SAFETY IN HOUSE-DRAINAGE.
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generally regard all improved methods developed by the application of scientific principles as dangerous innovations, interfering with the ancient and time-honored traditions of their unprogressive fraternity.
There is another and a stronger obstacle to scientific progress in
Fig. 2.—The Same Fixtures with the Proper Arrangement of Waste-Pipes.
sanitary matters. This is to be found in the powerful influence of capital. In our large cities are the extensive wholesale establishments of dealers in plumbing fixtures and supplies. The amount of money invested in the stock and patterns for manufacturing certain forms of plumbing appliances is enormous. These articles are, many of them, extremely unsanitary and even danger-
