Search Loci: Convergence:
The words figure and fictitious both derive from the same Latin root, fingere. Beware!
Facts from Figures.
John Eyre's The Exact Surveyor
This is the title page of John Eyre’s, The Exact Surveyor published in London in 1654. It describes procedures for the measurement of land, using the instruments of plane table, theodolite, and circumferentor.
Pages 154 and 155 of The Exact Surveyor discuss procedures for partitioning plots of land.