UNITED STATER DEPARTMENT OF AGRICULTURE 

 BULLETIN No. 565 



Contribution from the Bureau of Chemistry 

 CARL L. ALSBERG, Chief 



Washington, D. C. 



May 11, 1918 



HOW TO CANDLE EGGS 



By 



Mo E. PENNINGTON, Chief, Food Research Laboratory 



M. K. JENKINS, Assistant Bacteriologist 



and H. M. P. BETTS, Artist 



CONTENTS 



Page 



Introduction 1 



Grading of Eggs 2 



The Egg Candle 2 



The Structure of the Egg 3 



Page 



How to Hold an Egg When Candling . . 5 



What to Look for in Candling an Egg . . 6 



Classified Description of Eggs Before the 



Candle and Out of the Shell 12 



WASHINGTON 



GOVERNMENT PRINTING OFFICE 



1918 



