On the Composition of Cassiopea Xamachana. 109 



these are compared with the proportions given by the normal examples 

 having either the final or initial body-weights. More exact state- 

 ments can be made after we have obtained a large number of data on 

 both the normal and starved specimens. 



Briefly summarized, the results of the observations made on the 

 starved cassiopea are as follows : 



(1) In general the smaller cassiopea loses relatively more in weight than does 



the larger cassiopea. 



(2) The percentage of water found in the entire body, as well as in the three 



different parts, is nearly the same in all sizes of cassiopea. However, 

 the values of the water-content in the starved appear to be slightly 

 higher than that found in the normal cassiopea. 



(3) The nitrogen-content of the entire body is higher in the small than in the 



larger cassiopea, as in the case of the normal animals. 



(4) However, the absolute amount of nitrogen found in the starved cassiopea 



is considerably higher than in the normal having the same body- 

 weight. It was noted also that, although high when compared with 

 a normal specimen equal in weight to the starved animal, it is very 

 low for the initial body-weight of the starved animal. This shows 

 that the nitrogen has also been consumed during the period of 

 starvation. 



(5) The nitrogen-contents for the different parts of the body are similar in 



their relations to those found in the normal cassiopea. 



(6) The loss in weight of the different parts is of such a character that their 



proportion in the starved remain similar to those in the normal 

 cassiopea. 



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