. The Bell System technical journal . nement and extensionof analytical technique might be accomplished to fulfill the specialneeds of both science and industry. An outstanding result has beenthe development in the analyst of a new mental attitude. He seeksto attain his goal first by reducing the scale of operations to a degreeconsistent with the small quantities of material frequently handled; 488 BELL SYSTEM TECHNICAL JOURNAL second, by augmenting his ability to make observations through theuse of adequate instruments; and third, by employing specific andhighly sensitive reactions as well as
. The Bell System technical journal . nement and extensionof analytical technique might be accomplished to fulfill the specialneeds of both science and industry. An outstanding result has beenthe development in the analyst of a new mental attitude. He seeksto attain his goal first by reducing the scale of operations to a degreeconsistent with the small quantities of material frequently handled; 488 BELL SYSTEM TECHNICAL JOURNAL second, by augmenting his ability to make observations through theuse of adequate instruments; and third, by employing specific andhighly sensitive reactions as well as conversion products of highmolecular weight. Micromethods serve the obvious purpose of analyzing minuteamounts of material, thereby providing information otherwise unob-tainable. Actual experience at Bell Laboratories, however, has shownthat the reduction in magnitude of operations frequently permitsanalyses to be carried out with greater rapidity and more certainresults even when the quantity of sample available is not a considera-. Jig. 2—General view of hood in the microanahtical laboratory, giving some idea ofthe relative size of glassware and other equipment used. tion. The construction of apparatus, when more intricate set-ups arenecessary, is far easier and more economical on a small scale and thebreakage is less. Reactions run their courses more quickly and aremore easily controlled. Reagents may be used whose costliness wouldbe prohibitive on a larger scale. These advantages, added to thecapacity to make minute observations, provide a technique of greatflexibility, a fact repeatedly demonstrated by successful applicationsto problems arising in the design, manufacture and maintenance oftelephone equipment. In microqualitative examinations, an effort is usually made tobring the unknown material into solution in a volume not exceeding a ANALYSIS IN COMMUNICATION RESEARCH 489 few tenths of a cul)ic centimeter. Idcntificatifjn reactions are thencarried out in sint^Ie sma
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
