dap. 24. ^ Tret'.ife of B O D I E 5. 275 



power to obfervc in them the courfo of nature every day and elevens, and 



r" T i TT j LT- r L- */! j- the gcncracioti 



houre. Sir John Heydon,the Lieutenant or his Majcfties ordi- of oeher ami- 

 nance ( that generous and knowing Gentleman; and centum- mals * 

 mate fouldier both in theory and praftife) was the firft thatin- 

 ftrufted me how to do this, by means of a furnace fb made as 

 to imitate the warmth of a fitting hcnnc. In which you may 

 lay fevcrall cggcs to hatch ; and by breaking them at fevcrall 

 ages you may diftin&ly obfcrve every houreJy mutation in 

 them, ifyou pleafe. The firft will be, that on one fide you (hall 

 find a great rcfplendcnt clearneffe in the white. Afcer a while, 

 a little fpot of red matter like bloud, will appear in the midft 

 of that clearnefle fattened to the yolk: which will have a moti- 

 on of opening and fliuttino; fo as fometimes you will fee i:, and 

 ftraight again it will vanifh from your fight; and indeed at the 

 firft it is fo little, that you cannot fee it? but by the motion of it; 

 for at every pulfe,as it openeth, you may fee it, and immediately 

 agiin, it fhuttcth in fuch fort, as it is not to bedifcerned. From 

 this red fpeck, after a while there will ftream out, a number of 

 little ( almoft imperceptible) red veins. At the end of fome of 

 which, in time there will be gathered together, a knot of mat- 

 ter which by little and little will take the form of a head; and 

 you will ere long begin to difcern eyes and a beak in k. All 

 this while the firft red fpot of bloud, groweth bigger and fo- 

 lider : till at the length, it becometh a flefhy fubftance; and by 

 its figure, may eafily be difcerned to be the heart : which as yet 

 hath no other enclofure but the fubftance of the egge. But by 

 little and little the reft of the body of an animal is framed out 

 of thofe red veins which ftream out all about from the heart. 

 And in procefTe of time, that body inclofcth the heart within it 

 by the cheft, which groweth over on both fides, and in the end 

 meeteth, and clofeth it fclf faft together. After which this little 

 creature foon filleth the (hell, by converting into feverall parts 

 of it fclf all the fubftance of the egge. And then growing wea- 

 ry of Co ftraight an habitation, it breaketh prifbn, and comech 

 out, a perfectly formed chicken. 



In like manner: in other creatures; which in latine are cal- 

 led Vivipar* (becaufc their young ones are quick in their mo- 

 thers wombe) we have, by the relation of that learned and cx- 



S a a& 



