And scroll down to the end (it's alphabetical) and you will find several
manuals. The 1815 "complete system" one has an index at the end, which will
help you locate figures quickly. Use the "full text"
version to find the index, then backtrack and select the "page image viewer"
version and plug in the page number of the figure you want.
(Some figures cross multiple pages as he spells out each step.)
The figures are pretty much identical across all his manuals, although the
explanations grow more elaborate with time.