The main currents of zoölogy . FIG. 9.—SIR FRANCIS GALTON(1822-1911) FIG. 10.—GREGOR MENDEL (1822-1884) OUTSTANDING BIOLOGICAL ADVANCES 37 on the coat of certain hounds, investigated by statis-tical methods the inheritance of stature and of geniusin human families, etc. He was led by his observa-tions to formulate a law of ancestral inheritancewhich received its clearest expression in his book,Natural Inheritance, published in 1889. He was so deeply interested in Eugenics—theinvestigation of the conditions that improve, orimpair, the races of animals—that he is to be re-membered as the founder


The main currents of zoölogy . FIG. 9.—SIR FRANCIS GALTON(1822-1911) FIG. 10.—GREGOR MENDEL (1822-1884) OUTSTANDING BIOLOGICAL ADVANCES 37 on the coat of certain hounds, investigated by statis-tical methods the inheritance of stature and of geniusin human families, etc. He was led by his observa-tions to formulate a law of ancestral inheritancewhich received its clearest expression in his book,Natural Inheritance, published in 1889. He was so deeply interested in Eugenics—theinvestigation of the conditions that improve, orimpair, the races of animals—that he is to be re-membered as the founder of that branch of biologicalknowledge. Mendel.—The earliest experimental investiga-tions of heredity were conducted with plants, andthe first epoch-making results were those of GregorMendel (1822-1884) (Fig. 10), a monk and laterabbot, of an Augustinian monastery at Brimn,Austria. In the garden of the monastery, for eightyears before publishing his results, he made experi-ments on the inheritance of individual (or u


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