Henry C. Adams

Capitolo 15

the craft is sheltered in a good sunk above mark of water stop to this way
a depth that his fund is under the water low and lower
levels, and a small pipe is staid then under the beach from the
well to, and under, low water, so that water's stands
continually in the good to the same level as the sea.

The indicator of level should be sheltered on carriers, approximately 3 fts 6 in from the
demolishes, in a wood shed, similar to the box of an overseer, but
provided that with a door, it erected on the bench or the other place it mended
above for the observations. A hole has to be formed in the floor
and a galvanized iron or pipe of lumber approximately 10 in to straight angle
arriving to under low level of water it mended under, so that
when the craft is suspended from the tool of incision it
it will hang down vertically the centre of the pipe. The shed
and pipe has to surely be sheltered clearly to withstand wind and
whence. The inside of the pipe has to be free from all the projections
or afloat matter of which it would interfere with the movements
the craft, the fund should be closed, and approximately four lins
holes of diameter should cleanly be formed in the sides next to
the fund for the entry and exit of the water. With a
greater number of holes the action of wave will provoke the diagram
very indistinct being, and it probably conducts to the incorrectness in
determining the actual levels of the tides;  and if the pipe is
notably greater than the craft, the second will swing
sideways and it gives incorrect readings.


A mark of bench to of the height note above of datum of artillery owes
has put above in the hut, preferably on the top of the pipe. To
every visit the observer should throw down the thread of craft a short
you outdistance, and allows him to slowly return, while doing so a vertical
you brand on the diagram, and you/he/she should measure then the actual level
of the water's surface under the mark of bench in the hut, this way
what water's line on the chart can have reported him to artillery
datum. He should also notice the time corrected by his/her clock, this way