50 Miss Marshall and Dr. Ramsay on the Heats of 

 Table VII. 





Ratio 

 to benzene. 



L. 



t. 



M.* 



M.L 

 T * 





1-000 



0-920 



0-877 



2-293 



1-028 



1167 

 1000 

 1-028 

 0956 

 0-933 

 0-943 

 0881 

 0867 

 0--S44 

 0-794 



94-4 



86-8 



82-8 



536-6 



2165 



97 



1101 

 94-4 



970 

 90-2 

 88-1 

 89-0 

 83-2 

 81-8 

 79-7 

 750 



80° -2 

 110-8 

 138-5 



100° 



78-2 

 118-5 



31-8 

 54-3 



57-1 

 80-9 

 77-15 

 79-7 



101-25 

 99-2 



102-7 

 92-3 



77-40 



91-30 



105-20 



17-86 

 45-66 

 59-52 



59-52 



73-42 



7342 



87-32 



87-32 



87-32 



101-22 



101-22 



101-22 



101-22 



20-65 

 20-61 

 21-03 

 25-64 

 28-09 

 14-72 



21-45 

 21-13 

 21-53 

 22-38 

 21-93 

 21-99 

 22-45 

 22-22 

 21-43 

 20-74 





Metaxylene 



Water 



Alcohol 





Methyl For i n ate 



Ethyl Formate 



Methyl Acetate 



Propyl Formate 



Ethyl Acetate 



Methyl Propionate . . . 

 Propyl Acetate 



Ethyl Propionate 



Methyl Butyrate 



Methyl Isobutyrate ... 



* The molecular weights are calculated by taking 



rH=l. 



\ 0=15-86 (Eayleigh & Scott). 



[ C= 11-90 (Stas :—C= 12-005 when 0=16). 



The absolute zero is taken as*— 273 G, 7. 



10. The results of these experiments may, we think, be 

 regarded as satisfactory so far as they go. 



A good many difficulties have been encountered, but most 

 of them have been overcome ; and with a few more improve- 

 ments in matters of detail we believe that the method will 

 become almost as simple in practice as in theory, and will 

 give results as good as can be required for ordinary purposes. 



We do not profess or desire to aim at such accuracy as 

 Mr. Griffiths has reached in his work on water ; our method 

 does not and cannot lend itself to such refinements. 



We rather hope to obtain for a large number of liquids 

 values that are certainly within one per cent, of the truth, 

 and often much nearer. 



Up to the present our experiments have mostly been 

 limited to Dr. Young's esters, which were ready to hand ; 

 but we propose to extend them now, as far as possible, to 

 any other liquids that we can obtain pure, and whose boiling- 

 points fall between 30° and 150°. 



We desire, in conclusion, to express our thanks to Prof. 

 Carey Foster for the use of his laboratory in the later part 

 of the work, and to Mr. A. W. Porter for his kind assistance 

 and advice in the matter of the resistance measurements. 



