The sun. [volume] (New York [N.Y.]) 1833-1916, 1884-04-27
OFFICIAL SEA STUDIES.
NOW THE GOVERNMENT WIND AND CUR
RENT CHARTS ace MADE
Les Bssks that are DissstsA h che nydrs.
spnphie OAee. aaa UssiiseA - the ohs1s 81
Charts FER she sanity sT ships.

graphic OMee, SD UsSnssA - the Shape 81
Chsrts fer she sanity sr ships.
A steamship Captain entered the United
States photographic once at the Maritime Ex.
change. He held In his hand roll which he
gave TO the Lieutenant In charge. The roll was
q special log book. which contained an account
OF tho icobergs. leo foes. and wrecks soon
the gaes. cyclones. orspouts and electrical
storms The Lieutenant filed II away. md
gave tho Captain another blank log book.
we give hundreds to vessel Captains" snid
the Lieutenant. when they are returned We
forward them to Washington whore the data
are classified SO as to represent sections Of tho
sea- From these log books are made up tho
monthly pilot maps. which serve as sailing
directories for outgoing vessels. We secure by
this means much important Information con-
corning tho ocean OF benefit to commerce."
Before the war Lieut.. NJ. r. Maury. In charge
OF the Naval Observatory and chart depot. thon
under tho Bureau Of Ordnance and Hydrog-
raphy. began to examine the logs OF vessels.
Tho results Of his observations were tho
famous wind and current charts and sailing
directions. showing tho seasons Of winds. cur.
rents. the phenomena and physical features Of
ns Srounds. meieoroIosy. and statistical data
Tho MARITIME world At once saw the value Of
are annually! s .sss$ sSslsSS TSs war ssSssS
Congress PASSED an act establishing a Hydro:
graphic Office attached to the bureau OF Nsyi-
csoes %aqSr ~ .S
| OF navigation Of the naval and mercantile
.nd ~ Thss
EThiladoip6is BsltimoIe., and San Francsco
The Information supplied from this ONCE Is
largely derived from a study Of the logs q the
es saS nd a. sEs
signal service: There are no Instruments IN
Of and the '1Ss the
the return q each vessel this Soot e given 70
vides these vessels with important charts.
srGa %sH ss s =: as aS
icsbergs and iogs; more terrible than hI ,
c6a most 81 MSA
sasadaSa nsrtSsssts 8. new 2 9srF anS dlrsssIy
foes than any ever, before recorded. Another
sections Of ne Atlantic, The more Important
of the mouth Of 81
Azores. and midway between between n ew Yorf and
aiyerpn9. There were no wrecks Ia tho Ice
spouts Tie present value Of. this ehart 10
Wits and H for 4p the
oithe former in different latitudes. Charts Of
Of lsf
Notices issued to mariners announce from
time to time the the changes IN coasts ,9 shoals,
eas IL For the
coasts Of new shoals or obstractions made By
Sane ersp9ns 81 scras reporting new
naYV more ecen d o os bam
ceased ore Commander Harrington. with the
marine. Indeed. tho Dutch cruisers, stationed
Ohlce receives information also from. foreign
cruisers and steamers. FRONT nautical maya.
T@sS ia shs form o oees s to
besides Tho Gnitsi states coast. worE has
tho Gulf Of California. tho waters Of tho ANA ma,
zon. the Bay Of SANTANA. coasts Of Mexico and
cent to Amerca. The department Is ambit ious
and Nd will undertake ne 'pncifc Ocean. wheie
' N IN. no in os ao
the Mona Passage. the Porto l!lco and San Do
mnngo COASTS. So banal la Bay in Now Granada. &c.
70 havr charts at once accurate aud conplote.
The bureau also copies charts issued By for
celved and at present Inns rcissucd some 8, 900
charts prepared by Great Britain alone. Tho
plates OF ali charts are carefully preserved and,
"a fast rs errors ara discovered. are corrected
and new charts issued.
In cooperation with the photographic ONCE
are at least twonty-threo foreign Offices OF the
charge Of tho main office at Washington, and
Lieut. j. L. Roll0r Of the New York branch. 1t
Developed until 1t has become so far perfect as
to be able to issue weekly wind and current
cllArta Ruryey the Ocaanio StrAnmA fnyaStiHute
the accentricities OF iceberrs' dstermine the
contours OF ocean beds. their character and
Inhabitants. and have tho facilities for noting
all oceanic phenomena.