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What checks the natural tendency of each species to increase in number is most obscure. Look at the most vigorous species; by as much as it swarms in numbers, by so much will its tendency to increase be still further increased. We know not exactly what the checks are in even one single instance. Nor will this surprise any one who reflects how ignorant we are on this head, even in regard to mankind, so incomparably better known than any other animal. This subject has been ably treated by several authors, and I shall, in my future work, discuss some of the checks at considerable length, more especially in regard to the feral animals of South America. Here I will make only a few remarks, just to recall to the reader's mind some of the chief points. Eggs or very young animals seem generally to suffer most, but this is not invariably the case. With plants there is a vast destruction of seeds, but, from some observations which I have made, I believe that it is the seedlings which suffer most from germinating in ground already thickly stocked with other plants. Seedlings, also, are destroyed in vast numbers by various enemies; for instance, on a piece of ground three feet long and two wide, dug and cleared, and where there could be no choking from other plants, I marked all the seedlings of our native weeds as they came up, and out of the 357 no less than 295 were destroyed, chiefly by slugs and insects. If turf which has long been mown, and the case would be the same with turf closely browsed by quadrupeds, be let to grow, the more vigorous plants gradually kill the less vigorous, though fully grown, plants: thus out of twenty species growing on a little plot of turf (three feet by four) nine species perished from the other species being allowed to grow up freely.The amount of food for each species of course gives the extreme limit to which each can increase; but very frequently it is not the obtaining food, but the serving as prey to other animals, which determines the average numbers of a species. Thus, there seems to be little doubt that the stock of partridges, grouse, and hares on any large estate depends chiefly on the destruction of vermin. If not one head of game were shot during the next twenty years in England, and, at the same time, if no vermin were destroyed, there would, in all probability, be less game than at present, although hundreds of thousands of game animals are now annually killed. On the other hand, in some cases, as with the elephant and rhinoceros, none are destroyed by beasts of prey: even the tiger in India most rarely dares to attack a young elephant protected by its dam.
You need make no doubt, but the poore maide wept exceedingly, as shehad good occasion to doe: and albeit many times she desired mercy, andthat hee would not bee so cruell to her: yet notwithstanding, hervoyce was so broken with crying, and his impacience so extreame,that rage hindered all power of distinguishing, or knowing his wivestongue from a strangers. Having thus madly beaten her, and cut thelockes off from her head, thus he spake to her. Wicked woman, and nowife of mine, be sure I have not done with thee yet; for, although Imeane not now to beate thee any longer: I will goe to thy brethren,and they shall understand thy dishonest behaviour. Then will I bringthem home with me, and they perceiving how much thou hast abusedboth their honour and thine owne; let them deale with thee as theyfinde occasion, for thou art no more a companion for me. No sooner hadhe uttered these angry words, but hee went forth of the Chamber,bolting it fast on the outward side, as meaning to keepe her safelyinclosed, and out of the house he went alone by himselfe.
`And what more could I do if you were a man, than talk perfectly sincerely to you?'
She always felt very tender of Ermengarde, and tried not to let her feel too strongly the difference between being able to learn anything at once, and not being able to learn anything at all. As she looked at her plump face, one of her wise, old-fashioned thoughts came to her.
"As you were when you got the note?"
2、The culprit snatched up her brush, and scrambled to her feet. She caught at the coal box and simply scuttled out of the room like a frightened rabbit.
'So much for that!' he said, making as if he tossed something light into the air, with his hand. "'Why, being gone, I am a man again," like Macbeth. And now for dinner! If I have not (Macbeth-like) broken up the feast with most admired disorder, Daisy.'[回复]
'I thought,' I continued, 'Thornfield belonged to you.'国务院：新冠肺炎疫情进口物资不对美加征关税
No more was said, and I took the pen and wrote the six sorts of writing in use among the Arabs, and each sort contained an original verse or couplet, in praise of the Sultan. And not only did my handwriting completely eclipse that of the merchants, but it is hardly too much to say that none so beautiful had ever before been seen in that country. When I had ended the officials took the roll and returned to the Sultan.