DOCUMENTARY HISTORY OF THE FLORIDA CANAL 49 APPENDIX EXHIBIT A. POTENTIAL COMMERCE, GULF-ATLANTIC SHIP CANAL, CALENDAR YEAR 1929 Cargo tonnage Potential canal commerce at all Gulf ports (ton, 2,000 Cargo value pounds) Imports-... ---....--..---. -................-- ..-------..--- 9, 726 $37,951, 88 Exports...............-------- ......----------------...---.--- 12463,645 70,282,284 Total foreign.--......---.........-...........--...------------ 3,462,371 798,233,872 Coastwise receipts---.-.....-...-...--...--..--...........--......- .. 1, 539,78 97,018, 614 Coastwise shipments.................---- --- ...............------.. 30,172,355 724,136,520 Total coastwse............--..--...------------- -.....----..-- 31,712, 333 821,155,134 Total all cargoes................... .---------------------- 45,174,704 1, 619,388,906 Foreign cargoes counted as potential tonnage of the canal are the imports from and exports to ports of Atlantic Canada, United Kingdom, North Atlantic and Baltic Europe, Havre-Hamburg range, South Atlantic Europe, and Mediter- ranean ports. Domestic cargoes counted as potential tonnage of the canal are cargoes received from or shipped to ports of the Atlantic United States from Jacksonville north. APPENDIX EXHIBIT B. SUMMARY OF VESSELS AND VOYAGES, BY NATIONAL REGISTEBR-POTENTIAL TRAFFIC, GULF-ATLANTIC SHIP CANAL, CALENDAR YEAR 1929 Number Percent Ded-weight Average tonnage tonnage By vessels: American-....--.....---..---- ...--- .. 569 38 4,853,766 39 8,530 Foreign..........- .............-- ...-- ---918 62 7,324,575 61 7,979 Total........----....... --------. 1,487 100 12,178, 341 100 8,190 By voyages (in and out of United States Oulf ports): American---~.----.....-- ...--------- 7,386 73 64, 913, 901 74 8,789 Foreign...........--- ......----..----- 2, 672 27 22,706,493 26 8,498 Total..----...--- ------............-- 10,058 100 87,708 394 100 8,716 Additional voyages between Mexican and United States Atlantic ports: American-..........-- ---....................... 224 ......... 2,02 .................... Foreign...---.............................----... 5 ... 487,333 ........... Aggregate....------........ .------------ 10,341 -----.. 90,134,435 ----...... On a percentage basis, 38 percent of the number of vessels were American registry, and this 38 percent made 73 percent of the number of voyages. On the percentage of tonnage basis, 39 percent of the vessels were of American registry, and this 39 percent provided 74 percent of the total tonnage for all voyages. American vessels averaged 13 voyages each per year; foreign vessels averaged less than 3 voyages each per year.