164 



Increase of volume per graraaequivalent : 



3.42 cc. 



Experiment III. 

 Displacement of the meniscus 39.6 mm := 14.53 mm\ 

 Silver deposit in grams. 

 Goniometer 1. Coulometer 2. 



0.4073 0.4079 



Increase of volume per gramaequivalent : 



3.84 cc. 

 As the experiments were executed with equal care, we take the 

 mean of our results viz. 3.67 cc. 



Dr. TiMOFEJEW found in the way indicated 3.54 cc. 

 The agreement is satisfactory when we consider that PbO.^, the 

 density of which has so great an influence on the result, cannot be 

 obtained in a pure state as we shall show in our paper in the 

 "Zeitschrift fur phj^sikalische Chemie." 



We wish to thank Mr. W. D, Helderman., who very kindly helped 

 'us in one of our experiments. 



Utrecht, van 't HoFE-Laboratory, June 1913. 



Physiology. — "Influence of alcohol upon the respiratory exchange 

 during rest and during muscular exercise". By Dr. C. J. C. 

 V. HooGENHUYZE and J. NiEUWENHUYSE. (Communicated by Prof. 

 0. Eijkman). 



In an earlier publication ^) we have demonstrated the influence of 

 the temperature of the surroundings upon the respiratory exchange 

 during muscular exercise, our evidence showing that the latter occurs 

 more economically at a high than at a low temperature. 



We have now set ourselves the problem how far under these 

 various circumstances the use of alcohol acts upon the respiratory 

 exchange. 



For this the first essential was to find out whether the use of 

 alcohol affects the metabolism during rest. 



Experiments on this subject have been published by Geppert ^) 



1) C. J. G. VAN HooGENHUYZE and J. NiKUWENHUYSE : Influence of tlie seasons 

 on respiratory exchange during rest and during muscular exercise. Proceedings 

 Oct. 26, 1912, 



~) Geppert Einwirkung des AUvohols auf den Gasweclisel des Mensclien. Archiv. 

 f. Exper. Patli und Ther. Bd XXII p. 367, 1887. 



