It has always been the chief hindrance to a more rapid advance in botany, that the majority of writers simply collected facts, or if they attempted to apply them to theoretical purposes, did so very imperfectly. I have therefore singled out those men as the true heroes of our story who not only established new facts, but gave birth to fruitful thoughts and made a speculative use of empirical material. From this point of view I have taken ideas only incidentally thrown out for nothing more than they were originally; for scientific merit belongs only to the man who clearly recognises the theoretical importance of an idea, and endeavours to make use of it for the promotion of his science. For this reason I ascribe little value, for instance, to certain utterances of earlier writers, whom it is the fashion at present to put forward as the first founders of the theory of descent; for it is an indubitable fact that the theory of descent had no scientific value before the appearance of Darwin’s book in 1859, and that it was Darwin who gave it that value. Here, as in other cases, it appears to me only true and just to abstain from assigning to earlier writers merits to which probably, if they were alive, they would themselves lay no claim.
This state of things finally ceased with the appearance of Darwin’s first and best book on the origin of species in 1859; from a multitude of facts, some new, but most of them long well-known, he showed that the constancy of species was no longer an open question; that the doctrine was no result of exact observation, but an article of faith opposed to observation. The establishment of this truth was followed almost as a
The armed escort motioned the car to a halt before an immense tent of glistening black. Before the tent armed men lounged under a pennant bearing a lion couchant in crimson on a field verte.
The scenery above and below the Cave attracted the attention of the earliest western travelers. Much deforestation has taken place during the past century, but the landscapes along the banks of that section of the Ohio stand today, as they did in the olden days, unsurpassed by any other along the river’s course. The mouth of the Cave is in a high bluff overlooking the Ohio, which is the central link in a chain of majestic landscapes. It seems almost a paradox that a spot so beautified by nature should have been made the headquarters of outlaws, and the scene of much that was hideous in crime.
The armed escort motioned the car to a halt before an immense tent of glistening black. Before the tent armed men lounged under a pennant bearing a lion couchant in crimson on a field verte.详情 ➢
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