 | George Combe - 1803 - 280 páginas
...of the offspring is always modelled according to the type of the original structure of the parent j and secondly, " that changes produced by external...individual, and have no influence on the progeny." * He supports the first of these propositions with a variety of facts occurring in the Porcupine family,... | |
 | George Combe - 1829 - 326 páginas
...attract her attention, and may, in this way, give the darker tinge to the offspring.* Dr PRITCHAHD states the result of his investigations to be, First,...536. He supports the first of these propositions by a va. .Ay of facts occurling « in tJiO pOfOuphlc ftulllty,' *l«-4he hereditary nature of complexion,'... | |
 | Andrew Picken - 1833 - 356 páginas
...always modelled according to the type of the original structure of the parent. " On the other hand, changes produced by external causes in the appearance...individual, and have no influence on the progeny." This transmission, through families, of original conformation, applies not only to external form and... | |
 | Thomas Hamilton - 1833 - 840 páginas
...always modelled according to the type of the original structure of the parent. " On the other hand, changes produced by external causes in the appearance...individual, and have no influence on the progeny." This transmission, through families, of original conformation, applies not only to external form and... | |
 | George Combe - 1835 - 422 páginas
...must strikingly attract her attention, and may, in this way, give the darker tinge to the offspring.* Dr. Pritchard states the result of his investigations...propositions by a variety of facts occurring 'in the porcupme family,' ' in the hereditary nature of complexion,' and 'in the growth of supernumerary fingers... | |
 | George Combe - 1836 - 130 páginas
...Physical History of Mankind, states the result of his investigations to be, first, That the organisation of the offspring is always modelled according to the...complexion," and " in the growth of supernumerary 'ingers or toes, and corresponding deficiencies." "Man. pertuis has mentioned this phenomenon ; he... | |
 | Andrew Picken - 1837 - 356 páginas
...always modelled according to the type of the original structure of the parent. " On the other hand, changes produced by external causes in the appearance...individual, and have no influence on the progeny." This transmission, through families, of original conformation, applies not only to external form and... | |
 | George Combe - 1841 - 454 páginas
...investigations to be, First, That the organization of the offspring is always * Black hem lay dark-colored eggs. modelled according to the type of the original structure...p. 536. He supports the first of these propositions hy a variety of facts occurring ' in the porcupine family,' ' in the hereditary nature of complexion,'... | |
 | George Combe - 1841 - 140 páginas
...; and, secondly, " That changes produced Ity external causes in the appearance or constitution of I the individual are temporary ; and, in general, acquired...have no influence on the progeny." — Vol. ii. p. 538. He supports the first of these propositions hy a variety of facts occurring " in the porcupine... | |
 | Daniel Kimball Whitaker, Milton Clapp, William Gilmore Simms, James Henley Thornwell - 1846 - 558 páginas
...always modelled according to the type of the original structure of the parent." "On the other hand changes produced, by external causes, in the appearance...terminate with the individual and have no influence on the offspring." It is impossible to establish clearly a single instance of change of a white to a black... | |
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That changes produced by external causes in the appearance or constitution of the individual are temporary; and, in general, acquired characters are transient; they terminate with the individual, and have no influence on the progeny. 
