[ 477 3 
Alexander, weighfng 266, which, by their weights, 
fliould be perfeft 
The diherence between the heavied and the 
lighted of thefe pieces fuppofed to be perfedt, does 
not amount to two grains in the Philippic; and a 
meaiii taken from inch a number of coins, fo 
equally fized, mud be very near their original 
dandard weight. 
In the following table, I have not inferted any 
piece, that L had reafon to believe was fenfibly de- 
ficient of its original weight. Therefore I have' 
omitted Sir John Marfham’s coin of 132 grains, 
which being deficient of the lead weight 1 have 
found in any perfedf piece, it is mod'probable it was 
a little worn. I have likewife omited three coins 
in the Pembroke colledtion, of 132 grains each, for 
the fame reafon. 
The pieces under the letter M, are from the 
Britifh Mufeum; thofe under D, from Mr. Duane’a 
Golledlion ; that marked S, Mr. Stuart’s ; G, is the 
mark for thofe mentioned by Mr. Greaves; Sn. for 
the two of Snellius ; and P, for two from the Pem- 
broke colledlion. The parts of a grain are given in'i 
decimals,-, for. the convenience of adding them.. 
