Capillary Attraction in Relation to Chemical 



Composition, on the Basis of 



R. Schiffs Data. 



By K. Ikeda. 



Post Graduate Student iu the Chemical 

 Institute, College of Science. 



Many physical properties of solid and liquid substances can be so 

 measured and expressed thai ihr quantity for a molecule is the sum of 

 the quantities for its constituent atoms. The beat capacity of inorganic 

 solids, the space occupied by liquids at their boiling points, refraction 

 of light, and rotation of the plane of polarization under magnetic 

 influence, are will known examples. The heat capacity of organic 

 -liquids under certain conditions and the magnetic behavior of the 

 same probably belong to the list, and there is reason to believe 

 that the heat of format ion from dissociated atoms is also of the same 

 description. 



All these properties can be represented by the following simple 

 formula, 



F(cc, ß, y, K).= ma + nè+pc+ 



where K is the duly measured property, under consideration, of a 



compound whose chemical formula may be written A m B n C p ; 



while a. £, y. are functions of other properties belonging to the 



substance, and a, />. c are special values for the atoms of 



the constituents A, B, C 



In all known instances a. J3, y. &c, as well as F, are very simple 

 functions. 



