919 
LIMITS OF HEREDITARY CONTROL 
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FX ‘surygyds jeseyRyrq & Surmoys ueumoeds & Jo puvq 4say oy, ZI Ro Ay | 
X ‘spueq puodses pue ysig oy} usamyoq woIsny Jo odAy [wsoquytq & YIM usuMdeds y IT oes | 
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No. 4 
JOURNAL OF MORPHOLOGY, VOL. 22, 
