nOV) 



F). When we put in (8) and (9) y = 3, tlien it follows : 



1 A/iA -1 1 /dP\ 1 



^^'^d— -.r~- --.TTF.- • (17) 



RT \dxj:^^'j V~v RT' \dxJ:,;^o A TF 



Herein K — i^ is the increase of volume on melting, AW the heat 

 of melting of the substance F. V — v can be as well positive as 

 negative, A IF is always positive. From (17) it now follows that: 



when the equilibrium F -{- L -\- G is situated in the minimnm- 

 meltingpoint of the substance F, addition of a third snbstance will 

 increase the pressure (T constant), when the substance melts with 

 increase of volume ( V y> v) and decrease when the substance melts 

 with decrease of volume {V<^v). The temperature (P constant) 

 is lowered. 



We may ex|)ress the above-stated also in the following way : 

 from F the pressure increases along the vapoursaturationcurve 

 under its own vapour-pressure going through F and the temperature 

 decreases along the boilingpointcurve going through F. 



From F the pressure increases along the saturationcurve under 

 its own \apourpressure going through F, when F melts w^ith in- 

 crease of volume and the pressure decreases when F melts with 

 decrease of volume. Along the boilingpointcurve going through F 

 the pressure decreases from F. 



Also we 'should be able to examine what influence has a third 

 substance on the binary equilibrium F -\- L -\- G, when this is 

 situated in the point of maximum temperature (point H in ügs. 5 

 and 6) or in the point of maximum pressure of its P, J'-curve. We 

 refer to this later. 



(To be continued). 



Physiology. — ''The effect of subcutaneous turpentine-Injections on 

 the chemotaxis of remote places" By Prof. H. J. Hamburger. 

 After experiments by Dr. J. Buitenhuis. 



(Communicated in the meeting of November 29, 1918). 



Oji a former occasion the attention was drawn to the favourable 

 effect of slight amounts of turpentine on the rapidity of phagocytosis.') 

 In a dilution of 1 : 100.000 an increase was found of 24.7 "/„ and 

 even in a dilution of 1 : 500.000 an increase of 16 7o • 



1) Hamburger, de Haan and Bubanovic: On the eflect of Chloroform, Iodoform 

 and other substances dissoluble in fat, on Pliagocytosis. Proceedings of the Meeting 

 of Jan. 28, 1911, p. 913. 



