ADVERTISED PRODUCTS GUIDE Pasadena Hydraulics Inc.
1956, Apr. S9A 131.
PRESSURE REACTION APPARATUS
Autoclave Engineer, Inc.
1955, M a y 18A Parr Instrument Co. 1955, June 18A 1956, Jan. 34A 132.
PROTECTIVE DEVICES, DISTILLED WATER
Barnstead Still & Sterilizer Co.
1955, Sept. 60A, Oct. 41Λ 1956, J a n . 64A, F e b . 57A, Apr. 8A, P a r t I I 24A 133.
PUBLICATIONS
International A r t & Science Book Co.
1955, Sept. 67A, O c t . 78A, N o v . 72A, D e c . 56A
140. REFRACTOMETERS Bausch & Lomb Optical Co. 1956, Apr. O B C Consolidated Electrodynamics Corp. 1955, J u l y 9A, Sept. 11A Ercona Corp. 1955, M a y 48A Jarrell-Ash Co. 1956, Apr. 75A, P a r t I I 8A Zeiss, Carl, Inc. 1955, J u n e 16A, D e c . 25A
Reinhold Publishing Corp.
1956, F e b . 60A Ronald Press Co. 1956, M a r c h 30A Society for Analytical Chemistry 1955, Oct. 37A 1966, Apr. 69A Welch, W. M., Scientific Co. 1955, Sept. 52A 1956, J a n . 50A 134.
PUMPS
Barnstead Still & Sterilizer Co.
1955, Sept. 60A, Oct. 41A 1956, J a n . 64A, F e b . 57A, Apr. 8A, P a r t I I 24A Bel Art Products
1956, Eastern 1955, 1956, 14A
Apr. P a r t I I 16A Industries, Inc. J u l y 41A, D e c . 25A F e b . 85A, A p r . P a r t I I
Fisher Scientific Co.
1956, A p r . P a r t I I 13A General Laboratory Supply Co. 1956, A p r . P a r t I I 56A Metro Industries 1956, A p r . P a r t I I 54A Schaar & Co. 1955, M a y 27A, Oct. 44A Sigmamotor, Inc. 1956, F e b . 91A Welch, W. M., Scientific Co. 1956, F e b . 78A 135.
PUMPS, Vacuum
Central Scientific Co.
1955, J u n e 26A-27A, Sept. 17A. Oct. 48A-49A 1956, Apr. P a r t I I I F C Delmar Scientific Laboratories 1955, J u n e 20A, S e p t . 32A Fisher Scientific Co. 1956. Apr. P a r t I I 13A Wakefield Industries, Inc. 1955, J u l y 27A, Sept. 59A, N o v . 51A 1956, J a n . 68A, M a r c h 40A Welch, W. M., Scientific Co. 1955, J u n e 38A, Aug. 28A, N o v . 54A 136.
PYROMETERS
Thermo Electric M f g . Co.
1955, Sept. 65A 137.
QUANTOMETERS
Applied Research Laboratories
1955, N o v . 33A 1956, F e b . 55A 138.
RATEMETERS
North American Philips Co., Inc.
1955, Sept. 42A
GOW-MAC CELLS for
139. RECORDERS Applied Physics Corp. 1956, M a y 46A Fisher Scientific Co. 1955, J u l y 30A Perkin-Elmer Corp. 1956, F e b . 28A-29A Varian Associates 1955, Sept. 7A 1956, J a n . 62A, M a r c h 14A Warren Electronics, Inc. 1955, J u l y 39A
141.
REFRIGERATION SYSTEMS
GAS CHROMATOGRAPHY ...FOR OR
TODAY FOR COMPLETE
RELAYS, ELECTRONIC
•
POWER SUPPLY WITH COMPLETE
CIRCUITRY FOR 5 MINUTE HOOK-UP
INFORMA TION AND NEW
SHEETS.
142.
T/C CELLS FOR 2 2 5 ° C OPERATION
TELE
PHONE
DATA
1955, Sept. 59A
• WRITE, WIRE
GOW-MAC
Refrigeration Systems, Inc.
HOT OPERATION!
•
PANEL UNITS—High sensitivity and
high precision panel instrument for gas purity, trace impurities and mixing.
LaPine, Arthur S., a n d Co.
1955, J u l y 14A 143.
SHAKERS
INSTRUMENT GOW-MAC
Burrell Corp.
1955, Oct. 36A Eberbach Corp. 1955, Sept. 12A 1956, J a n . 35A 144.
CO.
100 KINGS ROAD, MADISON, N. J.
Circle No. 43 A 1 on Readers' Service Card, page 63 A
SILICA WARE
Thermal American Fused Co., Inc.
Quartz
1956, M a y 19A, Sept. 69A, N o v . 59A 1966, J a n . 20A, F e b . 14A, M a r c h 33A, A p r . P a r t I I 21A 145.
O-RINGS
SINK TRAPS, POLYETHYLENE
LaPine, Arthur S., a n d Co.
1955, Sept. 15A Nalge Co., Inc. 1956, M a r c h 71A, Apr. P a r t I I 31A 146.
are* valve's best friend
SPECIFIC GRAVITY APPARATUS
Sauter, August, of N e w York, Inc.
1955, M a y 60A, Dec. 26A 1956, Apr. P a r t I I 51A 147. SPECTROGRAPHS Baird Associates, Inc. 1955, Sept. 55A. Oct. 53A 1956, Apr. P a r t I I 10A Bausch & Lomb Optical Co. 1955, J u n e O B C , Oct. O B C 1956, F e b . O B C Fisher Scientific Co. 1956, F e b . I F C Jarrell-Ash Co. 1955, July 43A, Oct. 45Λ 1956, F e b . 49A, Apr. 7SA, P a r t I I 8A North American Philips Co., Inc.
1955, O c t . 35A 1956, F e b . 12A-13A 148.
SPECTROMETERS and Accessories
A p p l i e d Research Laboratories
1956, J u l y 34A, Apr. 42A Axler Associates 1956, Apr. P a r t I I 30A
V O L U M E 28, N O . 4, A P R I L 1 9 5 6
D r i p p y , l e a k y v a l v e s a r e j u s t n o t socially a c c e p t a b l e . . . so, we designed t h e new Hoke bar stock needle valve with an O-ring s t e m seal—to give it t h e right start in l i f e . R e s u l t — a seal t h a t will p a s s a h e l i u m l e a k t e s t . . . no packing a d j u s t m e n t s . . . no friction even at high pressure. Self-aligning spindle shuts off tight. For i n s t r u m e n t p a n e l , t e s t s t a n d , h y d r a u l i c o r p n e u m a t i c s e r v i c e . In c a r b o n , c h r o m e o r s t a i n l e s s steel a n d b r a s s , f o r Va" t o Va" p i p e s i z e s . P a n e l m o u n t e d , t o o , if n e e d e d . W e ' v e got α brand new w a l l chart as well as catalog information—Both yours for the askinq.
HOKE INCORPORATED
HOKE
Fluid C o n t r o l S p e c i a l i s t s 137 S. DEAN STREET. ENGLEWOOD. N. J .
Circle No. 43 A-2 on Readers' Service Card, page 63 A
43 A
