San Francisco may fairly claim to have the most capacious natural harbor of any of the world's great trading marts. It is also one of the very safest. It is entered through the Golden Gate, a passage a mile wide and thirty-five feet deep at low tide - admitting the largest ships afloat without danger of grounding. The landlocked bay of which this harbor is part is fifty miles long, and averages five miles in width. There all the shipping of the entire globe could anchor in perfect safety. Port Philip bay, the chief harbor of Victoria, Australia, is larger than the bay of San Francisco, being about thirty-eight miles long by thirty-three broad, but its very breadth, with its surroundings, leaves it exposed to storms from certain quarters. Port Jackson, on which Sydney, New South Wales, Australia, is located, is a magnificent harbor, completely landlocked, extending inland in some places fully twenty miles, and having ample depth of water for vessels of the heaviest burden. The harbors of New York City, Rio Janeiro, Brazil, and Havana, Cuba, are capacious and secure.

Next come those of Boston, Norfolk, Va., Portland, Me., Halifax, N.S., Copenhagen, Constantinople, Hong Kong, Yokohama and Nagasaki. The great ports situated on the -banks of rivers, such as London, Liverpool, Glasgow, Lisbon, Philadelphia, New Orleans, Quebec, Shanghai, Canton, Calcutta, etc., are not included in the definition of harbors as here considered.