Our Harbors and Inland Waterways |
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America American ports anchorages artificial harbor artificial waterways Atlantic seaboard Boston breakwaters Brown Bros built canal boats canal building canal craft cargoes carried cars centuries channel Chicago coal coast commerce connect construction cost cranes decks deep depth designed directly distance docks draught dredging efficient engineering enormous entrance equipped Erie Canal Europe facilities feet fleets float Gulf of Mexico Gulf ports handling immense industrial canal jetties Lake Michigan Lakes land largest lighter lock machinery Manhattan Island miles in length Mississippi River modern Montreal natural harbor navigation ocean liners Orleans Pacific Panama Panama Canal pass piers possible problem rail railroad region sand ship canal ship's shore side square miles steamers terminal tion to-day tonnage tons of freight trade routes traffic transfer transhipment transportation trucks United vessels waves wealth wheat width world port York Barge Canal York harbor
Popular passages
Page 205 - I could not help taking a more extensive view of the vast inland navigation of these United States, from maps and the information of others ; and could not but be struck with the immense extent and importance of it, and with the goodness of that Providence, which has dealt its favors to us with so profuse a hand. Would to God we may have wisdom enough to improve them. I shall not rest contented, till I have explored the western country, and traversed those lines, or great part of them, which have...
Page 205 - Prompted by these actual observations, I could not help taking a more extensive view of the vast inland navigation of these United States, from maps and the information of others; and could not but be struck with the immense extent and importance of it, and with the goodness of that Providence which has dealt its favors to us with so profuse a hand. Would to God we may have wisdom enough to improve them.
Page 191 - ... preferable to the central heating plants which have proven so expensive of late years. OCCUPATIONAL ACTIVITIES Although we have not, in its true sense, conducted a school of occupational therapy we have pushed industrial reeducation to a point that kept practically all of our able bodied patients employed. Some idea of the magnitude of the work may be gained "from a study of our building operations. The legislature voted $500,000 for new "buildings. The Department of Public Works and Buildings...
Page 206 - States were those built to connect the Atlantic seaboard with the Great Lakes and the Ohio River. The corporations controlling these first trunk lines have extended their systems to Chicago and St. Louis, and the term "trunk lines" has come to be applied to the roads between the Atlantic seaboard and the central West.
Page 62 - ... of such areas, the Coast and Geodetic Survey has developed an apparatus known as the wire drag, consisting of a horizontal wire which is towed through the water by a vessel at each end, and which will strike or hang on any obstruction rising above the depth at which it is set. The wire is maintained in a horizontal position at any desired depth below the surface by means of weights suspended from floating buoys by cables and by submerged floats attached to the wire at regular intervals. The depth...
Page 42 - ... admit during every tide. Accordingly, the entrance is generally situated at the outer extremity of the harbour ; and the distance to which the jetties or breakwaters are extended from the shore is generally determined by the depth to be attained at the entrance. The entrance is usually placed either facing directly out to sea, or pointing in the direction of the worst wind ; for though the run of waves into the harbour is thus greater than if the entrance was placed in a more sheltered position,...
Page 291 - In Germany the density of population is 290 per square mile, and in Belgium 620.
Page 221 - The standard width of a small canal is twenty-five to thirty feet at the bottom and from forty to fifty feet at the water level, with a depth of four or five feet.
Page 24 - B. c., was one of the seven wonders of the ancient world and stood for some fifteen centuries.
Page 138 - The anchor chain acts as a tether allowing the vessel to swing about to the tide through a great circle, with a diameter equal to about twice the length of the ship, plus the anchor chain.