( M9i ) 
Part of the hinder foot of the young Frog viewed with 
the fame Microfcope when liv3ng ^ whereby the different 
magnitude of the^exttetnities of the Arteries and Veins '6f 
the Lungs in the firft ffguue, and in this exprefrat C C is 
very evident 5 The fonner being capable of admitting at 
leaft three Globules of Blood to pafs abreaft, whereas clie 
extremities of the Arteries and Veins in the Feet acmit of 
one Globule of the Blood only to pafs before the other. 
A A The Trmks of the Arteries. • , . . ^\ \ 
B B Thofe of the Veins lying by the fide bf the Toes. ' 
G C Their Extremities continued with each othcr^ in- the 
tranfparent Membrane between the Frogs Toes, 
a: a T4v^ of ^the Frog's Toes, i ^ : 
i%3:;and4« 
The extremities of the Arteries and Veins of a Frogs 
£ungs, vje>^e<i with ^^l?^i4$Jj^^H?^5^. the lame Mic^rblcope, 
imdQ by JaSrts Witpff. 
A A The Arteries. 
B B The Veins. 
G C Their conjunftions with each other, 
D XJie of the Micrqfcape. : 
Fig 5- .z^h^r^ 
One of the Bexagon Are£ of a Frog s Lungs, which were 
not fo much diftended by Inflation, as tjipfe parts of the 
Lungs reprefented in Jtbe tw o,/fprmer Fipres and 4, 
whereby the little Are£ or Cells in theInterftices>ofitbee:^- 
tremities of the Veins and Arteries appear clofer and lefs 
than in the two foregoing Figures, tho viewed by the fame 
Microfcope. A The 
