. Intermarriage; or, The mode in which and the causes why, beauty, health and intellect, result from certain unions, and deformity, disease and insanity from others [electronic resource]: demonstrated by delineation of the structure and forms, and descriptions of the functions and capacities, which each parent, in every pair, bestows on children-in conformity with certain natural laws, and by an account of corresponding effects in the breeding of animals, with eight illustrative drawings. LAW OF IN-AND-IN BREEDING. 207 young females bred, well enough, whilst young, atleast. Now, as no being ca


. Intermarriage; or, The mode in which and the causes why, beauty, health and intellect, result from certain unions, and deformity, disease and insanity from others [electronic resource]: demonstrated by delineation of the structure and forms, and descriptions of the functions and capacities, which each parent, in every pair, bestows on children-in conformity with certain natural laws, and by an account of corresponding effects in the breeding of animals, with eight illustrative drawings. LAW OF IN-AND-IN BREEDING. 207 young females bred, well enough, whilst young, atleast. Now, as no being can desire that of which it is al-ready in possession,—as, in animals bred in-and-in,there is little or no difference, little or nothing to bedesired,—as no being can feel sexual excitement towards itself, and little toward that which is like itself,—as organs unexcited do not act,—it is not to bewondered that, in in-an-d-in, the male no longerstamps his voluntary and ocomotive systems uponthe progeny. In mentioning to Mr. Nash (the intelligent dealerin birds already spoken of as to crossing,) the circum-stances, that even in crossing, a feeble male lost thepower of giving form to the progeny which was thusimparted by the female, and that Sir John Sebrighthad observed the loss of generative power in breedingin-and-in; and, on further stating to him my expecta-tion that, in progeny produced by breeding in-and-in,the male chiefly would be debilitated, because, in hisvigour, he


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Keywords: ., bo, bookcentury1800, booksubjectmarriage, booksubjectreproduction