BIOLOGICAL BULLETIN, VOL. XXIV 



CURVE V 



523 4 56 7 O 9 10 ii 12 13 14 15 C 17 18 19 20 21 22 24 25 26 27 28 29 3 31 

 July 21 24 27 30 Aug. 25 8 II 14 17 20 



2 



20 



IO 



j 23 4 5 6 7 8 O 10 ii 12 13 14 15 16 

 June 36 9 12 15 18 



18 19 20 21 22 23 

 21 24 



25 26 27 28 29 30 31 

 27 30 July 3. 



LILLIE AND JUST 



