232 



University of California Publications in Zoology [Vol. 22 



Actinastrum 



1913 hantzschii 



5/17 



5/24 1,600 



5/31 



6/ 7 



6/16 6,400 



6/21 158,688 



6/28 185,136 



7/ 5 9,600 



7/12 52,896 



7/19 



7/26 19,200 



8/ 2 6,400 



8/ 9 



8/15 



8/23 105,792 



8/31 



9/ 6 634,752 



9/13 



9/20 105,792 



9/27 



10/ 4 423,168 



10/11 



10/18 



10/26 6,400 



11/1 



11/ 8 6,400 



11/15 1,600 



11/22 3,200 



11/30 3,200 



12/ 6 



12/14 



12/20 



12/27 



Pediastrum 



1913 simplex 



1/H 



1/19 



1/25 



2/ 2 



2/ 8 3,200 



2/15 1,600 



2/23 



3/ 1 6,400 



3/ 8 3,200 



3/15 3,200 



3/23 52,896 



3/29 1,600 



4/ 5 1,600 



4/13 



4/19 



4/26 52,896 



5/ 3 .... 



5/10 1,600 



5/17 



5/24 3,200 



5/31 



6/ 7 



6/16 



6/21 3,200 



3. — Organisms Per Cubic 

 Smith's Canal in 1913 



Actinastrum 



hantzschii Coelastrum 



(large) microporum 



i^6o6 !ZZ"!Z 



3,200 



1,600 



79,344 



79,344 



528,960 



423,168 3,200 



264,480 



317,376 



'793,440 "158,688 



3,067,968 423,168 



211,584 528,960 



211,584 1,057,920 



211,584 528,960 



952,128 211,584 



1,481,088 105,792 



1,481,088 25,600 



317,376 



264,480 



105,792 6,400 



52,896 52,896 



79,344 



6,400 1,600 



3,200 



Raphidium Richteriella 

 polymorphum botryoides 



" 1,600 



1,600 



132,240 



1,600 



1,600 



1,600 



54,496 



79,344 



3,200 



Meter in Plankton op 

 — (Continued) 



Pediastrum 

 boryanum 



9,600 



9,600 



52,896 



19,200 



12,800 

 105,792 



105,792 



Scenedesmu 

 obliquus 



1,600 

 1,600 



3,200 



52,896 



1,600 



105,792 



1,600 



"52,896 

 3,200 



9,600 

 79,344 



158,688 



19,200 



211,584 



19,200 



158,688 



105,792 



105,792 



528,960 211,584 



105,792 



211,5S4 



51,200 



211,584 



317,376 



19,200 



211, 5S4 



6,400 



52,896 



9,600 



6,400 



3,200 



Scenedesmus 



quadricauda 



400 



3,200 



400 



1,600 



3,200 



105,792 



79,344 



6,400 



132,240 



9,600 



132,240 



290,928 



105,792 



158,688 



132,240 



105,792 



6,400 



3,200 



3,200 

 6,400 

 132,240 

 3,200 

 9,600 



Pediastrum 

 duplex 



12,800 



1,600 



6,400 



25,600 



105,792 



22,400 



211,584 



396,720 



925,680 



1,851,360 



1,481,088 



1,692,672 



1,375,296 



581,856 



2,221,632 



1,163,712 



2,433,216 



3,596,92S 



4,241,680 



2,962,176 



4,559,056 



4,770,640 



2,539,008 



1,639,776 



1,533,984 



634,752 



132,240 



185,136 



105,792 



52,896 



52,896 



9,600 



52,896 



Schroederia 

 setigera 



1,600 



1,600 



