Changed "touchneedles" to "touch-needles" in footnote 37 on page 253: "detailed account of touch-needles."
The reference to page 259 in footnote 39 on page 253 does not seem to make sense, but was not changed. Perhaps the reference should be to [footnote 27 on page 242].
In the table on page 257, the entries for the 20th and 21st needles do not add up, because the entry for the number of sextulae of copper belongs in the 21st needle, not the 20th. This was corrected. However, there are other errors in this table, which are not so obvious and were not corrected. In particular, the entries for the 22nd, 28th and 31st needles do not add correctly.
In the table on page 258, the number for the siliquae of copper was sometimes in the sextulae column. These were corrected. The affected lines were the ones for needles 13, 22 and 24. There is some other error (uncorrected) for the 17th needle; probably it should have another sextula of silver.
Filled in the missing "4" in the line for the 8th needle in the table on page 260.
Changed "52" to "25" in the line for the 3rd weight in the table for the "greater" weights on page 261.
Changed "stele" to "stelae" on page 279: "Certain stelae."
Changed "hanging-wall" to "hangingwall" on page 279: "the hangingwall rock;" and on page 292: "from the hangingwall."
Changed "lead" to "led" in the footnote on page 281: "led through a series."
Changed "Humpfrey" to "Humphrey" in the footnote on page 283: "William Humphrey."