Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 751
KS [Mar., TELLING THE AGE OF EGGSA VERY clever plan of finding out how old an eggis has recently been discovered. After many se-vere tests the method has been declared to beabsolutely reliable; indeed, by this means it ispossible to find out the time which has elapsedsince the laying of the egg… … NO. I. THE EGG-TESTING DEVICE. increases in size, owing to the fact that the mois-ture from the egg evaporates through the poresof the shell. Thus, day by day, the egg losesdensity, and it is possible to discover its age byspecific gravity. First of all, a solution of saltand water is prepared, one…
Children's literature
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