< 766 ) 
Stholmm gentrde. 
Si cui numeri minus accuraci videantur, qui rparfim 
Chara( 3 eribus fpeciofis apponuntur, poterit illc facili o- 
pera, inventis per experimenta numeris qui propius ad 
verum accedanr, mocuum exempla fupra pofica, vel Pro- 
pofitionum ipfarum vel Corollariorum ope, corrigere. 
Ignofcat aucem nobis Ledor ingenuus, fi per viam ince- 
dentibus nullis prsecedentium veftigiis triram, adeoquc 
Erroribus in omnes partes opportunam, Human! all- 
quid forte acciderit. 
Damus h*nc venum^ p^timufqut vkiffim. 
IV. An Account of the Shilling of three Oaks inta. 
the Groundy at Manington in the County 0/ Nor- 
folk, Communicated by Peter Le Neve, 
Norroy ^ng at Arms^ and. Fellow Roy- 
al Society, 
O N Taefday July the 2,3/i of the laft Year, 1717, iir 
the Grounds, and near the Seat of Sir Charier 
FottSf Baronet, in the County of Morfolk, and Parilh 
of Man'mgtony (which lies about mid- way between the 
Market . Towns of Holt zwd Ayljham, and about (even 
Miles from theCoaft nczr Cromer daytime, to 
the great allonifliment of thole that were prefent ; firfl:^ 
one fingle Oak, WMch the Roots and Ground about it, 
was feen to fubfide and fink into the Earth, and not 
long after, at about 40 Yards diftance, two other Oaks 
that were contiguous, funk after the fame manner, into 
a much larger Pit ; being about 3 3 Foot Diameter, 
whereas the former is not fully 18. Theft, as they 
funk, fell a-crofs, fo that obftruding each other, only 
th« 
