The Morgan City daily review. (Morgan City, La.) 1916-1920, 1919-05-28
New !. S. Map =, !
Lambert Con}orp,a',I
Comic P ojecto r'''

I0nlc rejection
Eey, Department Of co rs7ast' \
ports !. the completion Of II.
Line, r' map Of the United s ;as a'' y
, Lambert r..( c"nio E1 Comic my a.
~ @@4 10 sea. scale l,5.oooOOo, tin. s'oj1
z5z3' inches Price 2; cent, a,''''o
Ih'' map is intended n,,.,.
'a'e 10 which may be added :. y
o, special information desire, .a' 4
T recent Coast and ceods,s Is 90 n
charts. State names and so,, ~.
principal rivers, capitals ,,s s'a'a
cities IN the different STATE, , .'s
only information otherwi,. 49,.
ed. ' ensa
a., d4 zen map ,1 is OF special in,,r,,, Il
the TACT that it is based On H. 4. y
system Of projection as ,b,, 10y
was employed by the armies v, ~
allied forces in the military I'LL
tlonS IN France. To meet tso, ~
qn'rements and at the request 4;
Army special publication, v.,.
pared by the Coast and GeOd.,,
vey.
Many methods of projection 4
been designed to solve the i;i,'1
problem Of representing a 81
surface on a plane. As
projections have unquestionab
ITS as we'll as equally serious all
any region to be mapped shoula
made the subject of spec;,I
and that system OF projection al
ed winch will give the best re-
Tor the area under considerable
The Mercator Projection, Al
universally used for nautical IN
is responsible for many false INN
sions OF the relative size Of
tries differing in latitude. The n,
comic projection, widely used
well adapted for both tooocr,1
and photographic surveys, whel
for the whole of the United Saa
one map, has the serious deir
unduly exaggerating the area, d
eastern and western limits.
Along the Pacific Coast u
alne the error in scale is as nj
% - per cent, while at New Ya
reaches 4 II per cent.
The value of the new oudM,
on the Lambert projection al
be realized when it is staM
throughout the larger and nmI
portant part of the United
that is, between latitudes 80 ~
40, he maximum scale error d
one half of one percent. This IN
Of scale error of one half OF ons
cent is frequently less than Tie
tortion due to the method Of 4
ing and to changes from the hul
ty Of the air. Only in southem
Florida and Texas does this
ton attain its maximum err
= Is per cent.
'Tha Lambert projection i
adapted to large areas of predo1
ing east and west dimensions
United States where the dis
across from east to west is ! ~
that of the distance north and :
The strength of the polyconlc
lection on the other hand is alona
central meridian. The merits
defects of the two systems OF pro
ton may be stated in a general
as being at right angles to each q
Special features of the Lam
projection that are not found 10
Polytechnic may be stated briefly
follows:
|. The Lambert projection IS
formal. that is. all angles betweel
tersecting lines or curves are
served; and for any given point
restricted locality the ratio OF
length of a linear element on
earth's surface to the length
corresponding map element
slant for all azimuths or directiod
which the element may be taken
2 The maridians are straight
and the parallels are concen''ls
cles.
3 It has two axes Of strengtl
stead of one, one standard pan
OF the may of the United STATE
ing ATTITUDES 50 and IS, and upon
parallels the scale is absolutely
The scale for any other part g
map. or for any parallel, can =
tanned from Special Publicalio,'
3, page Sc, U. S. Coast and Gs
Survey. By means Of these taD'
very small scale error which