| United States. Dept. of Commerce and Labor - 1903 - 828 páginas
...aids since the same date. During the fiscal year ended June 30, 1912, there was a net increase of 582 in the total number of aids to navigation maintained by the Lighthouse Service, including 41 lights above the order of postlantern lights, 4 fog signals, 3 submarine bells, 153 daymarks, 60... | |
| United States. Department of Commerce and Labor - 1913 - 896 páginas
...aids since the same date. During the fiscal year ended June 30, 1912, there was a net increase of 582 in the total number of aids to navigation maintained by the Lighthouse Service, including 41 lights above the order of postlantern lights, 4 fog signals, 3 submarine bells, 153 daymarks, 60... | |
| 1916 - 906 páginas
...1,975 2,001 Total 9,188 9,389 Grand total 14,185 14,544 During the fiscal year ended June 30. 1916, there was a net increase of 359 in the total number of aids to navigation maintained by the United States Lighthouse Service, including 74 lights above the order of minor lights, 1 light vessel,... | |
| 1917 - 948 páginas
...Grand total 14,535 14,947 During the fiscal year ended June 30, 1916, there was a net increase of 412 in the total number of aids to navigation maintained by the Lighthouse Service, including 45 lights above the order of minor lights, 5 fog signals, 2 submarine bells, 67 day marks, 33 lighted... | |
| 1922 - 850 páginas
...submarine signals. During the fiscal year ended on that date, there had been a net increase of only 31 in the total number of aids to navigation maintained by the Lighthouse Service, this being the smallest increase in a number of years, due to the large number of aids discontinued.... | |
| United States. Lighthouse Service - 1911 - 1064 páginas
...established at Dog Island, Me. During the fiscal year endeo June 30, 1919, there was a net increase of 400 in the total number of aids to navigation maintained by the Lighthouse Service. There was an increase of 36 lights, 14 float lights, 86 minor lights, and 283 unlighted aids. • On... | |
| United States. Dept. of Commerce - 1913 - 912 páginas
...Congress. Aids to Navigation. During the fiscal year ended June 30, 1914, there was a net increase of 677 in the total number of aids to navigation maintained by the Lighthouse Service, including 59 lights above the order of minor lights, i fog signal, 2 submarine bells, 270 day marks, 65 lighted... | |
| 1916 - 872 páginas
...232 237 Other buoys 6,323 6,488 Day beacons 1,975 2,001 Total 9,183 9,389 Grand total 14,185 14,544 During the fiscal year ended June 30. 1915, there...total number of aids to navigation maintained by the United States Lighthouse Service, including 74 lights above the order of minor lights, 1 light vessel,... | |
| 1916 - 870 páginas
...282 237 Other buoys 6,323 6,488 Day beacons 1,975 2,001 Total 9,183 9,389 Grand total 14,185 14,544 During the fiscal year ended June 30, 1915, there was a net increase of 35!) in the total number of aids to navigation maintained by the I'nited States Lighthouse Service,... | |
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