The sun. [volume] (New York [N.Y.]) 1833-1916, 1902-02-02
SOMETHING NEW IN MAPS.
Marking tho Line In the Sea where the
Land Becomes Invisible.

Marking the Line In the Sea- where the
Land Becomes Invisible.
Two maps Of decided novelty and interest
by DR.. l.. Henkel appeared in the December
number Of Peter mann's Miteilunoen. As
far as THE Sun writer knows no earlier
map has ever shown the boundary line In
the seas along which the land becomes
invisible. Not a few nautical charts draw
circles around lighthouses to show Just
how far out 20 sea their lights are visible.
Ordinary atlas sheets. however. do not
give this information.
The two maps which DR.. Henkel has pre-
pared. distin gushing between the parts OF
the Mediterranean and adjacent waters
from which the land may or may not be
seen, are a new venture in cartography.
II Is also an important contribution TO the
study OF those early days OF navigation
when the small barks OF the mariner rarely
~ventured out of view OF the landmarks
along the coasts which told them their
position and kept them from going astray.
One OF these maps gives ten OF the most
conspicuous mountains on or near the
coasts OF Greece and the islands OF the
Egean Sea as centres OF circles, the parts
OF which extending over the ocean show
the seward limit at which these mountains
are visible. The other map, showing the
entire Mediterranean with the Adriatic,
Black and Azov seas, indicates In blue the
water areas that are out Of sight Of land
and in white the water areas from which
land is visible.
This map makes it evident that the portion
Of the Mediterranean in which land Ii visible
Ia Of astonishing extent. With conspicuous
landmarks TO guide them over by far the
larger part OF the Mediterranean. the fact
that maritime enterprise was greatly de-
veloped by the Ph9nicians, Carthaginians
and Greeks throughout that vast water
basin receives a lucid explanation.
IL IL an Interesting circumstances that a
wide area OF water across the widest part
OF the Mediterranean. extending north
and south from the ancient home OF the
Csrthasinians in Tunis TO the Gulf OF Genoa.
il in every part within view Of n Steer
ing north from Garth age the sailors OF
that great city were within sight OF the
island 81 Galita before the African main
land faded from view. Before Gslita
sank In the waves behind them the bold
headlands OF Sardinia were In sight. Leav-
ing Sardinia as;ern. Corsica was the next
beacon ahead and before its mountains
sank beneath the horizon TO the south
the great hills around the Gulf Of Genoa
came into view.
In the same way. also. when their vessels
were bound for Sicily. the island OF Pantel-
laria, midway on the water route. was
the connecting land mass that enabled
them 10 benefit by a constant view OF terra
trma ell the way between Africa and
Europe
Many may recall the fact that the Roman
Consuls IN PISS Is G.. believing n imperative
that they cave every moment possible
In communicating with Rome, made a
voyage ACROSS the open ga from panormus
IN Greece 60 the Italian coast without any
nishAp though thsir pilots had strongly
advised against the enterprise The
fact is, however. that Ia daylight. "
no fog prevailed. they we're not out 81
sight ~ land for an instant In mabing this
comparatively long journey Acluss the
soutlsrn PAT II the Adrstlo. There IL
nu place lu the whole Adrauo above who's
horizon roms poiut ~ land 70 not la Ihin
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