36 



Dr. S, M. Copeman and Mr. F. Gr. Parsons. [Dec. 1, 



remains, how many young have been eaten. The record of these litters, 

 with the proportions of the surviving young, are as follows : — 



Number. 



Doe. 



Number m 

 litter. 







Sur v i"vir* ^ 

 males. 

 



KJ LiX V 1 V LLXtL 



f emales. 

 



Eaten. 





, 



4 



4 





_ 



2 



55 



7 



4 



3 





3 



55 



4 



4 







4 



B 



7 



4 



3 





5 



" 



5 



4 



\ 





Q 





5 



3 



2 





7 



" 



5 



2 



3 





g 



55 



6 



2 



4 





9 





5 



2 



2 



1 



10 



55 



Q 

 O 



3 







11 



j) 



4 





3 





12 



5) 





3 



2 





13 



55 





4 



4 





14 



55 



8 



4 



4 





15 





/ 



7 







l « 





Q 

 O 



4 



4 





T7 



J: 



9 



3 





5 



1 8 



" 



7 



4 



3 





1 Q 



55 



7 

 < 



4 



3 





9A 



55 



B 1 



q 



1 



Q 



2 



21 



7 



2 



3 



2 



22 



B 2 





2 



1 



3 



913 



55 



8 



4 



2 



2 



24 



55 



3 



2 



1 





9^ 



55 



1 A 



J-U 



4 



4 



2 



26 



ft 3 



8 



2 



5 



1 



27 



55 



9 



4 



5 





98 



55 



7 



2 



3 



2 



9Q 



f! 1 



7 



3 



2 



2 



3A 





7 



1 



6 





31 



55 



9 



2 



7 





32 



'5 > 



7 



3 



2 





33 



f! 2 



2 



1 



1 







55 

 " 



q 



5 





3 



3^ 



a 

 o 



2 



4 





Oft 



55 



7 



3 



3 





3*7 





D 



3 



3 







55 



7)1 



q 





3 







7 



2 



5 





/i A 



" 



17 

 t 



3 



A 





A "I 



55 



Q 



o 



K 



o 



Q 

 O 





A.9 



55 



7 



5 



2 





AH 



55 



o 

 o 



4 



4 





44 



1)2 



5 



1 



4 





45 



v)5 



8 



4 



4 





46 



55 



11 



4 



3 



4 



47 



55 



9 



3 



3 



3 





L> 3 



6 



3 



3 





49 



55 



5 



1 



4 





50 



JJ 



8 



3 



5 





51 



B 21 



8 



2 



3 



3 



52 



55 



4 



1 



2 



1 





55 



9 



6 



3 





54 





5 



3 



2 





