SOME INTERESTING EGG MONSTROSITIES. 



CHARLES W. HARGITT. 



Under the caption " Ein Ei im Ei " there appeared in the 

 .Zoologischer Anseiger of Aug. 17, 1896, an interesting account 

 by Vom Seigm. Schumacher of a small egg of the fowl enclosed 

 ■within a larger. This report has recalled my attention to ob- 

 servations made by myself some years ago and reported to the 

 Indiana Academy of Science, but which were never published 

 except by title. Similar cases of somewhat similar character 

 which have since come to my knowledge, and their somewhat 

 unusual and abnormal phenomena, lead me to submit the fol- 

 lowing statement of facts which in their way may not be with- 

 out a measure of interest. 



The first case which came under my observation was an Qgg 



of very large dimensions, almost three inches long by about 



two inches in short diameter, brought into my laboratory by a 



.'Student. It was a double egg in a rather unusual sense. The 



Fig. I. 



outer one was of the dimensions indicated, while the inner was 

 of about normal size and form, and of perfectly normal structure. 

 That is, it was composed of yolk, albumen, chalaza, shell-mem- 

 brane, and shell. The outer was similar, except that it was 

 wholly devoid of yolk. There was the usual proportion of 

 albumen of the usual consistency, a shell-membrane, and a per- 

 fectly formed shell of the usual density. Fig. i presents a 

 .sectional view of the Qgg. 



