
Nov. 30, 1907.] 
FOREST AND STREAM. 
865 

ARTHUR BINNEY, 
(Formerly Stewart & BINNEY.) 
Broker, 
Naval Architect and Yacht 
Mason Building, Kilby Street, BOSTON, MASS. 
Cable Address, ‘Designer,’’ Boston. 

HOLLIS BURGESS, 
Yacht Broker. General Marine Agent. Insurance of all 
kinds. Agent for the purchase and sale of Gasoline Engines. 
Main Office, 10 Tremont St. Tel. 1905-1 Main. B t M 
Branch Office, 131 State St. Tel. 4870 Main. DOSTON, Mass. 


C. SHERMAN Hoyt. Montcomery H. CLarK. 
HOYT @ CLARK, 
VAL ARCHITECTS AND ENGINEERS, 
NA 
YACHT BROKERAGE. High Speed Work a Specialty. 
17 Battery Place, New York. 
COX @ STEVENS, 
Yacht Brokers and Naval Architects, 
15 William Street, - New York. 
Telephones 1375 and 1376 Broad. 
WW ENote(-Mm\y Coye(Es 
OF ALL KINDS 

THE H. E. BOUCHER MFG. CO. 
91 Maiden Lane, New York’ 

Canoe Handling and Sailing. 
The Canoe: History, Uses, Limitations and Varieties, 
Practical Management and Care, and Relative Facts. 
By C. Bowyer Vaux (‘‘Dot”). Illustrated, Cloth, 
168 pages. Price, $1.00. New and revised edition, 
with additional matter. 
A complete manual for the management of the canoe. 
Everything is made intelligible to the veriest novice, and 
Mr. Vaux proves himself one of those successful in- 
structors who communicate their own enthusiasm to 
their pupils. 
FOREST AND STREAM PUBLISHING CO. 

Gas Engines and Launches. 
Their Principles, Types and Management. 
K. Grain, 132 pages. Price, $1.25. 
Here is a pocket manual indispensable to every man 
who uses a motor-boat. It deals in simple, untechnical 
fashion with the running of the marine gas engine, and 
with the difficulties that the marine gas engineer is likely 
to meet with. These engines are described, some pages 
are devoted to launches in general, with practical advice 
to the man who contemplates purchasing a power boat. 
The main feature of the book, however, is a clear descrip- 
tion of the difficulties met with in running a gas engine, 
their uses and how to remedy them. In this discussion 
all technicalities are avoided, and the author has boiled 
down a vast amount of practical knowledge into small 
space and into every-day language. The amateur power 
boat man needs this book, for it will save him much time 
and trouble, and probably not a little money. 
FOREST AND STREAM PUBLISHING CO. 
By Francis 

Uncle Lisha’s Shop. 
Life in a Corner of Yankeeland. By Rowland E. Robin- 
son. Cloth. 187 pages. Price, $1.25. Sota 
The shop itself, the place of business of Uncle Lisha 
Peggs, bootmaker and repairer, was a sort of sportsman’s 
exchange, where, as one of the fraternity expressed it, 
the hunters and fishermen of the widely scattered neigh- 
borhood used to meet of evenings and dull outdoor days, 
“to swap lies.” 
FOREST AND STREAM PUBLISHING CO. 

Men I Have Fished With. 
Sketches of character and incident with rod and gun from 
sy Cte to unig mE = eee of little fishes 
an irds to a buffalo hunt. F M : - 
lustrated. Price, $2.00. nage ee 
It was a happy thought that prompted Mr. Fred Mather 
to write of his fishing companions. The chapters were 
received with a warm welcome at the beginning and 
have been of sustained interest. The ‘Men I Have 
Fished With” was among the most popular series of 
papers ever presented to Forest aND STREAM readers. 
FOREST AND STREAM PUBLISHING CO. 

Model Experiments. 
Tue result of some interesting experiments 
in determining the stream lines which the water 
follows in passing around a vessel’s hull, were 
read at the fifteenth annual meeting of the 
Society of Naval Architects on Noy. 21 and 
22. Mr. D. W. Taylor, ‘Naval Constructor U. 
S. Navy, in his paper quotes as follows: 
“The method adopted after several experi- 
ments was that of coating the surface of the 
wooden model on one side with hot glue ap- 
plied with the brush. Before this set it was 
painted over with a strong solution in water of 
sesqui-chloride of iron and allowed 24 hours to 
harden, after which the model was put in the 
water and towed at a speed corresponding to 
that of the full sized ship. To trace a stream 
line, a small hole is bored through from the 
inside or in the case of extremities, from the 
opposite side of the deadwood, and a strong 
solution of pyrogallic acid is injected through 
the hole while the model is under way. A solu- 
tion containing 10 ounces of acid to a gallon of 
water, which was about the strongest solution 
used, has a specified gravity of 1.03. This is 
instantly largely diluted by the water as it 
passes through the hole in the model, and flows 
aft as part of the water. The particles of 
pyrogallic acid which come in contact with the 
coating of chloride of iron combine to form 
ink, and the result is a dark streak or smudge 
on the surface of the model, which widens as it 
passes aft, and is of such a nature that its center 
line, which is taken as the stream line past the 
hole, can be located with a good deal of ac- 
curacy, say, within a quarter of an inch for a 
distance of from 2 to 4ft. abaft the hole. After 
each run the model is lifted from the water, 
the stream line located as far as possible and 
marked, and a new hole bored at the after por- 
tion of it for the next run. The process is not 
a rapid one even when several stream lines are 
being carried aft at once, and it takes about a 
day to determine half a dozen lines of flow from 
stem to stern of a good-sized model. The wave 
profile against the side can be determined sim- 
ilarly by dropping a little acid into the water 
close to the side; but, since ripples cause the 
water to wet the side above the true mean sur- 
face, the wave profile thus determined is apt to 
be from % to % of an inch above the true mean 
wave surface. The wave shape, however, is 
quite accurately given.” 
While this gives one a definite mark upon 
the hull’s surface, it would seem to us as if 
the method adopted by Mr. C. D. Mosher, 
famous for the high speed launches he has 
built, was even better. 
Mr. Mosher put glass plates in the sides and 
bottom of a water-mill’s sluice way; by ad- 
mitting water to this he could moor his model 
opposite these glass plates and sit and study a 
boat’s actions by the hour, and by sticking short 
pieces of threads all over the hull, the directions 
they took gave an accurate idea of how the 
water flowed around the hull. 

A series of lectures on navigation and nauti- 
cal science, to be given at Columbia University 
throughout the winter, was opened recently by 
Rear Admiral Goodrich, U. S. N. The lectures 
are intended for all persons interested in the 
safe navigation of the sea. and are to be given 
in co-operation with officers of the United 
States navy and the United States coast and 
geodetic survey. It is expected that the lectures 
will have particular interest for students of engi- 
neering who intend entering the national coast 
survey service. 
Bre, 
Tue Pigeon-Fraser Hollow Spar Co. are 
making a large number of hollow sculls and 
sweeps which are giving the very best of re- 
sults, saving a large amount of we'ght and be- 
ing stiffer and stronger than the old style solid 
ones. 
epee 
Tue Morrisania Y. C., of South Brother 
Island, have had plans of a little r4ft. one-de- 
sign catboat made by Mr. Fred Goeller and so 
far fourteen members have agreed to build such 
a boat. 

WILLIAM GARDNER, 
Naval Architect, Engineer, and 
Yacht Broker. 
No.1 Broadway, (Telephone 2160 Rector), New Vork 
PIGEON — FRASER 
HOLLOW SPARS 
Hollow Sweeps and Sculls 
Are Without An Equal. 
116 Condor Street, East Boston, Mass. 
BURGESS @ PACKARD 
Naval Architects @ Engineers 
YACHT BUILDERS 
Office: Boston. Works: Marblehead, Mass. 
Architect 
| B. B. CROWNINSHIELD 23:6: 
SPAR. COATING 
A perfect finish for all woodwork, spars and ironwork exposed 
to excessive changes in weather and temperature. 
MANUFACTURED BY 
EDWARD SMITH @ COMPANY 
Varnish Makers and Color Grinders 
59 Market St., Chicago, Ill. 45 Broadway, New York 




Naval 




Canoe Cruising and Camping. 
By Perry D. Frazer. Cloth. Illustrated. 
Full of practical information for outdoor people, 
whether they travel in canoes, with pack animals or 
carry their outfits on their own backs. 
FOREST AND STREAM PUBLISHING CO. 
Building Motor Boats and 
Managing Gasolene Engines 
are discussed in the book 
“HOW TO BUILD A LAUNCH FROM PLANS” 
A complete illustrated work on the building of motor 
boats and the installing, care and running of gasolene 
motors. By Charles G. Davis. With 40 diagrams, 9 
folding drawings and 8 full-page plans. Price, post- 
paid, $1.50. 
The author is a builder and designer of national reputa- 
tion. All the instruction given is defined and com- 
prehensive, 40 diagrams, 9 folding drawings and 8 full- 
page plans. That portion of the book devoted to the 
use and care of gas engines should be most carefully 
perused by every individual who operates one. The book 
is well worth the price asked for it. 
FOREST AND STREAM PUBLISHING CO. 
Price, $1.00. 


Small Yacht Construction 
and Rigging. 
A Complete Manual of Practical Boat and Small Yacht 
Building. With two complete designs and numerous 
diagrams and details. By Linton Hope. 177 pages. 
Cloth. Price, $3.00. 
The author has taken two designs for practical demon- 
stration, one of a centerboard boat 19ft. waterline, and 
the other a cruising cutter of 22ft. waterline. Both de- 
signs show fine little boats which are fully adapted to 
American requirements. Full instructions, even to the 
minutest detail, are given for the building of both these 
boats. The information is not confined to these yachts 
alone; they are merely taken as examples; but what is 
said applies to all wooden yacht building according to 
the best and most approved methods. 
FOREST AND STREAM PUBLISHING CO. 

Canoe and Boat Building. 
A Complete Manual for Amateurs. Containing plain 
and comprehensive directions for the construction of 
Canoes, Rowing and Sailing Boats, and Hunting Craft. 
By W. P. Stephens. Cloth. Seventh and enlarged 
edition. 264 pages. Numerous illustrations, and fifty 
plates in envelope. Price, $2.00. ? 
FOREST AND STREAM PUBLISHING CO. 

