C 570 ) 
Atque hxc eft partium hujus animalis brevis quaedam 
enarrario ; earum vero u(us (exceptis branchiis (puriis) 
exhibere fuper vacaneum eft,fi quidcm exanalogi^ cum re- 
liquis id genus animallbus, a me publicatis, tacile intel- 
ligi atque explanari poffirit. 
aaa OS c abut que. Ih, meconiuYA aterrimum, c. cor pront 
fuhter memiranam latitat^ dd, pericardium^ an vejjca 
urinaria rhomloidos. eecee. inteftiHum re^lum pericardia 
fuper equitans, fffff* magfius mufiuliu centralis gg alius 
mufciilus laceratus teflk fort iter adherens, hhhh. branchie 
internee, i.i, uteri prolongati exitus^ duohus foramimhus 
diflintlus tanquam in androgynis, kk, uteri pars fuperior 
alhida. 1, L uteri pars inferior crocea, m. tn. m. m, m, 
lumlus variegatus five mufculus retiarius fecundus. 
IV. A Letter from Mr. Halley at Chefter, 
giiJivg an Account of an extraordina' 
ry Hail in thefe Parts, on the 3 pth of April 
laH. 
SIR, 
1 Promifed Sir John Hoikyns laft Week, to fend the So- 
I ciety ao Account of a very extraordinary Hail, that 
fell in thefe Parts on the z^ih. of April laft, fince which 
I have farther enquired into the Circumftances of it, 
in order to make the R^ation as exaft as I might. The 
Vapour that difpofed the Aqueous Parts thus to congeal 
€ame with a South- Weft Wind out of Carnarvan-jhire, 
pafling 
