The San Francisco call., 1910-01-05
NEWS OF THE OCEAN
Notice to Mariners

Notice to Mariners
Office of u. S. Lighthouse Inspector,
Twelfth District
San Francisco. January 4.
San Francisco bay entrance, Cal.-Notice is
hereby given that San Francisco light vessel No.
40 replaced by relief light vessel No f6 Jan
uary 5. The change is temporary. The relief
light vessel shows a light and sounds signals
having the same characteristics as those of light
vessel No. 20. formerly on the station, excepting
that the light will be fixed white without eclipses
shown from three lens lanterns eneircling
the masthead at a height of 46 feet above the
water and visible II miles in clear weather
Relief light vessel No. rs is a flush deck steam
vessel, has two masts, schooner rigged. no bow
SPIRIT black smokestack, and a steam whistle
between the masts but differs from light vessel
No 20 in having all visible parts from the bow
to the middle of the foremast and from the mid
die of the mainmast aft. painted red; afNvisible
parts between the fore and main masts, includ-
ing the middle third of each lantern mast. white.
The daymarks at the mastheads have five verti-
springstay midway between the two masts, there
IS an oval daymark with one white and two red
vertical stripes. The number 'T6'' is in white
On each bow and each quarter. and in black on
each side of the springstay daymark. The word
relief is painted in large black letters on the
middle of each side
l. H. B. List of Lights. etc, Pacific Coast,
1908, p. 16 No. %.
L. il. B. List of Buoys, etc., Pacific Coast,
San Pablo bay, Cal-Notice is hereby given
that Carquinez strait light station will be es-
tablished about January 15 1910, in the struc-
ture recently erected on the northerly side OF
the entrance TO Carquinez strait and the easteriy
side of the entrance TO Napa creek, Just inside
of the long wooden dixie and about 9-16 of a mile
LOG degrees 80 minutes true (E Is mag) from
Mare island light station.
The light will be fixed red of the fourth order.
sc feet above the water, and should be visible
IS miles in clear weather, the observers eye
10 feet above the water.
The tower is a cream colored square frame
structure with white trimmings, surmounted by
black cylindrical lantern. and rises from
two and a half story dwelling and fog signal
building with white trimmings and red roofs
The tower dwelling and fog signal building are
on a pile foundation in feet OF water.
The approximate geographic position OF the
light as taken from coast and geodetie survey
chart No 5525, will be: Latitude north IS de
grees t minutes seconds. longitude west L.
degrees II minutes 35 seconds.
Carqunez strait tangent northerly side, ia
degrees 10 minutes true (E GIG magl. Mare
island Lighthouse. 2S6 degrees true wv Is 5
mag). Magazine wharf. southeasterly corner,
500 degrees 80 minutes true (NW 5-16 W mag.l :.
On the same date there will be established at
this station first class compressed air siren, to
sound thus:
Blast-3 seconds.
Silent interval-2T seconds.
Blasts seconds.
Silent interval-27 seconds.
L. H. B. List OF Lights, ETC., Pacific Coast,
1905, D. 90 No. "A.
L. H. B. List Of Buoys. etc, Pacific Coast,
1908, p. 80. By order of the lighthouse board,
". G. MILLER
Commander, U. s. N,
Inspector Twelfth Lighthouse District.