History of Botany (1530-1860)
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Unger showed in this way that the pro- cesses at the growing point of the stem could scarcely be reconciled with Schleiden's theory, and in this view he was supported by the English botanist Henfrey; but Nageli was the first who addressed himself with energy and sound reason- ing to the important and difficult question, how cells are formed in reproductive and growing vegetative organs, and how far the processes are the same in the lower Cryptogams and in the Phanerogams. He set out by assuming... that Schleiden's theory was in the main correct, but his long-continued investigations led him finally to the conviction that it must be entirely abandoned, and he proposed the outlines of the theory of cell-formation which is accepted at the present time. In this case, as before in questions of morphology, he applied himself first, and with great success, to the investigation of the lower Cryptogams, while Alexander Braun's observations on some very simple Algae contributed materially to the further development of the cell-theory, and especially to extending and correcting the idea of the cell; Hofmeister's researches also in embryology not only produced great results for morphology, but at the same time supplied a variety of facts which served to complete Nageli's view.
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You can find similar books in the "Read Also" column, or choose other free books by Balfour, Isaac Bayley, 1853-1922 to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Unger showed in this way that the pro- cesses at the growing point of the stem could scarcely be reconciled with Schleiden's theory, and in this view he was supported by the English botanist Henfrey; but Nageli was the first who addressed himself with energy and sound reason- ing to the important and difficult question, how cells are formed in reproductive and growing vegetative organs, and how far the processes are the same in the lower Cryptogams and in the Phanerogams. He set out by assuming... that Schleiden's theory was in the main correct, but his long-continued investigations led him finally to the conviction that it must be entirely abandoned, and he proposed the outlines of the theory of cell-formation which is accepted at the present time. In this case, as before in questions of morphology, he applied himself first, and with great success, to the investigation of the lower Cryptogams, while Alexander Braun's observations on some very simple Algae contributed materially to the further development of the cell-theory, and especially to extending and correcting the idea of the cell; Hofmeister's researches also in embryology not only produced great results for morphology, but at the same time supplied a variety of facts which served to complete Nageli's view.
What to read after History of Botany (1530-1860)?
You can find similar books in the "Read Also" column, or choose other free books by Balfour, Isaac Bayley, 1853-1922 to read onlineMoreLess
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