CYTOPLASMIC INCLUSIONS OF THE GERM-CELLS. 445 
Text-fig. 5. 
MD 
Outline drawing by camera lucida to show varying behaviour in mitosis of 
mitochondria ( M.D .) and acroblasts ( A.B .) in the first spermatocyte 
division of Pier is brassicse. The mitochondria are passive, while the 
acroblasts are caught up in the asters, and are orientated with their concave 
surface towards the chromosomes. X 4250. 
VOL. 62, PART 3. NEW SERIES. 
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