[April, 
OF THE ACADEMY OF 
TABLE OF CELL-LINEAGE. 
A. QUADRANT. 
PROCEEDINGS 


TST 
CTR 

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dL 89 49 09 99 ES 8h th Oh YE 2G 80 
: 
7 751 BH V3 O71 Al Hl 801 KOOL 96 365 88 4. 
headed bent arrows in history 
ic direction of cleavage; to left, leo- 
of 4d, bilateral cleavages with relation to cells of opposite side. 
Arrows pointing to right, dexiotrop 
tropic; double-headed arrows, horizontal; double- 
