A GOOD WAY TO TEST EGGS.
A new and simple method for testing eggs is published in German papers. Tt is based upon the fact that the air chamber in the flat end of the egg increases with age. If the egg is placed in a saturated solution of common salt it will show an inreasing inclination to float with the long axis vertical. A scale is attached to the vessel containing the salt solution so that the inclination of the floating egg toward the horizontal can be meaiured In this way the age of the egg can be determined almost to a day. A fresh egg lies in a horizontal position at the bottom of the vessel ; an egg from three to five days old shows an elevation of the flat end ( so that its long axis forms an angle of 20deg. With an egg eight days old the angle increases to 45deg ; with an egg fourteen days old to 60deg; and with one three weeks old to 75deg ; while an egg a month old floats vertically upon, the pointed end.
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https://paperspast.natlib.govt.nz/newspapers/EP19041126.2.91
Bibliographic details
Evening Post, Volume LXVIII, Issue 128, 26 November 1904, Page 13
Word Count
182A GOOD WAY TO TEST EGGS. Evening Post, Volume LXVIII, Issue 128, 26 November 1904, Page 13
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