Part 1 of Essay
In 1798 Thomas Robert Malthus, a British clergyman and professor, wrote an essay showing the way to modern demography. In 1824 he wrote a shorter final version, the article on population for that year's Encyclopedia Britannica. Malthus has been criticized for his lack of scientific foresight—he did not foresee modern adv ....

Part 2 of Essay
.... counts were available to subtract from natural rates of population growth, thus revealing net reproductive growth. Malthus observed that under such ideal conditions, during each 25 years the human population tends to double. So if world population is represented by 1, then after each 25 years it would be 2, 4, 8, 16, 32 and so on, provided there were no limits on such "natural" rates of population increase. Food. To learn how fast people might produce food, Malthus examined agriculture in several co ....