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Select a position for primary signal and proceed to erect one of 4 X 4 lumber strongly stayed and anchored.  Height as follows
Top of staff -                      ft -
First crosspiece                    4
Second " [[ditto for: crosspiece]]  4
Notch on staff                      6.6 in
Mean sea level                     10.7 
                           [[line indicating sum]]
                                   25 feet 1 in.
Heights measured with Casellas altazimuth.
Measure off a line very carefully with Chesterman's steel tapes & find that at 200 ft the space between the upper & lower horizontal wires of Theodolite No. 97 covers a space of sixty divisions on telemeter no. 97.
Go to head of spit and select a place for a second primary station to make the other end of the baseline