INDEX TO ADVERTISERS Ace Glass, Inc 61 Wm. Ainsworth & Sons, Inc 17 Aloe Scientific, Div. of A. S. Aloe Co 25 American Instrument Co., Inc 27 H. Reeve Angel & Co. Inc 33 Applied Physics Corp 32 Baird Associates—Atomic Instrument Co 24 Baker & Adamson Products, General Chemical Division, Allied Chemical & Dye Corp 7 Bausch and Lomb Optical Co 4th Cover Beckman Instruments, Inc 5 Bethlehem Apparatus Co., Inc 36 Briscoe Mfg. Co 77 Central Scientific Company 18 Coleman Instruments, Inc 15 Commercial Solvents Corp 11 Coors Porcelain Company 71 Corning Glass Works 40:73 Curtiss-Wright Corporation 20:72 Doerr Glass Co 24 Allen B. Du Mont Laboratories, Inc. (Instrument Div.) 75 Eastern Industries, Inc 33 Eastman Kodak Co 55 Farrand Optical Co., Inc 30 Fischer & Porter Co 65 Fisher Scientific Co 2nd Cover : 70 General Electric Company 13 Emil Greiner Co 42 Harshaw Scientific Co 8 Hevi Duty Electric Co 43 Hoke Inc 37 International Equipment Co 52 Kimble Glass Div., Owens-Illinois Glass Co 3rd Cover Klett Mfg. Company 25:71 Labglass, Inc 37 Laboratory Equipment Corp 6 :34 Leeds &. Northrup Company 16 Lindberg Engineering Co 30:09 Lithium Corporation of America, Inc 41 Loomis Engineering & Mfg. Co 10 Macalaster Bicknell Company 22 E. Machlett & Son 12 Matheson Co., Inc 14 Merck & Co., Inc 39 The Mettlor Instrument Corp 29 national Carbon Div., Union Carbide and Carbon Corp 51 New York Laboratory Supply Co.. Inc 79 North American Philips Co., Inc 67 Ohaus Scale Corp 20 Packard Instrument Co 28 Parr Instrument Co 69 Patterson-Kelley Co. Inc 38 Perkin-Elmer Corp 44 :45 Photovolt Corp 56 Process & Instruments 34 Research Specialties Co 71 Ε. Η. Sargent & Co 31:47 August Sauter of New York, Inc 59 Carl Schleicher & Schuell Co 76 Ε. Η. Sheldon Equipment Co 21 Ivan Sorvall. Inc 14 Spinco Division, Beckman Instruments, Inc 48 Arthur H. Thomas Co 46: 64 Tracerlab 50 Union Carbide and Carbon Corp., National Carbon Div 51 United Carbon Products Co. inc 3o U. S. Stoneware Co 68 Varian Associates 23 W. M. Welch Scientific Co 43 :62 Wilkens-Anderson Co 4 Will Corporation and Subsidiaries 20 Carl Zeiss, Inc 37
NYLAB SCIENTIFIC INSTRUMENTS and APPARATUS
For SPEEDY, PRECISE WEIGHING . . . N O LOSS IN TRANSFERS— Place material to be weighed in covered-front and/or open-rear sections. Complete transfers easy—rinse material directly through funnel t i p into receiver. Stable, flat base . . . lightweight. Catalog N o .
Diam. ( m m )
Length ( m m )
Pticc, dozen
12803 12804 12805
15 25 38
40 65 100
9.00 10.50 13.50
Ordes must be in lots of dozen of one size. 10 % discount on orders of 6 dozen oj same or assorted sizes.
Polyethylene Wash Bottle Delivers a D R O P or a S T R E A M Does away w i t h break age . . . mouthpieces . . . rubber bulbs. Withstands flexing indefi nitely. Durable and convenient. Smaller sizes used w i t h short, straight discharge rube are perfecr for washing of glass electrodes.
15721 60 1.20
Filter Bell (with redesigned SLIDE
REINHOLD PUBLISHING CORPORATION Advertising Management for the American Chemical Society Publications Merald Lue, Advertising Sales Manager, ACS Publications 430 Park Avenue, New York 22, Ν. Υ. Cable Address: REINPUB NYK SALES REPRESENTATIVES David B. Hoopes Advertising Sales Manager New York 22-MUrrayhill 8-8600; David B. Hoopes; District Managers—E. Lee Muller; Thomas N. J. Koerwer Cleveland 14-NBC Bldg., 815 Superior Ave., N.E., PRospect 1-5583; Rodney D. Long, Cleveland. Manager, Reinhold Pub lishing Corp. Chicago 2 - 1 1 1 W. Washington St., RAndolph 6-8497; District Manager—Fritz Lee; District Manager, Southern States (Ala., Ga., Fla., Ky., Miss., Tenn.) H. Scott Leonard San Francisco 5—McDonald-Thompson, 625 Market St., YUkon 6-0647; Roy M. McDonald Los Angeles 5—McDonald-Thompson, 3727 West Sixth St., Dunkirk 7-5391; Ε. Τ. Thompson Seattle 4—McDonald-Thompson, National Bldg., 1008 Western Ave., ELliott 3767; Harry Abney Houston 6—McDonald-Thompson, 3217 Montrose Blvd., JAckson 9-6711; Frank N. Vickrey Denver 2—McDonald-Thompson, Colorado National Bank Bldg., KEystone 4-4669; Robert H. Heidersbach Dallas 6-McDonald-Thompson, 5526 Dyer St., FOrest 8-5510; Ed J. Whetzle Tulsa 4-McDonald-Thompson, 2010 S. Utica, Riverside 3-1981; Ted R. Trautmann
VOLUME
2 8, N O . 12, D E C E M B E R
1956
15724 500 1.85
VALVE)
FOR NEW CONVENIENCE IN FILTRATIONS
78
Arapahoe Special Products, Inc. Clark Microanalytical Laboratory Johns-Manville Corp. LaMotte Chemical Products Company Macalaster Bicknell Company Microchemical Specialties Company Wisconsin Alumni Research Foundation
15723 250 1.60
Discount of 10 °/r> on orders 0 dozen or more.
DIRECTORY Laboratory Supply Center
15722 125 1.30
Vacuum-tight closure as sured by soft rubber gasket acting against a glass bottom place . . . Any type funnel receiving vessel may be used . . . Redesigned Slide Valve permits applica tion or release of a vacuum in t h e bell jar while retaining t h e vacuum in other parts of t h e filtration system. Minimum Inside Dimensions: Diam. 90 MM; Ht at side 120 MM; H t at center 150 MM. Catalog N o . 35070 10.75 ea. Write for NYLABS' complete Cat. No. 7 on company letterhead.
KEY TO ALL \ ~ ! LABORATORY SUPPLIES .
NEW YORK Laboratory Supply CQ-Μ,ΡΑΝΥ
INC.
76 Varick Street, N e w York 13, Ν. Υ. Telephone: CAnal 6-6504 Circle No. 79 A on Readers' Service Card, page 63 A
79 A
