tricate sand figures showing the tudinally a rod of aluminum. The rod was grasped at nodes and venters. The plate was explored with a re- the middle by one hand while it was rubbed length- sonator which re-enforced the sound at the venters, wise by a glove charged with resin and worn upon the while… … investigations are completed, to publish the results. and readily operated to clean the tubes of scale, sedi- Su AWA, ‘ ment, or any obstructions, being especially adapted for ——__—_—_—_—__+ e+e _____—_ Tannin in Tea. cleaning the tubes of the Babcock & Wilcox and _ simi- Fig. 1. “Some examples…
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