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fix, as well in hight as length. Below the inferior 
compartments, which are the lefs, are read the 
names of the months placed in two lines in a retro- 
grade order, fo that the month of January is the 
laft in the firft line, which bears the other five 
following months. In the fecond line are defcri- 
bed the fix other months in their natural order ; 
fo that the month of December is under January, 
and fo the months fhorter and longer, two and two, 
have one common compartment for each couple. 
Almoft on the edge of the right fide, there is the 
tail of the animal fomewhat bent ; and this performs 
the office of the gnomon. On the extremity of the 
bone, that is, of the leg, or center of the quadrant, 
there is a ring to hold the dial in an equipoife ; and 
it is fuppofed, that in that place was faftened its 
plummet, fuch as in the like dials is to fall upon the 
prefent month to determine the (hadow of the gno- 
mon upon the horary lines. It is obfervable alfo, 
that as thefe dials were deferibed upon a plane fur- 
face, according to a fixed rule, the furface of this 
metal ham being in one place concave, in another 
convex, one cannot eafily guefs what rule the work- 
man ufed to deferibe a dial of fo difficult a kind, 
upon a plane fo irregular. This dial was found the 
eleventh of this month, and was delivered to me; 
but it was not known what it was, becaufe it had a 
cover upon it, fo that the miners took it only for a 
piece of iron. My curiofity foon led me to examine 
it. I begun to difeover the fhapeof a ham, however 
I could not perfuade myfelf, that it was fo ; but af- 
terwards finding, that it was filver, and perceiving 
the lines, which form the compartments, and the 
cha- 
