CELL SIZE AND METABOLIC ACTIVITY IN AMPHIBIA. 369 



abnormally high carbon dioxide output. Table VI. and Chart 3 

 illustrate this variation. The two specimens chosen were both 

 starved for a long period, and determinations were made through- 

 out the period. 



Both these animals show unmistakably the upward trend of 

 tin- production of carbon dioxide with increased length of starva- 

 tion, rvrn bryond that which can be accounted for on the ba>i> 

 of decreasing weight during starvation. The writer w.is led to 

 in.ikr tin- computations on the basis of standard weight lur.iu-f 

 a preliminary examination of the results had suggested th.it tin- 

 .n ui.il ini rease observed was largely or entirely due to this factor. 

 Tlu-t n -nit- mean, then, that the reduced amount of living 

 ti in- n -ulting from starvation actually products u givau-r 

 ab-ohitr amount of carbon dioxide than the greater amount ot 

 living ti--m- | in -.(.-nt at the beginning of starvation. 



07 



01 



03 



01 



10 



00 



50 



60 



too 



i H\KI (. Influence of starvation on carbon dioxide output in .\ecturns. 

 AI>-.-U-.i. iiuinl" i oi" d.i\'s starved; ordinate, COs in milligrams per gram of body 

 \\ri.nlit |>er hour. 1> -to \ecturiis No. 4; cin K- to \ fit urns No. 7. The 



broken i-urve i- l>.i-. .1 on the "standard weight" figures in Table VI. 



