onds indicated on the dial when the PREVENTER. sound of the bell is first heard. The computation is Attached to the facilitated by the use of a table, in which, if necessary, wall at the cor- allowance may be made for the fraction of a second ner of a narrow consumed in the operation of the… … has devised a simple measuring device for a fiat spatula, produce a uniform mixture. In mixing, great care must be taken that no air readily matching samples brought in by custom- FLAYING WITH EIRE. bubbles occur in the mass, for these would ers. A tapering needle, which is pushed into give rise to…
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