SECT. 2] 



AND WEIGHT 



385 



weight at any given moment gives a curve which rises steadily till 

 the observations cease without betraying much sign of any slackening. 

 But the increment curves, on the other hand, show an unmistakable 

 S-shape which is due to the fact that, for the earlier periods, the 



— o AbsoLate weight gms. wet 

 • >> )> j> dry 



— Dajly incremenbl 



^ « Mid » r^^- 



Fig. 34- 



weight gained each day is very little more on one day than the gain 

 on the previous day, while, towards the middle of development, the 

 daily increments and the mid-increments vary much more, each one 

 being considerably higher than the one before. On the other hand, 

 when the end of development is approaching, the increments each day, 

 though far higher in absolute amount than those which were made 

 in the early stages, do not differ so materially from one another, with 



NEI 25 



