Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 690
benefit ofJ\ our older readersand those ofthe young folkswho have afondness formathematics. Let T = the temperature in degrees(Fahrenheit) of the thermometer; JV =number of chirps per minute. ThenTV-40 THE WINGS OF THE CRICKET. He makes the chirping byrubbing one of these rough wingson the other.…
Children's literature
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