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-latitude of Cape Perpetua is
given (Coast Pilot page 127)
as 44 degrees 19' North is
that of Cape Foulweather
(see above) as 44 degrees
40, making the distance
21' latitude, or
approximately 21 nautical
miles(as the bearing is only
03' west of true north), as
given in the Notice to
Mariners.

The location & bearings of
Yaquina & Cape Foulweather
L Ho. by careful comparison
& weighing of conflicting
authorities giving
approximate locations &
bearings, has occasioned
much perplexity, with
varying results . C S Charts
just received) gives latitude
of Yaquina L.H. about
44 degrees 40'(30") instead of
44 degrees 36'(35"), which
latter is given in L.H. List
of 1872, and is correct,
provided the Coast Pilot
correctly locates Cape
Fowlweather (Yaquina
Point). I see that in the
corrected List for Jany 1873,
other authorities were
allowed some weight, and the
magnetic bearing of
Fowlweather L H from
Yaquina L H was given by as
N NW 1/2W, approaching
more nearly to the bearing
in your letter, than the bearing
based upon the Coast Pilot does.
On the Whole, as you doubtless
have better authority as so this
bearing than I am in
possession of, it would seem
best to change this bearing
in the Notice to Mariners to
S.E. by S. 1/2S. as given in
your letter of 7" inst. In
L.H. List of 1873 bearing of
Fowlweather from Yaquina
should then be changed to
N.W. by N.1/2N. I should
think other points should
be retained as given in
Notice to Mariners, until you
have better authority than
the Coast Pilot of 1869.

Your obedient servant

Henry M. Roberts
Maj. of Eng'rs & L. H. Eng'r
Thirteenth District

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