he performs in fach a manner , that he onely relates 
the more rare particulars ^ wherein the F^tnfs do 
differ from adult Bodies^ or he in the Dodrine of the 
Bones of F^tufs from other Authors, or which being 
un-obferved ot others , he hath obferved more ac- 
curately 5 now and then alfo confirming^ what o- 
thers y by reafon of the odnefs of the thing , yet 
doubted of In (hoft, 4ie deduces the increafe of the 
Bones through their feveral intervals of Times, and 
gives an accompt^ How they are conftituted in the 
firft two Monbths , in which there hardly appeareth 
^ny thing of Bones diftinguifhable , then what of 
them, about the Third, fourth, and the reft of the 
Moileths, is ordinarily changed^ added, or taken a- 
way, at leaft in the Fc^tufs of thefe Climats. The 
fum ij^jThat there is a Tranfmigration of Membranous 
parts into Cartilagineous, and from them into Bony 
ones -5 performed by Nature with fuch filent fteps, 
that the moft quick-fighted, and the moft patient 
Eye fliall never fee it doing, though it may evidently 
fee it done. 
» 
E RRAT A in Numb.'^l. 
PAg.1062, I.I. T. Durtvphh, p. 10^4. I.4. r, tw9 pounds fmrmncesand An hdfi 
ibid. I. ult, r, or chiefly, p. ic66. 1. 26. r. mth alomr hok^ p. 1067* in Fig. 3* 
t% TheBouk vPithi p. 1074. i. 17. r, thtougUy inmci 
Err AT A inthls Numk%^, 
P. 1075. 1.17. r. Dsnjfs's Jdvocat veryt p.ioS8; \.i6. r. mjs\ cnlomnt. 
Printed by T. N. iov john Mmin^ Printer to tha 
K&yal Society^ and are to be fold at the Belli 
a little w'lthoutTem^k-Bar. 
