81 |
|
Determination of Organic Halogen /
|
Kimball, R. H
|
American Chemical Society
|
1938
|
|
|
82 |
|
Reciprocating Laboratory Shaker /
|
Schwarz, E. R
|
American Chemical Society
|
1938
|
|
|
83 |
|
Improved Mercury U-Gage /
|
Zimmerli, A
|
American Chemical Society
|
1938
|
|
|
84 |
|
Automatic Cooling Device for Thyratron-controlled Thermostats /
|
Garrett, Alfred B
|
American Chemical Society
|
1938
|
|
|
85 |
|
Fractionating Device for vacuum distillations /
|
Noonan, Evan
|
American Chemical Society
|
1938
|
|
|
86 |
|
Symbol Dz to Signify Dithizone /
|
Hibbard, P. L
|
American Chemical Society
|
1938
|
|
|
87 |
|
Accurate Determination of Dew Point /
|
Hixson, Arthur W
|
American Chemical Society
|
1938
|
|
|
88 |
|
Microrefractometer of simple Design /
|
Edwards, A. E
|
American Chemical Society
|
1938
|
|
|
89 |
|
Photometric Determination of Vanillin in Vanilla Extracts /
|
Daniels, T. C
|
American Chemical Society
|
1938
|
|
|
90 |
|
Determination of Rotenone in Derris and Cube. Ⅱ. Extraction from the root /
|
Jones, Howard A
|
American Chemical Society
|
1938
|
|
|