It has turned out that the earlier classifications, guided by general resemblances, though containing much truth, and though very useful provisionally, were yet in many cases radically wrong; and that the true affinities of organisms, and the true homologies of their parts, are to be made out only by examining their hidden structures.
"Essays: Scientific, Political, & Speculative, Vol. I"
Herbert Spencer
homologies of the Radiates, -illustrated by forty-six plates.
"Louis Agassiz: His Life and Correspondence"
Louis Agassiz
But once a tentative explanation of one group of phenomena has been made it is the method of science no less than the common tendency of the human mind to buttress this theory with analogies and fancied homologies.
"The Evolution of the Dragon"
G. Elliot Smith