12. That the probable reafoDj why Brothers, or Sifters, or 
Twins, thac are far diilanc from oneanother, not fe idem fail fick 
of the fiiia' I pox ac the fame time, may be drawn from the retention 
of themenftrual blood fermenting and thence breaking out, at the 
fame time in both 3 /».105. 
13. Obfervations about the generationof Frogs^ madeby put- 
ting up Frog fpawn in a glar,and fliifring the water every day^aiid 
fo keeping It expofed to the Sun in the Spring 3 together wich a 
remark concerning the probability of Frogs being bred in the bel- 
lies of men after the like manner ; touching which here is alledged 
a ftrange example of a Serving-maid, that voided at the mouth two 
great Toads, and four fmall ones, and two fmall Lizards, all alivej 
p. ro8. 
14. A Method for attaining the Arc of Ptyfick in a fhort time, 
prefcribed by the Author of thefe Colleflions, p, 122. 
15. Of a certain and plain remedy for the Colick, being the 
chawed Root of an herb that grows in the mofl: Northern parts of 
lS[omAy\ czWtAN^fM^ and there ufed with excellent fuccefs by 
thofethat work in Mines. This root is ^ . „ , , , 
\ r . ^\ ^ ix ^ n.- This Root ihoiild be 
faid not to be unpieafan^ to the tait^tamng further irquire-i after, and 
at firft like aflat Reddifh, and af:erwards brought over bj rhofethat 
approaching to the taft of jlngelm 5 railm'.o Mr^iv. 
/>. 124. 
16. Of a kind of Grafs, ca-Ied Offifragtm, growing in Norway^ 
and comming forth before ali other grafs,which being earen by their 
Catle, emaciates them, and makes them fick, and their back-bones 
protuberant, and their legs and all rheir bones fo weak, that they 
can hardly go : Which is fuppofed to proceed from fbmc M^rcu^ 
rial or other maligne fteams that get into thi? grafs, and, that being 
eaten,affedt the Nerves. TheXIountry-people cure it with giving 
to fuch Catle dryed bones broken into fmal! pieces, which the Ca- 
tie very greedily devour, having firft ground it fmall between their 
teeth 5 whereupon follows a falivation, that perfedlly cures them^ 
p. 126, (^c. 
17. Obfervations about the jnotion of the He'art, the Auricles 
thereof, and the Vem cava, drawn from thediffeftion of divers A-' 
nimals, performed by D^Stemi^ho thence inferrs, i.that the inter- 
mitted motion of the Heart taken out of thofe creatures returns 
uponany vellicationj made either by Tome folid body, as a pin*, 
