IL A Letter fr m AfrSimiiel Dale to AfrEdv ard 
Lhwydj Keeper of the Aflimolcan ^pofttory in 
Oxford, concerning Harwich Clijf^ and the Fojfil 
Shells there ^ 
Brajfttree, Feb, IJO?- 
SIR, 
^ff^Hat I have been folong before I anfwer'd your kind 
Letters, I (hall only offer one reafon in excufe, 
which is my being defirous of making another Tour to 
Hm-mch^ &c. before I wrote, that I might accompany 
this with fome Foffils, and make my obfervations more 
perfeii: The account therefore > ou defire, take as fol- 
lows. ^UTf< 
Maf:wkh C\\S. is a fort of Prommtory, which divides 
Orml H/imn from the JEjimrtum contained between that 
and Walton Naje 5 it is fcituate on the Southern part of 
the Town, about a quarter of a mile diftant or not fo 
much, and contains many acres of Land. The height of 
it from the Strand or Beach to the top, where its higheft 
is 40 or 50 foot. pAt the bottom of this CliflF, 
there is a Stratum of Clay about a foot thick, which is 
fucceeded by another of Stone for a foot more 5 in this 
5'^r^^//jR/ of Stone are imbedded divers Shells (though but 
thinly) as well of the TurUnaf as Bivalve kind, and 
alfo pieces of Wood and Sticks, as you may obferve 
by the Fragments thereof, which I have fent you, 
Ove/this are divers Strata of blueifh Clay, of which 
you have alfo a Sample about the height of 20 foot or 
more 5 this Clay bath Pyrites or Copperas Stones 
{ticking 
