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T 29 J

ſfons, it will be a work of time, before a complete ſyſtem can be deciſively aſcertained. By a particular operation alſo, he can make a dormant bud grow, where none other- wiſe would have appeared; and has carried his experiments fo far, as to make trees grow thicker above than below, inverting thus the natural order.

To procure turf, in which heath has grown, for his green and hot-houfe plants, Mr. Hunter found was not only expenſive, but, what was ſtill more diſagreeable, he was laid under obligations to others for liberty to cut it off their grounds; he therefore began to conſider, that as this turf was no other than the roots of vegetables rotted, ſomething elſe might be fubſtituted, which would anſwer equally well for raifing his plants:— oak-bark naturally occurred to him; and for a trial he cauſed a quantity of it, after having ſerved the purpoſes of the hot-houſe, to be buried, in this exhauſted ſtate, in the earth for upward's of eight years, when it was taken up, and being uſed in place of the turf, he found it anfwer in every reſpect as well, and continues to uſe nothing elſe.

The variety of birds and beaſts to be met with at Earl's Court, is matter of great entertainment In the fame ground you are furprized to find ſo many living animals, in one herd, from the moſt oppoſite parts of the habitable globe. Buffaloes, rams, and ſheep from Turkey, and a ſhawl-goat from the Eaſt Indies, are among the moſt remarkable of thoſe that meet the eye; and as they feed together in the greateſt harmony, it is natural to enquire, what means are taken, to make them ſo familiar and well acquainted with each other. Mr. Hunter told me, that when he has a ſtranger to introduce, he does it by ordering the whole herd to be taken to a ſtrange place, either a field, an empty ſtable, or any other large out-houſe, with which they are

all

For remarks and additional obſervations.