settling, and retains allits aroma. The also discussing the best form of using and manner of apply- inventions designed to approach that ultimatum of perfection advantage of this over the ordinary filter is its economy, as ing these tests, says: “In testing for minute portions of the in car brakes… … the bichromate of po. so that it is really self- FOSTER’S IMPROVED CAR BRAKE. tassa and sulphuric acid acting, each car being the learner. acted upon alike, thus obviating the unpleasant jamming ment that any one should be so wasteful as to send away the at 1-600,000¢h, and that of the permanganate…
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