322 



Aaron Franklin Shiill 



TABLE III 



Showing iiumhc of male- and female-p'oducers in a series of 5§ generations of Hydatina senta 

 which wee well fed, and a se'ies of 54 generations which wee starved. 



Well-fed 



Starved. 



no. of ' date of 

 genera- first 

 tiox young 



NO. OF 



c?9 



Q9 



PER I NO. OF 



CENT OF GENERA- 

 TION 



c?? 



DATE OF 

 FIRST 

 VOUN& 



NO. OF 



NO. OF 



?9 



PER 

 CENT OF 



d-9 



23- 

 24. 



26 



28. 

 29. 



33- 



July 



Aug. 



Sept. 



41 



30 



33 

 ^3 



17 

 26 

 28 

 30 



17 



8 

 48 

 19 

 5^ 

 35 

 40 

 42 

 36 

 37 

 39 

 50 

 45 

 44 

 41 

 44 



7 



35 

 25 

 3i 



28 ] 

 30 } 

 40 I 

 ■9l 



37 

 41 

 33 

 44 



635 



14.9 



1-3 



7-2 



4-9 



25.6 



59-8 



9.8 



23 

 24 



25 

 26 



27 

 28 

 29 

 30 

 31 

 32 

 33 

 34 



'July 



lAug. 



;Sept. 



19 



o* 



60.5 



53-6 



29.8 



26.5 



25.0 



30. 



16.0 



33-3 



*Pemainder of family not recorded. 



