234 



O. C. GLASER. 



Stage. Condition. Sections. ; Entoderm. Nuclei. Mitoses. Amitoses. Cells 



Totals 



Fig. 9. The first column at the left contains the numbers applied for purposes of 

 description to the several stages used ; the second column contains outline drawings 

 illustrating the condition of the stages employed ; the third the number of sections 

 studied ; the fourth a statement of the condition of the entoderm ; the fifth the num- 

 ber of nuclei counted ; the sixth the number of mitoses seen ; the seventh the number 

 of amitotic divisions registered ; and the eighth the number of entodermal cells present 

 in a section cut in the plane of the heavy line which is drawn through each picture 

 of the larval stages in the second column. Wherever number or other statements are 

 based on inference or deduction, this fact is indicated by a small letter which refers 

 to a foot-note, which in turn refers, if necessary, to the page where the evidence on 

 which the inference or deduction is based, is given in full. («) See Fig. 2 and page 

 238. (#) Estimated; see Fig. 2 and page 238. (c) Estimated; see page 239. 



