ADVERTISED PRODUCTS GUIDE Arthur S. LaPine & Co. Feb. 21A National Appliance Co. May 86A, July 54A, Sept. 112A, Nov. 90A, Jan. 68A New York Laboratory Supply Co. Mar. 75A Precision Scientific Co. Mar. 33A Scientific Glass Apparatus Co. Nov. 37A, Jan. 23A
788.
Hot Plates, Magnetic Stirring Thermo Electric Mfg. Co. Deo. 79A, Jan. 50A, Feb. 88A Wilkens-Anderson Co. May 53A, Sept. 75A, Jan. 47A, Apr. I I 33A Will Corp. Jan. 32A Yonkers Laboratory Supply Co. Oct. 43A 789. Kiln Furniture, Zirconia Laboratory Equipment Corp. June 85A, Jan. 80A 790. Kiln, Rotary, Direct Fired C. O. Bartlett & Snow Co. Apr. I 88A, M a y 24A, Sept. 80A, Oct. 26A, Nov. 81A 797. Muffles, Silica Thermal American Fused Quartz Co. Jan. 85A, Mar. 42A 792. Ovens Ace Glass, Inc. Nov. 42A Central Scientific Co. Apr. I 20A Despatch Oven Co. May 73A, Nov. 86A, Feb. 88A Harry W. Dietert Co. June 72A, Sept. 40A, Dec. 38A Fisher Scientific Co. July 50A, Sept. 76A, Apr. II 69A
793. Ovens, Vacuum H. Reeve Angel & Co. Feb. 25A Brinkmann Instruments Feb. 31A National Appliance Co. May 86A, July 54A, Jan. 68A, Mar. 79A Schaar & Co. M a y 59A, Nov. 59A
Heat Measuring and Control Equipment 794.
Bombs, Sodium Peroxide Parr Instrument Co. Sept. 60A 795. Calorimeters Klett Mfg. Co. Apr. I 89A, May 76A, June 55A, July 83A,~ Aug. 82A, Sept. 54A, Oct. 39A, Nov. 58A, Dec. 50A, Jan. 81A, Feb. 80A, Mar. 80, Apr. II 43A
Setting the pace since 1949 in Small-Scale Apparatus— METROWARE
New York Laboratory Supply Co. Mar. 75A Parr Instrument Co. June 55A, Feb. 102A Precision Scientific Co. Mar. 33A 796.
Sulfur Apparatus, Oxygen Bomb Parr Instrument Co. July 68A, Jan. 84A 797.
Thermal Conductivity Cells, Plant Stream Gow-Mac Instrument Co. Nov. 97A, Dec. 97A, Jan. 84A, Mar. 91A, Apr. II 63A
Hydrogen ion Apparatus 798.
Buffers and Accessories, pH Meter Beckman, Scientific Instruments Div. Aug. 84A, Oct. 3A, Jan. 31A 799. Cathodes, Mercury Eberbach Corp. May43A, Feb. 102A 200. Electrodes, Platinum J. Bishop & Co. Platinum Works Sept. 52A, Jan. 83A
207.
Electrode Assemblies Dropping Mercury Leeds & Northrup Co. Sept. 34A 202.
Electrode Conversion Assemblies Arthur H. Thomas Co. Aug. 56A 203.
Electrolytic Conductivity Indicators Industrial Instruments, Inc. Oct. 81A 204.
Falling Drop Apparatus Polarad Electronics, Inc. Sept. 110A, Jan. 40A, Apr. II 12A 205. pH Meters Analytical Measurements, Inc. Feb. 59A Beckman Scientific Instruments Div. Apr. I 65A, Aug. 84A Cambridge Instrument Co. May 66A, July 87A, Nov. 92A, Jan. 78A Chicago Apparatus Co. M a y 87A, July 83A Coleman Instruments, Inc. Sept. 100A Fisher Scientific Co. Apr. II 69A Harshaw Scientific Apr. I 16A, May 3C, Oct. 20A, Feb. 16A
Direct Measurement of Difference in Refractive Index
OVER 300 DIFFERENT INTERCHANGEABLE UNITS FOR EVERY TYPE OF ORGANIC ANALYSES: DRYING AND STORING FRACTIONATING DISTILLATION FILTRATION REFLUXING SUBLIMATION CONCENTRATION EXTRACTION LIQUIDS AND SOLIDS
The New Brice-Phoenix Differential Refractometer uses a split cell to
ME499 Kit
measure the difference in refractive index between a dilute solution and its solvent. Limiting sensitivity 3X1
Metro
Industries FOR
1 1 - 3 8 31st AVE. L. I. CITY 6, N.Y.
RESEARCH EQUIPMENT — CHEMICALS — REAGENTS Circle N · . 4i A-1 on Readers' Service Gard, page G7 A
46 A
·
ANALYTICAL CHEMISTRY
Q~^.
P H O E N I X PRECISION INSTRUMENT C O . 3 8 0 5 N. 5th St.
Phila. 4 0 , Pa.
Circle No. 46 A-2 on Readers' Service Card, page 67 A
