26. 



of the eame taipoloa woe Jit naift-ai for a p rlo r . of six lays in 20 c.c. 0*01 S 

 HC1 made up to 400 o.o* - the same volume aa had been used in tw previous 

 sxperlaants. The C0 2 proiuotior; decreased in all three aata. Although tha 

 absolute deoreae* eae greater in th© l«rg>»r tadpol^e, the relative decrease was 

 greater in the smaller on?a, tha par cant dscreaeo Doing 33J&, 48$ and 5p£ in 

 tha largo, moiiuoi .tnvi small also* raapaotl vtly. 



If tha decrease in COj production ha compared to weight and area, 

 uaing tno large else aa IV$> (Tabla 35), tha daoraaaa in COj production ia e#im 

 to be wore neerlj correlated with area than with volume. This experiment, while 

 suggostivo, la not conclusive, however, aa there were no distilled water oontrola 

 and aa the C0 3 production in distilled water showed a continuous decrease even 

 before the acli x?.a aided* 



In the next eeriea (Experiment 18) the error due to the lirger 

 tadpoles exhauatlng the air in thnir Jar was avoided by putting the eane weight 

 rather than th« same number of tadpoles in eneh Jar. Tha Jere »ere divided 

 into four seta, each contelnin? three sixes of tadpoles numbered A, B, and C 

 (Table 26). The large tadpoles (A) were hardly comparable with the other 

 two slses, aa all had hind lege in which the sec on 4 Joint had already developed* 

 low. IA IBi 3A especially, were different, the forcer because it had a very 

 large compact body and short, stubby tail, the latter because the body *a* 

 rather long sr.1 fie l*gs were such farther developed than in any of the othyrs, 

 Tha individual tadpoles were weighed an:! tee as u red and the areas oomputsd as in 

 the above experiments. However, only the summaries are given hers (Tible ?S). 

 After the 00, production had been determined for six successive days in distilled 

 water, sat 1 was kept as a control, while eetj 2, 3 and 4, were put in 20 c.c. 

 of KOH, Ca(0H) 2 an.l H 3 90 4 respectively, mode up to 400 c.c. Tha C0 3 pro- 

 duction in these solutions win* dstsrmin^d for four days. An examination of 

 the summary (Table 26) shows le the CO- pfSsfettiOB per gram varies from 



