171 



without alcohol: . 



CO2 O2 Respiratory Quotient 



«■ during rest 251.6 j-f^il' 308.2*-- 319.5 0.8I6 j-- »;^05 



y 20 m>„. after water(pedalling) 818.3*-- ^57.4 ,048.9 ;--1^34.0 0.837 J--»^ 



c' 1 hr after Ö' 004 o imax. 987.0 .^.^f. p. imax.l 110.0 -. ^oo ^max. 0.889 



c 1 nr. atter „ 8»4.ö ^^j^ .^g^ .^ 1060.6 ^^^j^^ 9^2.5 "-^^^ imin. 0.786 



w' 3 o'clock D m 040 c5\max.l052.4,f.Q.Q(max.l 174.0 ^ofiQ^max. 0.938 



a 6 ociocK p. m. „ yiö.ci^^jj^ 885.3 '"^^-^imin. 999.9 ^-^^^ }min. 0.806 



These figures go to show again that at this high temperature al- 

 cohol had a similar though less marked influence than at low tem- 

 peratures, since, half an hour after taking the alcohol, with either 

 subject the values of the carbon dioxide output and of the oxygen 

 intake are smaller than in the control-experiments (with N. a diffe- 

 rence of 8 7o Oa» with V. H, 8.1 7J; after IV, hour, however, v. H. 

 shows no difference and N. a smaller one (5.8 7o) ; i" the afternoon 

 again we observe rather the reverse, though the differences are 

 insignificant. 



In comparing the data reported in this paper they will be found 

 to lend support to our previous experience, viz. that muscular work 

 is done less economically at a higher than at a lower temperature. 

 Furthermore we shall see that in both cases alcohol, shortly after 

 being taken in, has a restraining influence upon the respiratory 

 exchange, in other words the muscular work is performed more 

 economically. However, this influence gradually weakens (with one 

 subject sooner than with another) and ultimatel}' even alters more 

 or less to the opposite. The fact that with the one subject. (N.) the 

 favourable influence lasted longer than with the other (v. H.) may 

 be attributed to an equal dose of alcohol (60 c.c. of 96 7o) being 

 taken in by either, while their bodyweights differ considerably. N. 

 weighs without clothing 707., K^.G., v. H. 877, K.G. 



Our results do not bear out Durig's experience in every respect. 

 Probably this is mainly due to the circumstance that he started his 

 experiments when in all likelihood the alcohol had been entirely oxi- 

 dized, in consequence of which the favourable action at the begin- 

 ning of the period, as detected by us, escaped his notice. Neither 

 did we find that the action at the end of the period was as un- 

 favourable as was implied by Durig's results. 



In our opinion the weak point in Durig's experiments is that the 

 work performed in the time unit had not, as in our experiments, 

 been carefully and equally apportioned, but had virtually been left to 

 chance. In consequence of this the alcohol tests always lasted much 

 longer than the non-alcohol tests. Therefore his tables of results with 



