Home exercise.—How to ventilate my bedroom.
Demonstration.—Effect of use of duster and damp cloth upon bacteria in schoolroom.
Home exercise.—Luncheon dietaries.
Home exercise.—Sanitary map of my own block.
Demonstration.—The bacterial content of milk of various grades and from different sources.
Demonstration.—Bacterial content of distilled water, rain water, tap water, dilute sewage.
Laboratory exercise.—Study of board of health tables to plot curves of mortality from certain diseases during certain times of year.
The Purpose of this Chapter.—In the preceding chapters we have traced the lives of both plants and animals within their own environment. We have seen that man, as well as plants and other animals, needs a favorable environment in order to live in comfort and health. It will be the purpose of the following pages first to show how we as individuals may better our home environment, and secondly, to see how we may aid the civic authorities in the betterment of conditions in the city in which we live.
How I should ventilate my bedroom.