Marquette—Spore Mother-Cells of Marsilia, 103 
die. It will be necessary to have more extensive data on the 
orientation and position of the fiber groups at this stage be¬ 
fore the relation of the “multipolar” (or quadripolar) spindle 
to the earlier organization of the cell can be advantageously 
discussed. 
It is as yet impossible to judge whether in general a multi¬ 
polar origin of the spindle is to be regarded as inconsistent 
with a permanent polar organization of a cell. Careful study 
may show that even during the multipolar stages, where they 
occur, the original polar organization of the cell is maintained, 
and that the cell-axes can be traced continuously. 
University of Wisconsin , 
Madison, Wisconsin. 
