Physiology". — ''Experimental researches on the permeabiliti/ ojt the 

 kidneys to glucose." By Prof. H. J. Hamburger and R. Brinkman. 



(Communicated in the meeting of Sept. 29, 1917). 



III. The NaHCO,, percentage in the transmission-fluid '). 



Ill a former paper ^) on this subject we discussed the reason which 

 induced us to enter upon a systematical investigation of the effect 

 which the composition of the RiNGKR-fluid had upon the retention- 

 power of the frog's kidney with respect to glucose. This investigation 



TABLE I. 

 Effect of the Ca-concentration in the RiNGER-fluid on the retention of glucose. 



^) A more detailed account will he given in the Biochemische Zeitschrift- 



^) Hamburgkr and Brinkman : Verslagen van de Koninklijke Akademie v. 



Wetenschappen van Jan. 27, 1917, p. 944. 



■'•) Obviously the results relate to the glomerulusproduct. Gf- the above-mentioned 



paper p. 946, 



