THEORY OF LIFE.

Bruce Herald, Volume XIII, Issue 1209, 4 June 1880, Page 6

THEORY OF LIFE.

The late Professor Farady adopted the theory that the natural age of man is 100 years. The duration of life he believed to be measured by the time of growth. In the camel the limit is reached at eight, in the horse at five, in the lion at four, in the dog at two, in the rabbit at one. The natural termination is five removes from these several points. Man being twenty years in growing lives fives times twenty years-that is, 100 ; the camel is eight years in growing, and lives forty years ; and so with other animals. The man who does not die of sickness lives everywhere from 80 to 100 years. The Professor divides life into equal halves — growth and decline — and these into infancy, youth, virility, and age. Infancy extends to the twentieth year, youth to the fiftieth, because it is in this period the tissues become firm, virility from fifty to seventy-five, during which the organism remains complete, and at seventy-five old age commences to last a longer or shorter time as the diminution of reserved forces is hastened or retarted.