Cheese is made out of milk by one of the good kind; another kind makes vinegar; some other kinds fasten themselves to the inside of our mouths and bodies, bringing disease, like typhoid fever and consumption.

When we keep our bodies and mouths and teeth clean, we help our blood to destroy such bad bacteria.

Sunlight destroys bad germs.

Fresh air destroys bad germs. You should have plenty of fresh air both day and night.

“Pshaw,” said Jack, as Bet finished speaking; “toad stools are meant for fairies to sit on, and mushrooms for human beings to eat. What kind of nonsense are you trying to teach, anyhow, Bet?”

The girls laughed, for they saw Jack wink as he spoke.

“Come,” said he, “you’ve been standing too long—come, have a seat on a toad stool?”

With that he ran toward a beautiful white mushroom, and Bet followed.

When they were seated, Mary Frances asked: