. McClure's magazine. HunSHORNS SELF-ACTING .SHADE ROLLERS/Beware ol Imitation*.NOTICEJMJTOCRAPH,/?/ JWr-XtkBBi. *THE CENUiWE See that Stew-art Hartshornsautograph is onthe label. Jl. Ordinary Filtersare Dangerous. Professor Lucius Pitkins, Ph. D., Analytical Chemist of New York, says:A filter is essentially a sieve, and the organisms which it must stop intheir passage are, to put an average figure, but one twenty-five thousandthof an inch in diameter. Filters Packed with sponge, charcoal and gravelcatch only the coarser particles of floating matter, and are no better than aflannel bag tied to
. McClure's magazine. HunSHORNS SELF-ACTING .SHADE ROLLERS/Beware ol Imitation*.NOTICEJMJTOCRAPH,/?/ JWr-XtkBBi. *THE CENUiWE See that Stew-art Hartshornsautograph is onthe label. Jl. Ordinary Filtersare Dangerous. Professor Lucius Pitkins, Ph. D., Analytical Chemist of New York, says:A filter is essentially a sieve, and the organisms which it must stop intheir passage are, to put an average figure, but one twenty-five thousandthof an inch in diameter. Filters Packed with sponge, charcoal and gravelcatch only the coarser particles of floating matter, and are no better than aflannel bag tied to a faucet. These filters pollute the water if not keptscrupulously clean; the impurities collected decompose and become moredangerous than in their original state. a. fl_ ._ The GERMPROOF
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Keywords: ., bookcentury1800, bookdecade1890, bookidmccluresmaga, bookyear1893
