3 5 

 over one^the furrows separating two lateral cells so that one 

 cell is at the edge of the blastoderm. In order not to 

 multiply figures there is given only one drawing 3f 

 sections from such blastoderms. Fig. L, III. is a sect- 

 ion through such a structure as Fig. 12, PI, I. in the plane 

 a- - , . "ere one central cell is very much higher than 

 of the other cells. 'Hie other central cell is comj 

 cut out of the protoplasm and is roofed over by tc 



from the high cell to the left outer cell. 

 Following the sections to one side of this, the bri 



cell under it are foun - . thu 



to have been spli mass of prot 



Another eight-celled blastoderm, jui , is : 

 either of the foregoing, is represented in Fig. 13, PI. I. 

 "ere one cell has, y orial furrow, become cut out 

 to lie si- St. Its origin from the lower 



left cell is very ivident , side of the structure 



is normal save that tb - cell is slightly flattened 

 its inner edge by contact with this central cell. As _ 

 preceding case, so her be variations in the posit- 



ion of this high level cell. It 3 center, at 



sdge, or at any intermediate position on the blastod 

 a section through the plane a--b of Fig, 13, would give a 



