May 6 , 1911 .] 
FOREST AND STREAM. 
705 
RELIABILITY 
PERFECTION 
ULTIMATE 
ECONOMY 
40 -ft. Elco Cruiser. Sleeps Seven. 20 horse power. 
Standard Gasoline Engine. Designed for ocean cruising 
Write for New Catalogue 
A ddr ess 
SPco 
204 Avenue A. 
Bayonne, M.J. 
27 minutes from Liberty and 23d St. Ferries, C. R. R.of N. J. 
ARTHUR BINNEY 
(Formerly Stewart & Binney) 
Naval Architect and Yacht Broker 
Mason Building. Kilby Street, BOSTON. MASS. 
Cable Address, “Designer,” Boston 
COX COL STEVENS 
Yacht Brokers and Naval Architects 
15 William Street - New York 
Telephones 1375 and 1376 Broad 
G1ELOW (SL ORR 
Naval Architects, Engineers and Yacht Broker* 
Plans, Specifications and Estimates furnished for Construction 
Alteration and Repairs. Large list of Yachts for Sale, 
Charter or Exchange; also Commercial Vessels. 
52 BROADWAY Telephone 4673 Broad NEW YORK 
Hollis Burgess Yacht Agency 
15 Exchange Street, Boston, Mass. 
Telephone 23 Main 
SAILING, STEAM, GASOLENE AND AUXILIARY YACHTS 
OF EVERY TYPE AND SIZE FOR SALE AND CHARTER 
Gas Engines and Launches. 
The-r Principles, Types and Management. By Francis 
K. Grain. 
The most practical book for the man or boy who 
owns or plans to own a small power boat. It is motor 
launch and engine information boiled down and sim¬ 
plified for busy people, and every line of it is valuable. 
Cloth, 122 pages. Postpaid, $1.25. 
Forest and Stream Publishing Co. 
YACHT and BOAT SAILING 
By the late "Dijcon K^emp 
Tenth edition. Published 1904. We have a copy in 
fairly good condition, published at $ 12 , which we will 
sell for $9.00. 
FOREST AND STREAM PUBLISHING CO. 
When writing say you saw the ad. in “Forest 
and Stream.” 
engines installed in Maple Leaf III. have, natu¬ 
rally, aroused great interest. A total of 700 
horsepower in two sets of engines, is sufficient 
to warrant that. Briefly, they are V engines 
each 12 cylinders, with overhead inlet valves 
operated by push rods and rockers; one carbu¬ 
rettor to each engine with an induction main 
U-shaped running along both sets of cylinders. 
The exhaust valves open into a central main, 
the two mains joining aft of the engines into a 
single exhaust pipe; all being water jacketed. 
The main engine is started up by a small 
single cylinder auxiliary, the other engine is 
started up by the drag of its propeller. 
“There is a curious resemblance between the 
propeller bracket arrangements on Miranda IV. 
Maple Leaf III., and Lurssen-Daimler. The re 
semblance between the two former is natural 
enough; but the design of the last-named is so 
similar to the other two as to be significant. 
Maple Leaf’s brackets, which support rudders 
as well as propellers, appear to be of rather 
light design. Miranda and Lurssen-Daimler 
have another point in common; both are single 
screw boats, and in, both the single propeller 
bracket has its stern set away and off to star¬ 
board. This, naturally, would give a small 
permanent amount of port-helm, enough to 
counteract any ‘offsetting’ tendency due to the 
propeller. Although this method of supporting 
rudder and propeller shaft end by a single 
vertically hanging bracket with a bearing for 
the extreme outer end of the propeller shaft is 
novel, and looks neat, it is really doubtful 
whether the old V bracket with a good spread 
to the arms is not better. It is much more 
rigid, less liable to break, and cannot hinder 
the boat so much more than the newer idea. 
A glance at Ursula’s stern with her sturdy cast 
bronze ‘battleship’ rudder hung in a couple of 
journals on, the transom, and her well-spread 
V brackets forward of her propellers, inspires 
confidence in her; a confidence which her record 
shows to be singularly well founded. A high 
speed boat needs to be under the most perfect 
control possible, else she may prove a menace 
to other vessels and a real danger to those who 
have to run and race her.” 
Thelma Tender for Elena. 
The fast cruising motor boat building at 
Morris Heights for Commodore Morton F. 
Plant, which is to be a tender for the schooner 
Elena, will be ready for delivery by June 1. The 
new craft will be named Thelma, and she is to 
make 20 miles an, hour. 
Thelma is of steel, 138 feet long, 16 feet beam 
and 5 feet draft. Much of the work is com¬ 
pleted. The decks are laid, the joiner, plumbing 
and other work is well in hand and portions of 
the vessel are being finished. 
The owner’s and guests’ quarters are aft and 
those for the officers forward. The crew will 
have a roomy and well ventilated forecastle. 
There are two deck houses, that forward con¬ 
taining the dining room, which connects with 
the steward’s pantry and the galley, while in the 
after house is a spacious social hall, a roomy 
stateroom and toilet room. 
One of the 6-cylinder, 300-horsepower, air¬ 
starting and reversing Speedway marine engines 
is in place and the other is being tested on the 
blocks in the shop, and will soon be transferred 
to the yacht. 
A Motor Catamaran. w" r p ' 
Ellis Ward, coach of the University of 
Pennsylvania’s rowing crews, has had a cata¬ 
maran built which is to be driven by a gasolene 
motor. The motor will be installed this week, 
and if the boat is a success, a larger one is to 
be built. Two decked-over shells 35 feet long 
support a platform, on which the engine is to 
rest. There is a canvas-sided cockpit on this 
platform 14 feet long and 3 feet 6 inches wide. 
The space between the shells is 18 inches, and 
in that space the propeller is hung. The motor 
weighs 300 pounds. It is thought that fair speed 
will be made and a larger and more substan¬ 
tial craft of the same type is to built at once 
for use on the Hudson. 
CORRESPONDENCE. 
The Forest and Stream is the recognized medium of 
entertainment, instruction and information between Amer¬ 
ican sportsmen. The editors invite communications on 
the suojects to which its pages are devoted. Anonymous 
communications will not be regarded. The editors are 
not responsible for the views of correspondents. 
SUBSCRIPTIONS. 
Subscriptions mav begin at any time 
Terms: $3.00 per year; $1.50 for six months. 
Canadian subscriptions, $4.00 a year; $2.00 for six 
months. 
Foreign subscriptions, $4.50 a year; $2.25 for six 
months. 
Remit by express money-order, registered letter, money- 
order or draft, payable to the Forest and Stream Pub¬ 
lishing Company. 
The paper may be obtained of new-sdealers throughout 
the United States, Canada and Great Britain. Foreign 
bubscription and Sales Agents—London: Davies & Co 
1 Finch Lane; Sampson, Low & Co. Paris: Brentano’s! 
ADVERTISEMENTS. 
Inside pages, 20 cents per agate line ($2.80 per inch). 
1 here are 14 agate lines to an inch. Preferred positions, 
-o per cent, extra. Special rates for back cover in two 
° r A m j^ e co ^ ors - Reading notices, 75 cents per count line. 
A discount of 5 per cent, is allowed on an advertise- 
ni j nt 0A nserted 13 times ip one year; 10 per cent, on 26, 
and 20 per cent, on 52 insertions respectively. 
Transient advertisements must invariably be accom- 
panied by the money or they will not be inserted. 
Advertisements should be received bv Saturday pre¬ 
vious to the issue in which they are to be inserted. 
Only advertisements of an approved character will be 
inserted. 
FOREST AND STREAM PUB. CO. 
127 Franklin St., New York. 
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