 | Laurence Ladd Buermeyer, Laurence Buermeyer - Thought and thinking - 1923 - 372 pages
...(taking variation as a fact given) "favorable variations would tend to be preserved, and unfavorable ones to be destroyed. The result of this would be the formation of a new species. Here then I had at last got a theory by which to work." 1 These sentences mark the beginning... | |
 | Henry Fairfield Osborn - Naturalists - 1924 - 290 pages
...and unfavorable ones to several years before, and which 14 DARWIN be destroyed. The. remit of thi* would be the formation of new species. Here, then,...avoid prejudice that I determined not for some time to write even the briefest sketch of it. In June, 1842, I first allowed myself the satisfaction of... | |
 | Robert Henry Murray - Science - 1925 - 492 pages
...struggle for existence which everywhere goes on from long-continued observation of the habits of animals and plants, it at once struck me that under these...destroyed. The result of this would be the formation of a new species. Here, then, I had at last got a theory by which to work ; but I was so anxious to avoid... | |
 | Sarah Knowles Bolton - Scientists - 1926 - 384 pages
...me that under these circumstances favorable variations would tend to be preserved, and unfavorable ones to be destroyed. The result of this would be the formation of new species. . . . But at that time I overlooked one problem of great importance. . . . This problem is the tendency... | |
 | Leonard Huxley - Naturalists - 1927 - 160 pages
...existence which everywhere goes on from long-continued observation of the habits of plants and animals, it at once struck me that, under these circumstances,...then, I had at last got a theory by which to work." This was to be the master-key, which gave not only a probable theory of the origin of living species,... | |
 | Philip Sargant Florence - Economics - 1927 - 132 pages
...struggle for existence which everywhere goes on, from long-continued observation in the habits of animals and plants, it at once struck me that under these...preserved, and unfavourable ones to be destroyed." Darwin's Autobiography, quoted by WT Layton in an Introduction to Malthus's Essay on Population, Everyman's... | |
 | Horniman Museum - 1928 - 92 pages
...struggle for existence which everywhere goes on from long-continued observation of the habits of animals and plants, it at once struck me that under these...avoid prejudice, that I determined not for some time to write even the briefest sketch of it." And it was not until June, 1842, that he allowed himself... | |
 | George Amos Dorsey - Naturalists - 1928 - 326 pages
...the struggle for existence, "it at once struck me that under these circumstances favourable species would tend to be preserved, and unfavourable ones...avoid prejudice, that I determined not for some time to write even the briefest mention of it." Malthus may have been the spark, but there could have been... | |
 | Henry Fairfield Osborn - Biologists - 1928 - 358 pages
...me that under these circumstances favorable variations would tend to be preserved, and unfavorable ones to be destroyed. The result of this would be...avoid prejudice that I determined not for some time to write even the briefest sketch of it. In June, 1842, I first allowed myself the satisfaction of... | |
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I happened to read for amusement ' Malthus on Population,' and being well prepared to appreciate the struggle for existence which everywhere goes on from long-continued observation of the habits of animals and plants, it at once struck me that under these... 
