192 



Prof. Tyndall on the Absorption and 



Table XVI.— Chloroform. 



Unit- 



■measure y^th ot a cu 



bic inch. 





Absorption 









i 



Measures 



Observed. 



Calculated. 



1 



4-5 



4-5 



2 



90 



90 



3 



138 



135 



4 



182 



180 



5 



223 



225 



6 



27-0 



270 



7 



31-2 



31-5 



8 



350 



36-0 



9 



39-0 



405 



10 



400 



45-0 



Subsequent observations lead me to believe that the absorp- 

 tion by chloroform is a little higher than that given in the above 

 Table. 



Table XVII.— Alcohol. 



Unit-measure \ a cubic inch. 

 Absorption. 





r~ 





Measures. 



Observed. 



Calculated. 



1 



40 



4-0 



2 



72 



8-0 



3 



105 



120 



4 



140 



160 



5 



190 



20-0 



6 



230 



240 



7 



28-5 



28-0 



8 



32-0 



320- 



9 



375 



36-0 



10 



41-5 



400 



11 



45-8 



44-0 



12 



48-0 



48-0 



13 



504 



520 



14 



53-5 



560 



15 



55-8 



60-0 



Tension. 



\ inch 

 1 inch 



By mercurial gauge. 



Deflection. Absorption. 



60 157 



not practicable. 



The difference between the measurements when equal tensions 

 and when equal volumes at the maximum density are made use 

 of is here strikingly exhibited. 



In the case of alcohol I was obliged to resort to a unit-mea- 

 sure of \ a cubic inch to obtain an effect about equal to that 



