...confirmed it by my own practice. Mr. Knight was the first person who advanced the doctrine or dogma, that a fertile cross was proof direct that the two parents...offspring was nearly conclusive evidence that they are of different species. Both these opinions have since been conclusively proved to have no foundation...

...confirmed it by my own practice. Mr. Knight was the first person who advanced the doctrine or dogma, that a fertile cross was proof direct that the two parents...offspring was nearly conclusive evidence that they are of different species. Both these opinions have since been conclusively proved to have no foundation...

...varieties of one and the same species. Thus Dean Herbert writes, referring to experiments of Knight: " The President adopted in his writings a principle...conclusive evidence that they were of different species." He then further adds: " I held also . . . that the production of any intermixture amongst vegetables,...

...cross was proof that the two parents were of the same species," assuming, as a consequence, "that the sterile offspring was nearly conclusive evidence that...without suggesting any alteration in the definition of the term 'species,' but leaving it to imply what it has before universally signified in the language...

...cross was proof that the two parents were of the same species," assuming, as a consequence, "that the sterile offspring was nearly conclusive evidence that...without suggesting any alteration in the definition of the term 'species,' but leaving it to imply what it has before universally signified in the language...