 | 1902 - 642 頁
...botanist Asa Gray, who was one of the earliest converts to Darwin, still believed that ' variation had been led along ' certain beneficial lines,' like a...along definite and ' useful lines of irrigation.' f The American naturalist Cope invokes a ' growth-force ' which acts independently of ' fitness,' as... | |
 | 1888 - 934 頁
...intentionally and specially guided. However much we may wish it, we can hardly follow Professor Asa Gray in his belief that ' variation has been led along certain...' along definite and useful lines of irrigation.' "* Only one other matter remains to be dealt with ; but this, if I mistake not, is a matter of considerable... | |
 | James Samuelson, William Crookes - 1868 - 664 頁
...intentionally and specially guided. However much we may wish it, we can hardly follow Professor Asa Gray in his belief that ' variation has been led along certain...variation was from the beginning of all time preordained, the plasticity of organization, which leads to many injurious deviations of structure, as well as that... | |
 | 1868 - 676 頁
...intentionally and specially guided. However much we may wish it, we can hardly follow Professor Asa Gray in his belief that ' variation has been led along certain...variation was from the beginning of all time preordained, the plasticity of organization, which leads to many injurious deviations of structure, as well as that... | |
 | 1868 - 540 頁
...We do not, however, understand the statement of his concluding paragraph, in which he says : — " If we assume that each particular variation was from the beginning of all time pre-ordained, the plasticity of organization, which leads to many injurious deviations of structure, as well as that... | |
 | 1869 - 542 頁
...Darwin observes, " however much we may wish it, we cannot blindly follow Professor Asa Gray in his belief, that variation has been led ' along certain...variation was from the beginning of all time preordained, the plasticity of organization which leads to many injurious deviations of structure, as well as that... | |
 | John Holmes Agnew, Walter Hilliard Bidwell - 1869 - 998 頁
...1869.] SPEDDING'ä " LIFE AND LETTERS OF B \CON." we cannot blindly follow Professor Asa Gray in his belief, that variation has been led ' along certain...variation was from the beginning of -all time preordained, the plasticity of organisation which leads to many injurious deviations of structure, as well as that... | |
 | 1869 - 844 頁
...monstrous confusion. It is in this sense, perhaps, we are to understand Professor Asa Gray when he says that " variation has been led along certain beneficial...stream "along definite and useful lines of irrigation." Mr. Darwin feels unable to accept the conclusion ; but as he only justifies his position by a faulty... | |
 | Sir Norman Lockyer - 1877 - 848 頁
...designed. However much we may wish it, we can hardly follow Prof. Asa Gray in his belief ' that variatim has been led along certain beneficial lines,' like...'along definite and useful lines of irrigation.'" * I could give a number of other quotations to the same general effect from the writings of Mr. Darwin,... | |
 | St. George Jackson Mivart - 1871 - 388 頁
...intentionally and specially guided. However much we may wish it, we can hardly follow Professor Asa Gray in his belief that ' variation has been led along certain...variation was from the beginning of all time pre-ordained, the plasticity of the organization, which leads to many injurious deviations of structure, as well... | |
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However much we may wish it, we can hardly follow Professor Asa Gray in his belief that " variation has been led along certain beneficial lines," like a stream "along definite and useful lines of irrigation. 
