“ Whether by frequently transfusing into the same Dog, the blood of some Animal of another Species, something further, and more tending to some degrees of a change of Species, may be effected, at least in Animals near of Kin ”

“ He supposes for certain, that the swiftness of the Motion of heavy bodies doth still increase in their descent; to confirm which principle, he affirms to have experimented, That, if you let fall a Ball into one of the Scales of a Ballance, according to the proportion of the height, it falls from, it raiseth different weights in the other Scale, For example, A Wooden Ball, of 11/2 ounce, falling from a height of 35 inches, raiseth a weight of 5. ”

“ He, for confirmation thereof, alledges Examples of several Persons well known to him (himself also having been an Eye-witness to some such Experiments) who have frequently swallow'd Spiders, even of the rankest kind, without any more harm than happens to Hens, Robin-red-breasts, and other Birds, who make Spiders their daily Commons. And having made mention of some men, that eat even Toads, he adds, that though a Toad be not a Poyson to us in the whole ”

“ As to Physicks, there occur chiefly two Questions, learnedly treated of in this Volume, though not without some heat between M. Des-Cartes and M. Roberval. The one is, touching the Vibrations of Bodies suspended in the Air, and their Center of Agitation: about which, there is also a Letter inserted of M. Des-Cartes to that late Noble and Learned-English Knight, Sir Charles Cavendish. ”

“ But, suppose one could have a Quadrant of this bigness, who can assure himself, that dividing it into 324000. parts (for so many seconds there are in 90. Degrees) either in placing it, or in observing, he shall not mistake the thickness of a single thred of Silk: He adds, that Great Instruments have their defects, as the small ones: For in those, that are Movable, if the thred, on which the Lead hangs, is any thing big, it cannot exactly mark Seconds; if it be very fine, it breaks ”

“ Tryals proposed by Mr. Boyle to Dr. Lower, to be made by him, for the improvement of Transfusing Blood out of one live Animal into another; promised Num. 20. p. 357.
THe following Quæries and Tryals were written long since, and read about a Moneth ago in the R. Society, and do now come forth against the Authors in ntion, at the earnest desire of some Learned Persons, and particularly of the worthy Doctor, to whom they were addressed ”

“ And this Advertisement, he desires may be applied to those other Papers of his, that consist of Quæries or proposed Tryals.
The Quæries themseves follow.
1. Whether by this way of Transfusing Blood, the disposition of Individual Animals of the same kind, may not be much altered; (As whether a fierce Dog, by being often quite new stocked with the blood of a cowardly Dog, may not become more tame; & vice versa, &c.?)
2. Whether immediately upon the unbinding of a Dog, replenisht with adventitious blood, he will know and fawn upon his Master ”