FIG. 45.—NINETY MILLION CANDLE POWER BIVALVE LENS.

FIG. 46.—FRONT VIEW OF LENS.

Better known to the patrons of our excursion boats and the visitors to our splendid battleships, are the electric search lights. The greatest example of all search lights, however, is not to be found on the sea, but in the picturesque altitudes of the Sierra Madres in Southern California. At the summit of Mount Lowe, in the neighborhood of Pasadena, is the largest search light in the world, shown in illustration, [Fig. 48]. It is of 3,000,000 candle power, stands eleven feet high, and its total weight is 6,000 pounds. Its light may be seen for 150 miles out on the ocean, and as its powerful beam is thrown from mountain top to mountain top hundreds of miles apart, it adds the illumination of art to the sublimity of nature, and seems a fitting jewel to this lofty crown of Mother Earth.

FIG. 47.—SEARCH LIGHT WITH MACHINE GUN REPELLING NIGHT ATTACK OF TORPEDO BOAT.