Relaxation Rewind! Bad Drains and How to Test Them, Part 1
Boring Books for Bedtime Readings to Help You Sleep
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Bad Drains and How to Test Them
The system described in these pages may appear new, but it was discovered and used by me in 1880. From that time up to the present, it has proved of considerable value in determining any defect in the construction of drains and fittings. With the detector and animometer, I have been enabled to discover the cause of so many failures in sewer ventilation and to trace the origin and transmission of many cases of cymodic disease. The object of this work is to place the same knowledge in the hands of every person connected with sanitary work.
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