The New York herald., 1877-09-18

the charts arc in error In the OF edge OF
the bank. The variation tmagnetc) Is aes 90 nini
west, the ship bcin. at the time heading W 10 oca'
deviation was causedj north half cast The bank Is on
all sides steep. too depth of eighty iathoms bens
cora. and with occasional moss and sponge Une nun-
dred and n!ty miles Of soundings were run Iuero was
material difference in the temperature OF the "A'o'
on the bank from that not on sounding.
On finishing Hotspur Bank steered u northwest oy
westerly to parallel east and west lines IN
search OF rock reported TO be in latitude IL deg
min. south ana longitude 50 deg 10 min west, south
OF Fly Bank. (g) On bending 10 The eastward on the
first line at forty minutes past one A. 81 soundings
were taken Just before starting ahead and coral bot
tom was found at thriy-two iatboms, ana ior ABOUT
nine miles several casts OF the lead were obts'hea the
least rate being twenty fathoms While ON these
soundings the latitude found by meridian attitude
Of planet Mars TO be II deg min 80 sec soulh. Al
four A. NJ. bottom was found at 100 ialhoms; the
longitude at this time from meridian position being
80 deg. 10 min west Being IN the vicinity of the sup
posed rock OF bark Professor Aver at noon, ana tho
latitude by meridian attitude showing that We
were but one mile north OF IT'S parallel, we com
menccd running limos OF soundings 10 tue south
westward and northeastward and at iour T. II. nndng
the ship to be- by observation, IN longitude ~ deg
- sec. west ran line directly over the location
and got OF the lead al 100 iatboms but no bot
tom on tho position. The weather was very hno aud
the smooth, bat indications OF tho rock could
DO seen found
We thcn ran an castcry line Of soundipgs over the
supposed position OF Fly Bank, but no bottom WIS
obtained though casts oil tho lead wcrc obtained every
From the navigation officer OF the English corvette
Voltage | learned that that vessel had ruA over the
two soundings in sixty i've and seventy iahoms wa
ter though the chart calls Tor thirty two fathoms.
'RoDCERs' HAM,"
Alter having stecrcd tho eastward over the posi-
ton OF Fly Bank ana the weather looking as thuugn
1t might change. the commanding officer decided to
try 10 lnd tho bank oil soundines taken at twenty
minutes to two A. M. in tho latitude aud Longitude
given above from observation. Wo stcered west
southwest course after crossing tho Fly Bank to tho
east ward to the parallel II deg. 10 min. south,
having obtained latitude about halipast two A. NJ OF
August D by meridian altitude OF Mars latitude IL
h. snnfh nd fhnn nrnI In
soundnss every hour 200 iathoms and no bot
toml until eight a. NJ, when We got cast OF tho
lead in thiry-six fathoms, coral bottom. Tho ons-
tude, by Observation being 80 deg. 81 min. west;
latitude by Mars, from half-past TWO A. H.,
II deg 10 min south. Continued steering west
obtaining souudings IN seventy thrce and hitytour
athos (soundings hall hour and after getting
100 and bottom stored east northeasterly
fifteen miles, with first soundings hy iathoms, then
thirty, with coral bottom and occasional moss or
weed ondiug the line AT 200 iah ons and no bottom.
We next stored west nine miles, hnding no bottom at
1S0 100 ana l20 fathoins; then southwest ny west
three aud one-hat miles, finding no bottom ut 100
fnthons; thence south 1--WE miles, bottom at thirty
fathoms then three miles further south with no bot
tom ut 100 iathoms; cast three and orehalf miles,
bottom eighty iathoms; south Two miles, no bottom
at 10 iathoms north five miles, with bottom at thirty
five fahonns; east northcasterly thrce miles, bottom
at thirty iathoms two miles further bottom at twenty
cgh: iatEoms; northweslerly i've miles. no bottom ut
100 fathoms and then laid the course Tor Bahia
Briefly, this bank is fifteen mos long IN east north-
east direction, and ten miles north and south. It's
northeast cdge IL in latitude IL deg. min. south.
steep, too changing suddenly from twenty eight ana
thirty-twO tathoms 10 over one hundred Inc least
water is tho eastern edge-twchty- y-cisht lathoms.
The southern edge Is in latitude II deg II min south
Tho soundings are red coral with occasional moss ana
mud and sponge. rhc location is by meridian
altitude OF the sun, and eight A. NJ time sight; vara-
ton by amplitude; deg 16 min west. Its gen.
eral contour Is that of a pear Very respect
fully, G. NJ BOOK, Lieutenant and Navigator.