I O N S H E E T NO. 2000.
HAMILTON TWO
RIVERS
MANUFACTURING
COMPANY WISCONSIN
