"For neutral ships remains open: The sea west of the line Pt des' Espiquette to 38 degrees 20 minutes north and 6 degrees east, also north and west of a zone 61 sea miles wide along the North African coast, beginning at 2 degrees longitude west. For the connection of this sea zone with Greece there is provided a zone of a width of 20 sea miles north and east of the following line: 38 degrees north and 6 degrees east to 38 degrees north and 10 degrees west to 37 degrees north and 11 degrees 30 minutes east to 34 degrees north and 22 degrees 30 minutes east. From there leads a zone 20 sea miles wide west of 22 degrees 30 minutes eastern longitude into Greek territorial waters.
NEUTRAL SHIPS' RISK.
"Neutral ships navigating these blockade zones do so at their own risk. Although care has been taken that neutral ships which are on their way toward ports of the blockade zones on February 1, 1917, and which have come in the vicinity of the latter, will be spared during a sufficiently long period, it is strongly advised to warn them with all available means in order to cause their return.
"Neutral ships which on February 1 are in ports of the blockade zones can with the same safety leave them.
"The instructions given to the commanders of German submarines provide for a sufficiently long period during which the safety of passengers on unarmed enemy passenger ships is guaranteed.
"Americans en route to the blockade zone on enemy freight steamships are not endangered, as the enemy shipping firms can prevent such ships in time from entering the zone.
"Sailing of regular American passenger steamships may continue undisturbed after February 1, 1917, if
"(a) The port of destination is Falmouth.
"(b) Sailing to or coming from that port course is taken via the Scilly Islands and a point 50 degrees north, 20 degrees west.
"(c) The steamships are marked in the following way, which must not be allowed to other vessels in American ports: On ship's hull and superstructure three vertical stripes one meter wide each to be painted alternately white and red. Each mast should show a large flag checkered white and red and the stern the American national flag. Care should be taken that during dark national flag and painted marks are easily recognizable from a distance, and that the boats are well lighted throughout.