SANDWICH, JOHN MONTAGU', FOURTH EARL OF (1718-1792), was born 3d November 1718, and succeeded peninsula. The Bay of San Francisco is reached from the ocean through the Golden Gate, a strait about 5 miles long and averaging 1 mile in width, with a depth of 30 feet on the bar at the entrance and from 60 to 100 feet within. The bay, which extends past the city in a southsouth•east direction for about 40 miles, is about seven miles wide in front of the city, while its greatest width is 12. Connected with the Bay of San Francisco on the north by a strait 3 miles wide is San Pablo Bay, about 10 miles in length and the same in breadth, having at its extreme northerly end Mare Island, the site of the navy yard. This bay, again, is connected by the Straits of Carquinez with Suisun Bay, 8 miles long and 4 wide. The total length of these bays and connecting straits is 65 miles. This great inland water, sheltered and for the most part navigable by the largest craft, receives the two great his grandfather in the earldom, 20th October 1729. He was educated at Eton and at Trinity College, Cambridge, which he entered in 1735. After a voyage round the Mediterranean, he returned to England and began to take an active interest in politics as a supporter of Sir Robert Walpole. A clear and lucid rather than a brilliant debater, his style of address always won the attention of his audience, and his accurate knowledge secured their respect. The high opinion the Government entertained of his judgment and his diplomatic abilities was evidenced by his appointment in 1746 as plenipotentiary to the congress at Breda, which was continued till peace was negotiated at Aix-la-Chapelle in 1748. On his return he became first lord of the admiralty, retaining the post until June 1751. He held the same office from 1763 to 1765, and again from 1771 till the dissolution of Lord North's administration in 1782. He died 30th April 1792. His Voyage Round the Mediterranean was published posthumously in 1799, accompanied with a memoir.