Hygiene

The title page calls the book a manual of personal and public health by Arthur Newsholme. The text says the amount of water falling on any impervious material obtainable from rain can easily be estimated, if the amount of rainfall and the area of the receiving surface are known.

An estimate says that, even if a rain-water supply for towns were desirable, the amount collected from the roofs of houses would scarcely average two gallons per person daily, assuming the average rainfall to be 20 inches and a roof area of 60 square feet for each individual. The book says that a continental climate is drier and more subject to extreme alternations of temperature than insular and oceanic climates. The text points out that New York has the same mean temperature as London. On food, the text says the greater convenience of animal food as a supply of proteid is shown by examples of foods after the removal of water, while vegetable foods are a cheaper source, not only of carbohydrates and fats, but also of proteids as well.