Variants, or, more probably, as emendations corresponding to the errata or corrigenda of a modern printed book.
Pain (1725), which he recognized as one of the great errata of his life.
He was an excellent compositor and pressman; his workmanship, clear impressions, black ink and comparative freedom from errata did much to get him the public printing in Pennsylvania and New Jersey, and the printing of the paper money a and other public matters in Delaware.
The last errata came just in time to be inserted.
John Thomson of Greenock (1782-1855) made an independent calculation of logarithms of numbers up to 120,000 to 12 places of decimals, and his table has been used to verify the errata already found in Vlacq and Briggs by Lefort (see Monthly Not.