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June, 1913 . THE MARINE REVIEW ALICIA Mietz & Weiss motors; a 46-ft. cruiser for Chauncey Marshall, to be built by the Black Rock Machine Co., Bridge- port, Conn., and powered with two 36- H. P. Aristos engines; a 40-ft. tunnel stern cruiser for. Lj 5. Clarke. oF Philadelphia, with a 40-H». 2. Velie engine; a..3/-ft. day boat. to be built by the Narragansett Bay Yacht Yard for RE. Paine, of . Boston, with, a 50-H. P. Sterling; a 56-ft. cruiser for ' Robt. Shoemaker, Jr., with a 45-H. P. heavy duty Sterling; a 90-ft. auxiliary schooner for A. F. Frenzel, of Denver, Col,,) for use on the: Pacific coast; a 63-ft. eruiser for Wm. 2. Burke, of San Francisco; a 62-ft. cruiser for John B. Lomasney, of Tacoma, Wash. 4 high-speed 60-ft. cruiser for Harry Maxwell, of New York, with two Standard motors; the 65-ft. Hido for Chas S. McCulloh, of New York, with a 20th Century motor, and the 60-ft. Eclipse for Horace A. Beale Jr., of Philadelphia, wih 4 80-4E © Clove motor. The petrol motor has found its way. into all parts of the world, and this is notably the case with regard to its ap- plication to marine purposes, as will be evidenced by our illustration showing the boat called Yohmah, recently built in Siam by Howarth Erskine & Co., for the Arracan Co. This boat was de- signed by Messrs. Thornycroft & Co., of England, who have made a specialty of providing with the complete Thorny- croft motor detailed drawings and build- ing specifications, so that a motor boat may, with ordinary care, be built up on the spot. The Yohmah is a boat 30 ft. long by 6 ft. by tft 10 in. ward deck is rather shorter than the usual high-speed launch type, and an awning covers the whole of the well, there being a glass screen forward for protection against the weather. Side curtains are fitted all around so that The for- HAYSPORT I, the boat isavery useful one for picnic and camping-out parties. Sliding hatches are fitted to either side of the awning for convenience in embarking and dis- embarking. The motor is a 30-B. H. P. Thornycroft type, this horsepower being obtained on petrol, but in Siam it is being run on paraffine, a vaporizer be- ing fitted which has given excellent re- sults; The boat attained a. speed of twelve miles in the condition as shown with the awning up, which can be con- sidered a very good performance con- sidering the windage this provides. Several boats are now being constructed in Hong Kong and elsewhere all over the world under the arrangement men- tioned above, whereby Messrs. Thorny- croft supply the complete working drawings, the motor and all fittings, and in view of the high cost of freight in many parts of the world, this practice appears to be one which could be fol- lowed with advantage elsewhere. POWER BOAT DAPHNE LIZZIE H.