Primary Object Lessons, for a Graduated Course of Development
The book Primary Object Lessons, for a Graduated Course of Development was written by author Calkins, N[orman] A[llison], 1822-1895. [from Old Catalog] Here you can read free online of Primary Object Lessons, for a Graduated Course of Development book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Primary Object Lessons, for a Graduated Course of Development a good or bad book?
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But they seldom do. THE EARS AND THE SENSE OF HEARING. 213 God has taken care to prevent this annoyance. There is in the ear a sticky substance that we call wax, which is so bitter and unpleasant that insects avoid it. Besides, the wax would stick his legs so that he could not crawl far, nor make a noise with his wings. Hearing. — But I want you to tell me something about the shape of ears. "They are hollow on the side of the opening which leads to the ear-drum. ^^ This is the best shape for co...llecting the sound and bringing it to the passage of the ear. Did you ever see a rabbit when the dogs were chasing it? What was the direction of its ears? "They turned backward." This was to enable it to collect the sounds that came from its pursuer. Ani- mals that are pursued by others have their ears stand- ing backward, that they may hear what is coming from behind. Now look at the ears of the cat, and tell me how they stand. " The ears of the cat point forward." This is so that she may readily catch the sound of the game for which she is in pursuit.
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