| nical atomizer, which we represent on the title page of his mode for preserving fence posts. In answer it may be | with great favor by practical navigators. Those parts of such |the current issue. It is the invention of Mr. Henry A. Duc, stated that no singleexperiment, or nosingleseries of… … none above. The petroleum will pene- VERTICAL SECTION OF DUC’S MECHANICAL ATOMIZER. long-felt want. trate the pores, and the tar coating : It is purely an ‘‘attrition mill,” that will hold it there. The following is Mr. Earle’s state-|41b., will, when made of the above alloy, only weigh 1 Ib. | is,…
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