(5 1 9) 
Forces of Nature, and by fortifying in us the Spring of moti- 
on and life: In a word, by exciting that Principle of continu- 
al Motion, which, whilft it has ftrength enough^ ftill fubdues and 
gathers to its felf whatever is proper to entertain it , and re- 
jedswhat is not fo. Eut fuch an Invention as this he feescaufe 
to efteem very difficult 5 in regard thau different Moulds can- 
not but Characterize things differentlj. Hence he proceeds to 
the Examples wherein Trans fufion hath been experimented > 
even upon Men 5 alledged in that known ingeiiious Letter ot 
Monfieur Denjs, And here he intimates , how much he was 
pleafed to learn, that, according to his Conjecture , a Moderate 
Intromiffion of Blood had well fucceeded, and the Fermentation^, 
which he forefaw would be. caufed by the c43mmixtore of twa 
Bloods , was m^ade with advantage to the Patient : ^ V Vhich he 
judges did manifeftly appear by his Bleeding at the Nofe, ( a 
• ligne of an Ebullition made in the Blood % y confiimed to him 
by this, that an expert Acquaintance of his, transfuiing a great 
quantity of Blood into feveral Doggs, obferved al way es, that 
the Receiving Doggs pifled Blood. 
And as to the other fuccefsful Experiment , made upon a 
healthy and robuft man, he notes, that he being a lufty Fellow, 
ftored with blood, and taking the Air, and working hard on the 
fame day that the tryal was made upon him, his vigorous Bloods 
Spirits, and Gonftitution , and the ftrong motion of his Hearts 
were able to convert into the fubftance of his own Blood that 
of the Lamb received ^ and to impart thereto it-s own nature, 
and to mould it into Figures futable to the pores^where it was to 
pafs, and proper to the fundtions it was to performer 
But to thefe Reflexions hefubjoyns two oi\\ti InflanceSj 6i 
an unlike fuccefs 5 whereof the one is afforded by a Man^^ the 
other by a Vogg. As to the Man-) it ought to be related before- 
hand, to prevent wonder or mifconftrudion, that his Inteftins , 
when he was opened after death, were found to be gangren d, and 
confequently , that then he appeared to have been a fubjeiSt al~ 
together unfit for this Experiment , feeing it was naturally im- 
poffible for him to live with fuch a putrefadion. But to come to 
^he tryal it felf 5 t\{\s Author faith, that Baron j^^»;;^, Son to the 
firfl Minifter of State to the King of 5«^^^^/^ , undergoing the 
Ggg 2 Ooeragi- 
