(3) Hospital ships.
(4) Small coast fishing vessels. This exemption is not allowed to deep sea fishing vessels.[321]
(5) Vessels of one of the belligerents in the ports of the other at the outbreak of hostilities are usually allowed a specified time in which to take cargo and depart. In the war between the United States and Spain, 1898, Spanish vessels were allowed thirty days in which to depart and were to be exempt on homeward voyage. Vessels sailing from Spain for the United States ports before the declaration of war were to be allowed to continue their voyages.[322] Spain allowed vessels of the United States five days in which to depart.[323] It did not prohibit the capture of such ships after departure. No provision was made for vessels sailing from the United States for Spanish ports before the declaration of war.
In the Prize Law of Japan, 1898, the following exemptions of enemy's vessels are made:—
"(1) Boats engaged in coast fisheries.
"(2) Ships engaged exclusively on a voyage of scientific discovery, philanthropy, or religious mission.
"(3) Vessels actually engaged in cartel service, and this even when they actually have prisoners on board.
"(4) Boats belonging to lighthouses."[324]