BIOLOGICAL BULLETIN, VOL. XXIV 



CURVE 3 



30 



25 



20 



IS 



10 



}) 2 3 4 S 67 8 O 10 II 12 13 14 IS 16 C 18 19 20 21 22 • 24 25 26 27 28 29 30 31 

 July 3 6 9 12 15 18 21 24 27 30 Aug. 2 



}) 2 3 4 5 67 

 Aug. 147 



O 10 II 12 13 14 IS 16 ([ iS 19 20 21 22 • 24 25 26 27 28 29 30 31 

 10 13 16 19 22 25 28 31 



LILLIE AND JUST 



