DWARF EGGS OF DOMESTIC FOWL. 



313 



the cases where a normal bird produced a dwarf egg the bird 

 completed the clutch to which the dwarf egg belonged. Table 

 8 gives for every size of clutch the frequency distribution of 

 clutch position of dwarf eggs. 



Table 8. 



Showing for Each Sise of Clutch in zvhich a Dwarf Egg was 

 Produced the Frequency Distribution of Clutch Position of 

 Dwarf Eggs. 





Ordinal Number op the Eog in the Clutch. 



Number of Eggs in 

 the Clutch. 



tj 





*6 



CO 





in 



A 



t^ 



A 



00 



A 







I 



A 



■a 



CO 

 rH 



A 



A 

 10 



'a 

 

 H 



1 



50 



26 

 10 

 5 

 2 

 

 1 

 

 1 

 

 



95 



20 

 19 

 5 

 4 

 2 

 1 

 

 

 

 



51 



13 

 7 

 3 

 2 

 

 

 

 1 

 



26 



7 





 

 











10 



5 

 1 

 1 

 1 

 

 

 



8 





 3 

 

 

 

 



3 



1 





 2 

 

 

 



2 





 

 

 



0. 





 

 



6 





 1 



1 





 









 





 





 



1 



1 



50 



2 



46 



3 



42 



4 



94 



5 



16 



6 



fl 



7 



6 



8 



3 



9 



2 



11 



1 



15 



?, 



Total 



197 







This table shows that 50 dwarf eggs occurred as one egg 

 clutches. That is, no egg was produced on either the preced- 

 ing or following day. Forty-six occurred in two egg clutches, 

 the other egg being in each case a normal egg. Of these, 

 twenty-six were the first and twenty the second of the two 

 eggs. Similarly through the table we may compare the num- 

 ber of eggs produced in the successive positions in a clutch of 

 any given size. The clutches in which dwarf eggs occurred vary 

 in size from one to fifteen eggs. A study of this table shows no 

 apparent uniform tendency for a dwarf egg to occur in any 

 particular position in a clutch. 



In order to summarize the data for the various sized clutches 

 it is necessary to standardize the clutch. A clutch may be 

 conceived as a line of definite length. This line may be divided 

 into as many segments as there are eggs in the clutch. Each 

 segment may be assigned a value, equal to the fraction which 



