The Law of Population: A Treatise, in Six Books; in Disproof of the Superfecundity of Human Beings, and Developing of the Real Principle of Their Increase, Том 2J. Murray, 1830 - 690 стор. |
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Сторінка 11
... give us for the year 127 , 8601 persons , but the number in the table is 8368 : two years further , and the 18.8 found in the year 14 , when doubled nine times , amounts to 9625 ; but in the year 129 , 9374 only appear . Again , in the ...
... give us for the year 127 , 8601 persons , but the number in the table is 8368 : two years further , and the 18.8 found in the year 14 , when doubled nine times , amounts to 9625 ; but in the year 129 , 9374 only appear . Again , in the ...
Сторінка 15
... give us for the year 127 , 8601 persons , but the number in the table is 8368 : two years further , and the 18.8 found in the year 14 , when doubled nine times , amounts to 9625 ; but in the year 129 , 9374 only appear . Again , in the ...
... give us for the year 127 , 8601 persons , but the number in the table is 8368 : two years further , and the 18.8 found in the year 14 , when doubled nine times , amounts to 9625 ; but in the year 129 , 9374 only appear . Again , in the ...
Сторінка 30
... give three - fourths of them as producing their first child at the average of one year after marriage . Second , the interval of time at which the fruitful couples produce their children , calculated from the period of their marriage to ...
... give three - fourths of them as producing their first child at the average of one year after marriage . Second , the interval of time at which the fruitful couples produce their children , calculated from the period of their marriage to ...
Сторінка 44
... give an unnatural advantage to the scheme of multi- plication put forth , and a far greater and more unrea- sonable one in making that year invariably produce a surviving and prolific birth , instead of giving it alter- nately to that ...
... give an unnatural advantage to the scheme of multi- plication put forth , and a far greater and more unrea- sonable one in making that year invariably produce a surviving and prolific birth , instead of giving it alter- nately to that ...
Сторінка 46
... give 7168 , whereas in 201 , there are 1462 only . Nay , were we to proceed upon the principle of our modern writers upon population , and , rejecting all others , calculate from the breeders only at the beginning of the term , and ...
... give 7168 , whereas in 201 , there are 1462 only . Nay , were we to proceed upon the principle of our modern writers upon population , and , rejecting all others , calculate from the breeders only at the beginning of the term , and ...
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Загальні терміни та фрази
actual adverted already American amongst amount annual births annual marriages annual number appears argument ascer assertion average calculated census centum chapter circumstances column commence compared computation connexions consequently consideration contrary deaths deductions demonstration effect emigration England entire number equal Essay on Population exhibit facts favourable fecundity females former given HUMAN DUPLICATION human increase inhabitants instance involuntary celibacy lation latter law of Nature law of population least less males Malthus Malthus's mankind Mean Number method nexions Number in existence number of marriages observed operation popu possible preceding table present prevails preventive check principle of population procreation prolificness of marriages proof prove question radix rate of increase reference regarding registers render respects riages sexes shew shewn Sir William Petty square mile supposed suppositions surviving Susmilch Sweden take place term theory tion Total Number truth weddings whole number widowers writers
Популярні уривки
Сторінка 616 - Yea, the stork in the heaven knoweth her appointed times ; and the turtle, and the crane, and the swallow, observe the time of their coming; but my people know not the judgment of the LORD.
Сторінка 340 - No one fact relative to the human species is more clearly ascertained, whether by general observation or actual proof, than that their fecundity varies in different communities and countries. The principle which effects this variation, without the necessity of those cruel and unnatural expedients so frequently adverted to, constitutes what I presume to call THE LAW OF POPULATION ; and that law may be thus briefly enunciated: — " THE PROLIFICNESS OF HUMAN BEINGS, OTHERWISE SIMILARLY CIRCUMSTANCED,...
Сторінка 645 - And there went forth a wind from the LORD, and brought quails from the sea, and let them fall by the camp, as it were a day's journey on this side, and as it were a day's journey on the other side, round about the camp, and as it were two cubits high upon the face of the earth.
Сторінка 617 - No flocks that range the valley free To slaughter I condemn; Taught by that Power that pities me, I learn to pity them. "But from the mountain's grassy side A guiltless feast I bring; A scrip with herbs and fruits supplied, And water from the spring. "Then, pilgrim, turn, thy cares forego; All earth-born cares are wrong; Man wants but little here below, Nor wants that little long.
Сторінка 625 - For, the minute medusae apparently afford nourishment to the sepiae, actiniae, cancri, helices, and other genera of Mollusca and Aptera, so abundant in the Greenland Sea, while these latter constitute the food of several of the whale tribe inhabiting the same" region ; thus producing a dependant chain of animal life, one particular link of which being destroyed, the whole must necessarily perish.
Сторінка 656 - Spire to heaven," are seen rising as far as the eye can stretch, and crown the happy prospect with the proof that mankind are neither insensate nor ungrateful ; that they know who it is that " gives them rain and fruitful seasons, filling their hearts with food and gladness.
Сторінка 41 - But, to be perfectly sure that we are far within the truth, we will take the slowest of these rates of increase, a rate in which all concurring testimonies agree, and which has been repeatedly ascertained to be from procreation only. It may safely be pronounced, therefore, that population, when unchecked, goes on doubling itself every twenty-five years, or increases in a geometrical ratio.
Сторінка 21 - Hence marriages in America are more general, and more generally early than in Europe. And if it is reckoned there, that there is but one marriage per annum among one hundred persons, perhaps we may here reckon two ; and if in Europe they have but four births to a marriage (many of their marriages being late), we may here reckon eight, of which, if...
Сторінка 601 - Through the animal and vegetable kingdoms Nature has scattered the seeds of life abroad with the most profuse and liberal hand; but has been comparatively sparing in the room and the nourishment necessary to rear them.
Сторінка 214 - ... and by an increase in the burials ; therefore by a decrease in the excess of the births above the deaths. Thus it appears, that an increase in the quantity of food, or in the facility...