( 119^) 
Ome^tnm ox Mefenferj of Quadrupeds, or in t&c LlJngs of 
Frogs or Lizards when livings or after death when the' 
Blood has been retain d in their Lungs in the following 
manner. On making Incifion into the Bodies of thefe Crea- 
tures their Lungs will ftart out, and be diftended with In- 
fpircd Air 5 ou which, make what hafVe you can to pafs a 
Ligature ( u e. a Waxt Thread ) and tye it firmly toward 
the upper part of the Lobe, as near the Heart as you can : 
When the Lungs of Frogs and Lizards are dryed, thus dir 
^ The Mi- ftended, you may examine them with your Microfcope, and 
in'^&t theywm 3d, 4th, 5th and 
the Figures 6th. The firft and fecond Figures (fiew the difference in 
ind^Figurfd the magnitude of the extremities of the Veins and Arteries 
Tranfaa. No ot the Luugs, and thofe of the toot of a Frog view'd with 
s8i. The the fame Microfcope. 
manner of * 
applying the ^ 
dry'd Lungs hcr^. mentioned, is thus, Ttkc out the GlalTes in theSUder or flat prccc cF IVoiy, 
marked in the Fig. of that Tranfaftion, c. e. f» f. arid, paft in the holes f. f. puts of 
the dcy'd Lungs as. nlention*d» whether of Frogs, Toads, Snakes, Vipers, or the like Cxtrut^Sy 
* ifesit have their Lungs VcCcated as well as Vcficulatedj and by this means you may ketTp 
objcasofthe Lungs of thofe Animals always by you ; fome of which I have bad this three 
months, and are now as ^eaufiful as when firft put in ; only you are to remember to place 
the external fmooth furfacc of the Lungs toward your ObjeQ GUfs when you view it : Ln the 
fame manner, the extremities of the Blood VciTcls of any Tianfpaienc parts of Animal Bodiei 
may be csamin'd by that Microfcope. 
Hence it appears that the Communications between the 
Arteries and Veins of the Lungs are more open than thofe 
of other parts, at leaft in the Feet ot Frogs : And till it can 
be ftiewn that Melted Wax can be as- cafily injefted from 
the Arteries to the Veins of other parts in a Humane Body 
and Quadrupeds, I ftiaH Be inclin'd to think the Communi- 
cations between the Pulmonick Arteries and Veins in 
general are more open than the Arteriesand Veins of other 
parts, except the Spleen and Petik. 
This patent Communication of the Arteries with the 
Veins of the Lungs (liews how thofe Veflels tranfmit the 
Blood in equal time and quantity with the Blood that moves 
in 
