...intermixture ; and horticultural experiments have established, beyond the possibility of refutation, that botanical species are only a higher and more permanent class of varieties; and that even the local and cultivated varieties to which he alludes, if they do not come in contact with...

...intermixture ; and horticultural experiments have established, beyond the possibility of refutation, that botanical species are only a higher and more permanent class of varieties; and that even the local and cultivated varieties to which he alludes, if they do not come in contact with...

...Herbert, in order to avoid the difficulty they present to a favourite theory, declares it as his opinion, that botanical species are only a higher and more permanent class of varieties, which should be discarded from the systems, leaving the genera to define the individuality of kind...

...Herbert, in order to avoid the difficulty they present to a favourite theory, declares it as his opinion, that botanical species are only a higher and more permanent class of varieties, which should be discarded from the systems, leaving the genera to define the individuality of kind...

...Herbert, in order to avoid the difficulty they present to a favorite theory, declares it as his opinion, that botanical species are only a higher and more permanent class of varieties, which should be discarded from the systems, leaving the genera to define the individuality of kind...

...339), declares that "horticultural experiments have established, beyond the possibility of refutation, that botanical species are only a higher and more permanent class of varieties." He extends the same view to animals. The Dean believes that single species of each genus were created...

...339), declares that "horticultural experiments have established, beyond the possibility of refutation, that botanical species are only a higher and more permanent class of varieties." He extends the same view to animals. The Dean believes that single species of each genus were created...

...Rev. W. Herbert, Dean of Manchester, who, in a work on Amaryllidaceae, 1837, advanced the proposition 'that botanical species are only a higher and more permanent class of varieties :' the precise language used by Mr Darwin. He also believed that the single Species of each animal...

...Rev. W. Herbert, Dean of Manchester, who, in a work on Amaryllidaceae, 1837, advanced the proposition 'that botanical species are only a higher and more permanent class of varieties :' the precise language used by Mr Darwin. He also believed that the single Species of each animal...

...of mankind. In 1822 the Rev. William Herbert, afterward dean of Manchester, declared his conviction that " botanical species are only a higher and more permanent class of varieties;" and lie extended this opinion to animals. Leopold von Buch, in his Phyiikaliteke Betchreilung der Canarischen...