Mr. Bush, his wife, son and cocker spaniel Tuppin, recently sailed down the coast of Baja California and western Mexico in their Crocker designed gaff ketch- stopping at practically all of the small sea towns and anchorages along the way; Paradise to Leeward is the account of the voyage. Mainly technical and designed to be a handbook for anyone who wants to make a similar trip, the book abounds with Mr. Bush's maps and drawings of the coastline and these along with textual information will be helpful navigation aids. But there is the sense of adventure in a new land too. The Bush's are charmed with truly paradisiacal surroundings- lagoons, palm studded harbors and friendly inhabitants. Though a certain dryness of style is a disappointing block to a broader feeling for the district, Mr. Bush is primarily a sailor's sailor and it is along these lines that his record of the Los Angeles to Acapulco jaunt will prove invaluable.