HOW TO CANDLE EGGS. 



19 



EGG WITH HEAVILY STUCK YOLK. 1 



tEFORE THE CANDLE. OUT OF THE SHELL. 



White and yolk: More or less mixed 

 together ; a large portion of the yolk 

 remains attached to the shell. 



Distinguishing characteristic: 

 Heavily adherent yolk. 



Air space: Enlarged; lower wall may 



be movable in outline. 

 White: Very thin. 

 Yolk: Stuck to the shell by a large 



area of the yolk sac and does not 



wave when the egg is turned ; the 



color at point of contact is very 



much darkened. 

 Distinguishing characteristics: 



Firm attachment of yolk to shell 



and dark color at place of contact. 



Inedible. 



Occurrence: Throughout the year among eggs held in damp surroundings 



EGG WITH HEAVILY MOTTLED YOLK. 



r.EFOKE THE CANDLE. 



OUT OF THE SHELL. 



White: Usually weak. 



Yolk: Streaked with different shades 



of yellow ; sometimes watery areas 



are present. 



Air space: Small or enlarged. 



White: Usually weak. 



Yolk: Bears dark mottled areas and 



is frequently weak. 

 Distinguishing characteristic: 



Dark mottled areas on yolk. 



Inedible. 



Occurrence: Chiefly among summer eggs and eggs held at low temperatures. 



MUSTY EGG. 



OUT OF THE SHELL. 



White: Fresh, stale, or deteriorated. 

 Yolk: Stale or deteriorated. 



Distinguishing characteristic : Musty odor. 



Inedible. 



Occurrence: Among eggs held in damp surroundings. 



SOUR EGG. 



OUT OF THE SHELL. 



White: Thin, and is frequently cloudy. 

 Yolk: Weak and often broken. 



Distinguishing characteristic: Sour odor. 

 Inedible. 

 Occurrence: During entire year. 



EGG WITH GREEN WHITE. 

 OUT OF THE SHELL. 



White: Clear and distinctly green in color. 

 Yolk: Flattened and sometimes very weak. 

 Odor: May or may not be pleasant. 



Distinguishing characteristic : Green white. 



Inedible. 



Occurrence: Throughout the entire year, but chiefly in spring among dirty, 

 washed, and cracked eggs, when the weather is damp. 



1 Illustrated in color in U. S. Dept. Agr. Bui. 224, PI. XV. 



