Edgefield advertiser. [volume] (Edgefield, S.C.) 1836-current, 1838-10-04

6se angle which the magnetic axi.
makea5wlth the meridian.
tpxpe anglc which the magnetic meri
aiaansMakes u, with tho geographical meri
fromsf fpndon. rN>
9asAhe exact latitude of any place.
i9syihe exact longitude of any place.
Aftthese arc ascertaine,I without The nj,
OF sextnnt, or quadrant, or chronomcter: q,
celesfiN observations, OIL laml and at sea
as easHy III cloudy or dark sky as i'm the
clcafea sunshine Or starlight, and far more
accurately and unerrinely than by any me-
thods now in use.
lie Inrther represents that the variation
O.! inc needle cannot be taken by any other
me'hod without a celestial observation; tla,
| IL cannot hc taken at sea, aven in fair wealth
ci' WIN accuracy, III consequence of the
| n0tlon oil the vessel; that on land, and in
lai: weather, 1t IS rarely taken with accura-
| cy; tnat no observation of the latitude can
NC taken at sea, or on land, without fair
weather: aud that great mistakes are usu-
ally made at sea, in calculating il; that fair
weather IS equally necessary for taking the
longitude, whether bv the chronomc,cr or
any other instruments; that attempts to deter
niine II at sea are known 10 he generally
trultlcss; and that great errors very ireuuent-
~ occur, in attempts to determine il on land
mat Tor three centuries il has been the grand
deslderatum Of tho commercial world 10
discover a certain method OF oflelerminiuo the
longitude; that for many years the Board of
Longitude, in London, offered a reward of
st2o,oOO sterling for this discovery, without
success: that board paid to the artist who
made the best chronOmeter carried ont by
Captain Parry, { 10000 sterling. and since
then has offered GS,0OO sterling to the per
son who should devise n method by which
the cir0nometer could be used at sea with
entire accuracy in discovering the lon nsitude;
and that board gave Captain Ross ESQ
s'erhnS 'or approaching SO near the north
it'a@netic-pole, as 70d. 6m. north latitude.
and 90d. west longitude, an error of :}d, 3lm.
of latitude, and of from 3,l, to 4d. of lon"i.
tudei that owing to the impossihilty Of fix
ing ships exact place at sea, hundreds Of
American vessels are annually lost; that in
1886 as reported in the public prints. more
than eight hundred were thus lost most of
them undoubtedly from this cause; that diff
cnlties constantly arise in survey of land.
iroilEthc ignorance ofihe Inv Of the varia-
nssas sas mat lsMaes se e..s are
that thesame difficulties have arisen in
tiXinglhe boundaries between the u. Sto,es
and the adjacent territories. as well rs he
tween the States; and that, owing to Il mis-
take by an engineer in determining the prc
else place of the 45th degree of latitude. n
fort was erected on the west side of AXE
Champain, at an expense of more than
half-a million Of dollars, which has since
been found To bc within The limits of Lower
Canada.
He further represents that repeated and
oirect attempts have been made, by sever
al foreigners III the city Of New York. to
possess themselves of the entire secret of his
invention and discov in order, as he
cannon doubi, to secure to themselves, if
possible, patents in Europe, and, if not. TO
gam high reward from the British Parla-
mcnt, as well rs any honor which might
accrue from the invention and discovery.
that Godfrey, ii native of PHILADELPHIA.
after having invented The quadrant. explain
ell the invention TO an Englishman, of tho
name of iladey, and disclosed to him his
design of taking on, Il patent for it in Eng
land; that iiadley anticipated him in The M :
tent and the reward. gave his nnrne to the
| instrument, claimed the invention as his
own, and transferred the honor of il, in The
view OF the world, from America to Eng
land; that. as the discoveries anil the inven
tlon, OF which he has spokc.,, are wholly
| his own, he alone is euiiled to any profit
winch may accrue from them; and that,
should they be thought to confer any hon
or, 1t Is due only to him and to the land of
| his birth.
lie further states that he has had tho
honor of explaining these discoveries, and
of exhibiting the seometcr to a considerable
NUMBER OF the members of both House, of
| congress, as he trusts to their satisfaction
anu mat he hopes to have the pleasure oI
dong the same TO the other members of the
Two houses during the present week.
lie further represents that he has com.
menced the publication of a volume. il
quarto, to explain the discoveries i'm MAG.
net'sm, rs well as the nature and use of tho
geometer' to DO accompanied with numer.
Gus plates, and attended with great expense
that the manufacture of the instrument, IN
ORDER 10 Introduce il into general use, will
require large outlay, much larger than he
Is aDie 10 meet, with no immediate returns
anu that 1t IS his purpose, ifenabled SO &c
do, To proceed to England and France. ,t
secure what he conccives to be n lust re-
ward ior the labOrs of a life so successful,
devoted to the welfare OF his country and o
mankind.
ne therefore most respectfully petition:
both Houses of Congress to give the prcmi
ses due consideration; and if the invention
and discoveries which he has rccitcd shal
appear to them of high importance and val
ue 10 tho people Of The United States, the,
to enable him by their friendly assistance
proceed without delay, to the accom-
pl'shment of the objects he has specified