"Hard water" Quotes from Famous Books
 ... and that one could never have appendicitis if such seeds were not swallowed. This theory is to-day almost forgotten, and one eminent surgeon has asserted that the prevalence of this disease in a district depends on the calcium in the soil, since it is to that mineral that hard water is due, although this has not been substantiated. No information is to-day available by which the fitness of a soil for securing sanitary conditions of building ...
— Rural Hygiene • Henry N. Ogden |
