AND LIQUIDS AND THEIR VARIATION WITH TEMPERATURE. 429 



f 25, 50, 75 per cent., by weight. 



Glycerine 111 water { 



I 20-8, 44'2, 70-4 per cent, by volume. 



f25, 50, 75 per cent., by weight. 

 Ethyl alcohol in water- . . . . J 



|_30, 08, 81 per cent., by volume. 



T23-9, 50, 74'7 per cent , by weight. 

 Methyl alcohol in water . . . .4 t 



I 28'8, 58, 807 per cent,, by volume. 



T25, 50, 75 per cent , bv weight. 



Acetic acid in water < 



L24, 48 '7, 74 per cent., by volume. 



25, 49-2, 74-8 per cent., by weight. 



C41ycerine in ethyl alcohol . . . , 



I 17'4, 387, 65'3 per cent., by volume. 



Methyl alcohol in ethyl alcohol . 25, 48'5, 74 per cent., by weight and by volume. 



25, 50, 67 per cent., by weight. 



U7-2,38-8, 62-6 per cent., by volume. 



Some of the experiments were carried out with the ebonite ring apparatus, fig. 1 1 , 

 p. 419, some with the earlier form of apparatus, fig. 10. 



The following table gives the experiments made with the former apparatus : 



Constants of Apparatus. 



T = 2 centime. irr 2 = 12'5 sq. centims. 



r t = 1-855 7T/7 = 10-8 



t t =0-127 



t Q = 0-281 ,. (i = -070 centims. 



M = -320 + "075 = "395 centims. 



h = -00030, 2irrh -^ '00026 



4 



2Trrht N = '00148 



Sum -00174 



* HENNEBEEG, 'Wied. Ann.,' vol. 3G, p. 146, 1889, obtained results for mixtures of water and ethyl 

 alcohol which ngree closely with those that follow. 



