. Darwinism, medical progress and eugenics; the Cavendish lecture, 1912, an address to the medical profession. Heredity; Eugenics. THE CAVENDISH LECTURE 19 that within sixty years from 1865, namely, in 1925, we shall have reduced the death-rate by nearly 50 per cent, in this country. To this extent modern progress—chiefly medical progress—has sus- pended the actioi) of natural 175 asa 125 ao9 75. cct- fes o -§5 -so -75 -100 -las -150 -ns T^SOBOST. ROBUST SBSSiMLt HS^THT. C^uICATE. Fig. 5.—Diagram (1900 odd cases) to explain anomalous position of sons of delicate parents ; a much la
. Darwinism, medical progress and eugenics; the Cavendish lecture, 1912, an address to the medical profession. Heredity; Eugenics. THE CAVENDISH LECTURE 19 that within sixty years from 1865, namely, in 1925, we shall have reduced the death-rate by nearly 50 per cent, in this country. To this extent modern progress—chiefly medical progress—has sus- pended the actioi) of natural 175 asa 125 ao9 75. cct- fes o -§5 -so -75 -100 -las -150 -ns T^SOBOST. ROBUST SBSSiMLt HS^THT. C^uICATE. Fig. 5.—Diagram (1900 odd cases) to explain anomalous position of sons of delicate parents ; a much larger percentage of them die, and thus their health fails to be recorded. The more delicate the father the more children die. Does this suspension of natural selection really mean that more of the weaklings survive to propagate their kind ? Some light may be thrown on that point by considering the percentages of the population in 1881 and in 1901 in broad Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Pearson, Karl, 1857-1936. London, Dulau & co. , ltd.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectheredit, bookyear1912
