Ï33 



Whether these substances can be transformed to as high a 

 degree as fibrine I cannot state with absolute certainty, as I 

 was not quite sure that the quantity of colour occurring in all 

 3 substances was the same per unit of surface and capacity. 

 Probably this was not the case, as hen's albumen was weaker 

 coloured than fibrine. Also I again found (the same as I found 

 for fibrine) that the consuming poiver of the ser inn with regard 

 to hen's albunieti, lung and kidneytissue again individually 

 shozved great variety. Mostly hen's albumen was still consumed 

 in loo times diluted serum. Lung- and kidney-tissue in still 

 stronger diluted serum. Serum, obtained from a sufferer 

 from chronic disease of the kidneys-however, corroded kidney- 

 tissîte to a niucJi higher degree than that of non-sufferers. 

 And it makes little or no difference whether lung- and 

 kidneytissue of a man or of a rabbit is taken for this 

 purpose. 



In general however human serum could be further diluted 

 still to be able to obtain transformation of fibrine, than to 

 reach the same purpose for the other mentioned albumina. 

 Therefore I think it probable that, with a reservation as to the 

 just made restriction, human serum, speaking in general, can 

 transform fibrine more strongly than hen's albumen, lung- or 

 kidney-tissue. If, however, I investigated the consuming power of 

 serum, obtained from a sufferer from chronic disease of the 

 kidneys, both in respect to horse-fibrine and coloured kidney- 

 tissue, the kidney-tissue was also repeatedly corroded in a still 

 stronger dilution of the serum. 



This result, viz. that each serum can corrode organic albumen 

 contradicts, what has been pretended bij ABDERHALDEN and 

 his school (page 4 ). If A. however coloured the placenta with 

 carmine, he also found that nearly every serum transformed 

 placenta-tissue (sec note 4, page 5). Moreover BiJLEVELD (5) 

 found that in dialysis continued for more than 16 hours every 

 human serum corroded placenta-tissue in such a way, that 

 this could be indicated by the ninhydrin-reaction. Apparently 

 there is a harmony between these results and mine. The indica- 

 tion of consumption of the organic tissue by means of colour, 

 is, however, a much more sensitive method than the dialysis- 

 method. Hence that every human serum can corrode organic 



