1868 Manual
I??ve been reading the 1868 Manual which is sort of a how to survey in the PLSS not just for Government Surveyors, but also County and Private Surveyors who had to fill in the missing pieces.
it??s enlightening.
It says subdivisional lines run all the way across the section without making a distinction between center lines and 1/16th lines. This implies no bearing break at the center line crossings. Maybe since it??s all simple squares they thought the difference would be negligible. At least this is the way I read it.
Also restoring lost interior section corners seems to only involve proportioning north-south lines. The text is somewhat confusing but that??s what it looks like. They don??t seem to care about the east-west lines.
They also have simple calculation rules of thumb. For example, say you run a 40 chain random line and get a falling of 35 links. 35 minus 1/7th of 35 is 30?? correction. If you go 80 chains just halve your falling so in the case of 70 links falling, divide in half is 35 minus 5 (1/7th) is 30?? correction.
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