WINDOW-PANE OYSTEK. 



241 



Appendix 7. — Measurements of First-year Old Oysters, 

 September, 1912. 



(See also Plate 8.) 



Appendix 8. 



Size (Hinge 



Diameter). 



Inches. 



4 



H 



*2 



4| 

 4| 



^ 



Measurements of Second-year Oysters, January, 1912. 

 (See also Plate 9.) 



No. of 

 Specimens. 



24 



Size (Hinge 



Diameter). 



Inches. 



'1 j^ 



Total specimens 



No. of 

 Specimens. 



4 

 2 

 I 



63 



Appendix 9. — Measurements of Second-year Oysters, June, 1912. 



Size (Hinge 



Diameter). 



Inches. 



4i 



H 

 4f 



*4 



4^ 



(See also Plate 9.) 



No. of 

 Specimens. 



3 



5 



3 



4 

 10 



7 

 12 



Size (Hinge 



Diameter). 



Inches. 



5i 

 5i 

 5| 

 5J 



Total specimens. 



No. of 

 Specimens. 



3 



7 



56 



