No. 608] SHOBTER ARTICLES AND DISCUSSION 503 



months indications pointed very strongly to the fact that a re- 

 duction in size followed transplanting into less dense solutions. 



A table below shows the results obtained with the first series. 

 No. 1 contains the water as obtained from the lake, analysis of 

 a sample of which (1910)° gives the following: 



Total of constii 



Solutions and 00 were allowed to become further concen- 

 trated by evaporation in the laboratory. Nos. 2 to 8, inclusive, 

 were diluted with distilled water. The first measurements were 

 made some time after the series was started to allow the plants 

 to become accustomed to the new conditions, only, indeed, after 

 multiplication had begun. Blank spaces in the table indicate 

 that no motile zoospores were present at that time in the solu- 

 tion. 



Semes No. 1 Started October 8 



This table seems to show a slight (iimiimtion iti 

 from the more dense to the less dense solutions, 

 tion of the last and least dense of the solutions, 

 that it is very difficult in measuring Chi a my dor 



sMcFarlane, Wallace, "The Water of the Great Salt I 

 fore the summer meeting (19W) of the Am. Cliem. Soc. 

 by Professor W. C. Ebaugh.) 



loospores 

 (Read be- 



