Section C. 



10 



The Avon made no port after leaving Eio de Janeiro and communi- 

 cated with no vessel en route. The other 2 made no port save Pensa- 

 cola Bar, and communicated with no vessel save the pilot boats there 

 and off Mobile Bar. The infection in these. 3 vessels, then, must have 

 been contracted aboard. They lay in open roadstead at my station, li 

 miles off shore and about i mile apart, and there was no visiting 

 between them and none of their crews was ashore. * 



VI. Spanish bark Castillo,, fifteen days from Cienfuegos via Bound 

 Island Quarantine, in rock and earth ballast ; 14 in crew. Eight days 

 out from Cienfuegos to Bound Island. All well in port, en route, 

 and on arrival. Mate sickened fourth day after arrival at Bound 

 Island while discharging ballast. Vessel sent here in tow August 22. 

 Mate had yellow fever ; died on the sixth day of illness. Captain 

 developed yellow fever day after mate's death ; taken to hospital. No 

 other cases of sickness aboard ; the remainder of the crew are, save 1, 

 Manila men, and all probably immune to yellow fever, being mainly 

 residents of Cuba for many years. 



Here 2 men developed yellow fever, 1 twelve and 1 seventeen days 

 after leaving Cienfuegos. The infecting mosquitoes may well have been 

 harbored in the hold, which the mate would probably not have visited 

 until he anchored at Bound Island and began discharging ballast, and 

 in which the master would not be apt to go while the mate was on duty. 



VII. Spanish bark Grand Canaries, seven days out from Havana 

 July 7. All well in port, en route, and on arrival and while in quar- 

 antine. Crew probably all immune to yellow fever, being mainly 

 Manila men and old residents of Havana. 



O. F., quarantine employe, went aboard as ballast master ; next day 

 developed yellow fever, July 11. This man had been exposed to no 

 possible source of infection for the six months previous except this 

 vessel. A case nearly similar to the above occurred in 1889, but I have 

 no notes of it. 



VIII. Norwegian bark Queen of the Seas, in rock ballast, Bio de 

 Janeiro for Pensacola, fifty-four days out. Left Bio de Janeiro with 17 

 men ; 6 deaths en route. All well in Bio de Janeiro. Lay at Mocanque, 

 a healthful part of harbor. None save master allowed ashore, but' he 

 went in ship's boat. Left 1 man at Bio de Janeiro — consumption. 

 Shipped 1 man, a negro, in his place. Sailed April 23 ; master sick 

 April 26; second mate sick night of May 10; 2 men May 11; 1 man 

 May 12 ; 2 men morning of 13th ; 2 during day of 13th ; 1 man sick and 

 1 died 15th ; 1 man died 17th ; 2 sick 17th ; 1 died 19th ; 2 died 21st and 

 22d; 1 sick 21st; 1 died 25th; 13 sick en route, 5 died. The man 

 shipped in Eio de Janeiro (negro) and 1 of the others immune by pre- 

 vious attack. The picture is very clear of a clean ship, infected by the 

 illness of the master contracted ashore — i. e. , had uninfected mosquitoes 

 aboard, which became infected from the master sick of yellow fever, 

 and conveyed it to the crew. 



