728 



REPORT — 1898. 



arrived at, the earlier experiments (where the calculations are based oa 

 what I have called the ' difference ' nitrogen of the whole second hour) are 

 indicated by an asterisk : — 



Table VII. — Showing the Amount of Proteid excreted 

 {expressed in Grammes.) 



Eip. 



Weight 

 of Dog 



Nitrogen 

 injected 



Proteid N.+ 



extractive 



N. of 2nd 



hour 



Allowance 

 for Extrac- 

 tive N. 



Net. Pro- 

 teid N. 

 excreted 



Per Period on 



cent, of which Calcu- 



Proteid lation is 



excreted based 



I. Witte's Pejatone : not estimated, data insufficient, 

 to Hetero-albumose. 



The same applies 



ir. Proto-albunwse. Average 47 per cent. 



•1372 

 •0591 

 •0785 



•0645 

 •0076 

 •0094 



♦XIII. 



♦XIX. 

 XXXII. 



1976 



14 

 6-3 



III. 



•2012 



•1408 



Deutero-alJmmo$e. Average (?) 



•1386 



•1868 



•0250 



•0159 



•1136 



•1009 



56-46 



71^65 



Average 39 per cent. 



■0123 0680 45-86 



•0206 -0427 31-82 



•0631 38-99 



•0125 





V. Anti-peptone. Average 275 per cent. 



•VIII. 

 •XVIII. 

 XXVIII. 

 XXX. 



•0795 

 •1048 

 •0518 

 •0417 



•0344 

 •0306 

 •0168 

 •0114 



•0451 

 •0742 

 •0350 

 •0303 



31^60 

 3211 

 20-44 

 26-21 



One hour 

 40 min. 

 45 min. 



One hour 

 (urine contd, 

 albumen) 

 One hour 

 Not as yet 

 estimated 



One hour 



I* ** 

 40 min. 



One hour 



*f •* 

 50 min. 

 45 .. 



The average of amounts of excreted proteid are, for proto-albumose, 

 47 per cent, for deutero-albumose (not calculated) ; for ampho-peptone, 

 39 per cent. ; for anti-peptone, 27-5 percent. But even these averages are 

 considerably too high, for two reasons : first, because they include experi- 

 ments where the calculation is made on a longer period than the actual 

 ' peptone '-excretion period ; and, secondly, because it is fairly certain that 

 the deduction made, for ' extractive ' nitrogen, even in the later experi- 

 ments, is too low. If we examine Table VI., which gives the effect of 

 normal salt solution upon the output of nitrogen, we shall see that the 

 augmentation caused by it is greatest in the second hour, and the same 

 applies to urea. Consequently, it is believed that a much greater, probably 

 twice as great, deduction might safely be made for the ' extractive ' nitrogen 

 of the excretion period in the peptone and albumose experiments. This 

 would considerably reduce the proportion throughout, below that shown in 

 Table VII. 



The experiments, therefore, would make it appear probable that 



