The population of San Francisco to-day is about a third of a million. A greater portion of its growth has been during the last quarter of a century, and it was the first city in this country to lay cable conduits and adopt a system of cable cars. For several years it had practically a monopoly in this mode of street transportation, and, although electricity has since provided an even more convenient motive power, San Francisco will always be entitled to credit for the admirable missionary work it did in this direction. At the present time, almost every portion of the city and its beautiful parks can be reached easily by a system of transportation as comfortable and rapid as it is inexpensive. Among the wonders of San Francisco must be mentioned the Palace Hotel, a structure of immense magnitude and probably two or three times as large as the average Eastern man imagines. The site of the hotel covers a space of more than an acre and a half, and several million dollars were spent on this structure. Everything is magnificent, expansive, huge and massive. The building itself is seven stories high, and in its center, forming what may be described as the grandest enclosed court in the world, is a circular space 144 feet across and roofed in with glass at a great height. Carriages are driven into this enclosure, and, in the nearest approach to severe weather known in San Francisco, guests can alight practically indoors. There are nearly 800 bed-rooms, all of them large and lofty, and the general style of architecture is more than massive. The foundation walls are 12 feet thick, and 31,000,000 brick were used above them. The skeleton of wrought iron bands, upon which the brick and stone work is constructed, weighs more than 3,000 tons. Four artesian wells supply pure water to the house, which is not only one of the largest hotels in the world, but also one of the most complete and independent in its arrangements. A pleasant ride of nearly four miles in length brings the rider to Golden Gate Park. The Golden Gate, from which the park takes its name, is one of the world's beauty spots, and here some of the most exquisite sunsets ever witnessed can be seen. The Gate is the entrance from the Pacific Ocean to San Francisco Bay, which varies in width from ten to fifteen miles. At the Gate the width is suddenly reduced to less than a mile, and hence at ebb and flow the current is very swift. Near the Gate sea lions can be seen gamboling in the surf, and the waves can be observed striking on the rocks and boulders, and sending up spray of foamy whiteness to a height of a hundred feet.