The mutation theory; experiments and observations on the origin of species in the vegetable kingdom . w # ^ HYOSCYAMUS PALLIDUS X — H. niger. B.—H. pallidus. *trl|<. Hno^ % Wr. o z. in> UJ z qEm D o z< Z u6 < z< uq:< < -J CO < o < -J UJ tr X .ti < z< u< < _j O c*- O c J 2. < UJ z oo z UJ Qq:<o -I< Zu cr UJQ-XUJ UJ X < UJ ?r o Z Ul O UJ q: H-I DU

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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherchicagoopencourtpu