AS INDICATED BY OSMOMETERS. 



65 



There seems to be no reason to doubt, from a comparison of the 

 results of the first two tests with those of the third, that the marked 

 difference in corresponding rates thus evident is due to the different 

 temperature ranges with which the data were obtained. The corre- 

 sponding rates for the first and second tests may be averaged (since 

 these two experiments were performed under relatively similar tempera- 

 ture conditions) and the means thus obtained may be compared with 



Table 1. — Numerical data from the operation oj osmometer A, against water. 



No. 

 of 

 hour 

 per- 

 iod. 



First test. 



Hourly 

 rates per 

 10 sq. cm. 

 for 15- 

 minute 

 periods. 



Average 

 hourly- 

 rates. 



Average 

 hourly 

 temper- 

 ature. 



Second test. 



Hourly 

 rates per 

 10 sq. cm 

 for 15- 

 minute 

 periods. 



Average 

 hoiorly 

 rates. 



Average 

 hourly 



temper- 

 ature. 



Third test. 



Hourly 

 rates per 

 10 sq. cm. 

 for 15- 

 minute 

 periods. 



Average 

 hoiu-ly 

 rates. 



Average 

 hourly 



temper- 

 ature. 



54 

 35 

 16 

 41 



41 

 41 

 41 

 41 



41 

 25 

 41 

 41 



25 

 41 

 41 

 41 



41 

 25 

 41 

 41 



Average main- 

 tained rate*. , 



c.c. 



1.37 



) 1.41 



) 1.37 



) 1.37 



) 1.37 



31.3 

 31.6 

 32.1 

 32.6 

 33.0 



c. 

 32 



47 

 32 



54 



25 

 47 

 25 

 47 



28 

 32 

 41 

 47 



44 

 38 

 44 

 06 



38 

 25 

 47 

 35 



c.c. 



) 1.41 



) 1.36 



) 1.37 



) 1.33 



) 1.36 



29.1 



29.6 



30.4 



31.0 



31.6 



c.c. 

 1.54 

 1.28 

 1.06 

 1.10 



1.25 

 1.25 

 1.10 

 1.10 



1.25 

 1.10 

 1.10 

 1.25 



1.10 

 1.03 

 1.00 

 1.25 



1.06 

 1.22 

 1.00 

 1.10 



1.10 

 1.16 

 1.00 

 1.00 



1.16 

 1.25 

 1.00 

 0.94 



1.10 

 1.10 

 1.10 



c.c. 



) 1.25 



M.18 



1.18 



1.10 



M-io 



) 1.07 



1.09 



Mio 



25.1 

 25.5 

 25.9 

 26.1 

 26.3 

 26.8 

 26.9 

 27.0 



1..38 



1.36 



1.12 



*After hour 1. 



