On the Corn-position of Cassiopea Xamachana. 



107 



the data given by Mayer^ show also a shght indication of a difference 

 in the nitrogen-content between the normal and starved cassiopeas; 

 thus the nitrogen-content in the normal is 2.35 per cent for a body- 



Table 8.— Data 07i the content of water, solids, and nitrogen in three parts of starved Cassiopeas. 



weight of 109.3 grams, while the starved gives 2.47 per cent of nitrogen 

 for a final body-weight of 92.4 grams. These differences agree with my 

 own findings. 



iMayer, A. G. 1914. The law governing the loss of weight in starving Cassiopea. Carnegie 

 Inst. Wash. Pub. No. 183, table 2, p. 59. 



