The Biology of Population GrowthA.A. Knopf, 1925 - 260 pages |
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Common terms and phrases
Age group age period Algerian population Appendix Table Arab Berbers biological birds birth control birth rate capita wealth census census counts cent chapter cities correlation between birth cycle of growth death-rate density of population Drosophila melanogaster England and Wales equation xix equation xviii European population evidence experiment fact factors female femmes fertility figures France French FREQUENCY PER MONTH half-pint bottles human population imagoes increase indicated indigenous native population Kabyles Kabylia larvae logistic curve marriage married mated mean Mussulman number of flies pens percentage persons per acre population growth Population in millions population of Algeria present cycle probably public health pupae rate of reproduction RAYMOND PEARL regarding Registration Area Root mean square says sex activity sexual activity smooth curve specific death rates statistical table is discussed Territoires du Nord Territoires du Sud tion total population Tunisia United upper asymptote wild type women yeast
Popular passages
Page 210 - I think I may fairly make two postulata. First, That food is necessary to the existence of man. Secondly, That the passion between the sexes is necessary, and will remain nearly in its present state.
Page 136 - It is at once apparent from this table that there is a profound and regular change in the rate of reproduction of Drosophila, under the conditions of these experiments, with increasing density of population. The rate of reproduction per mated female per day declines as density of population increases, at first extremely rapidly and then more and more slowly at higher densities.
Page viii - The department of medical zoology of the School of Hygiene and Public Health of the Johns Hopkins University...
Page 15 - The Importation of Foreigners into a Country, that has as many Inhabitants as the present Employments and Provisions for Subsistence will bear...
Page 22 - In the matter of population growth there not only " ought to be a law " but six years of research has plainly shown that there is one. This is not the place for recondite statements in mathematical shorthand, but fortunately it is possible to state the law of population growth in plain language, without resort to mathematical symbols. It may be put in this way: Growth occurs in cycles. Within one and the same cycle, and in a spatially limited area or universe, growth in the first half of the cycle...
Page 112 - Si vos femmes commettent l'action infâme*, appelez quatre témoins. Si leurs témoignages se réunissent contre elles, enfermez-les dans des maisons jusqu'à ce que la mort les enlève ou que Dieu leur procure quelque moyen de salut.
Page 15 - ... have more industry and frugality than the natives, and then they will provide more Subsistence, and increase in the country; but they will gradually eat the natives out. Nor is it necessary to bring in foreigners to fill up any occasional vacancy in a country; for such vacancy (if the Laws are good, § 14, 16) will soon be filled by natural generation.
Page 210 - London, 1928, p. 54. people on this globe which the biological law of population growth makes extremely probable, lead us to view-with-alarm ? It seems to me that if we so conclude, we ought equally to be concerned about the orderly growth of any baby into man- or womanhood.
Page 22 - ... until the mid-point of the cycle is reached. After that point the increment per unit of time becomes steadily smaller until the end of the cycle. In a spatially limited universe the amount of increase which occurs in any particular unit of time, at any point of the single cycle of growth, is proportional to two things, viz: (a) the absolute size already attained at the beginning of the unit interval under consideration, and (b) the amount still unused or unexpended in the given universe (or area)...
Page 238 - Rapport fait au nom de la Commission chargée d'examiner les modifications à introduire dans la législation et dans l'organisation des divers services de l'Algérie.