... of the year when food was scarcest; they would also rear more young, which would tend to inherit these slight peculiarities. The less fleet ones would be rigidly destroyed. I can see no more reason to doubt that these causes in a thousand generations... The American Journal of Science and Arts - Page 471869Full view - About this book
| William Thomas Greene - 1884 - 540 pages
...scarcest; they would also rear more young, which would tend to inherit these slight peculiarities. The less fleet ones would be rigidly destroyed. I can...greyhounds can be improved by selection and careful breeding.' Yet this condition of things, if followed out to its full consequences, seems to lead only... | |
| Science - 1902 - 584 pages
...scarcest; they would also rear more young, which would tend to inherit these slight peculiarities. The less fleet ones would be rigidly destroyed. I can...greyhounds can be improved by selection and careful breeding. So would it be with plants under similar circumstances. If the number of individuals of a... | |
| Charles Darwin - Evolution - 1909 - 310 pages
...they would also rear more young, which young would tend to inherit these slight peculiarities. The less fleet ones would be rigidly destroyed. I can see no more reason to doubt but that these causes in a thousand generations would produce a marked effect, and adapt the form of... | |
| English periodicals - 1858 - 478 pages
...scarcest ; they would also rear more young, which would tend to inherit these slight peculiarities. The less fleet ones would be rigidly destroyed. I can...greyhounds can be improved by selection and careful breeding. So would it be with plants under similar circumstances. If the number of individuals of a... | |
| C. Leon Harris - Science - 1981 - 360 pages
...would tend to inherit these slight peculiarities. The less fleet ones would be rigidly destroyed. l can see no more reason to doubt that these causes...greyhounds can be improved by selection and careful breeding. So would it be with plants under similar circumstances. lf the number of individuals of a... | |
| Peter J. Bowler - Nature - 1993 - 676 pages
...they would also rear more young, which young would tend to inherit these slight peculiarities. The less fleet ones would be rigidly destroyed. I can see no more reason to doubt but that these causes in a thousand generations would produce a marked effect, and adapt the form of... | |
| Charles Darwin - Reference - 1996 - 382 pages
...they would also rear more young, which young would tend to inherit these slight peculiarities. The less fleet ones would be rigidly destroyed. I can see no more reason to doubt but that these causes in a thousand generations would produce a marked effect, and adapt the form of... | |
| Richard Owen - Science - 2003 - 472 pages
...scarcest ; they would also rear more young, which would tend to inherit these; slight peculiarities. The less fleet ones would be rigidly destroyed. I can...greyhounds can be improved by selection and careful breeding.* Observation of animals in a state of nature, however, is still required to show their degree... | |
| Charles Darwin - History - 2003 - 676 pages
...scarcest; they would also rear more young, which would tend to inherit these slight peculiarities. The less fleet ones would be rigidly destroyed. I can...greyhounds can be improved by selection and careful breeding. So would it be with plants under similar circumstances. If the number of individuals of a... | |
| Peter J. Bowler - Science - 2003 - 485 pages
...they would also rear more young, which young would tend to inherit these slight peculiarities. The less fleet ones would be rigidly destroyed. I can see no more reason to doubt but that these causes in a thousand generations would produce a marked effect, and adapt the form of... | |
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