per piece flared slightly at top and bottom, The top of the cylin- whether the obstruction was due to sponge growth. Mr. is removed.) Projecting upward from the top of the Jower der is provided with a series of apertures arranged in a circle. Potts announced that he could find no sponge growth in… … is forced out through the This invention has been across in some newspaper, quite the best: Brush the dust apertures into the cap, the valve being raised by the pressure. patented by Mr. A. W. Benson, of San Bernardino, Cal. off with a piece of chamois, then apply with a brush a good When the…
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