
proof. It is a significant fact that 
whereas the average beginner will lean 
toward the central type, experienced 
users such as aviators, army and navy 
men will invariably select the individual 
focusing adjustment. Note this, how- 
ever, that for these three classes a bin- 
ocular would be largely used at in- 
finity or great distances where the need 
for a change of focus is unlikely to 
arise. For other requirements, as for 
example the study of birds, where a 
rapid change of focus may be neces- 
sary, the central adjustment would be 
the more desirable one. 
The uses for a grood prism binocular 
are almost infinite. For aviation, mili- 
tary and marine use they are a positive 
necessity, but will add materially to the 
pleasure and benefit to be derived from 
any other use. At the theater or opera 
your powers of vision can be increased 
threefold with a little wide angle glass 
of 3 magnifications. In the pursuit of 
game they are practically indispensible. 
The approaching flock of birds may be 
canvas backs, teal, or coots; a 6 or 8 
power field-glass will tell. 
OU see a hazy outline of a deer a 
mile away and wonder whether it is 
buck or doe. A prism binocular would 
solve the problem beyond possibility of 
doubt. They could well be standard 
equipment for any motor car used for 
pleasure. In the mountains or sea- 
shore, for baseball or football games, 
polo matches, yacht racing, horse rac- 
ing, hiking or boxing bouts, in fact, 
wherever the sense of sight is used, 
the occasion can be vastly improved 
with the use of a good prism binocular. 
In conclusion, I cannot too strongly 
stress the term “good prism binocular.” 
The desultory habit of trying one cheap 
glass after another will only cause end- 
less dissatisfaction and useless expense. 
There are many varieties of good 
glasses on the market, and if one em- 
bodies all of the features I have men- 
tioned, and bears the name of a reput- 
able manufacturer, do not hesitate to 
acquire it. If you cannot afford to buy 
a good glass, wait until you can, for 
with apologies to Dr. Bruette “I do not 
know of anything more useful than a 
good pair of binoculars, nor anything 
that is more useless than a bad pair.” 

In writing to Advertisers mention Forest and Stream. 











Distant game you might never see 
with ordinary glasses can be quickly 
spotted with a Carl Zeiss Prism 
Binocular. 
The new wide-angle models have a 
field of view almost twice the area of 
the view seen through other prism 
binoculars, and cover twenty times 
the area seen through a non-prismatic 
glass. 
This greatly enlarged field is also 
CARL ZEISS€ 
’ Prism Binoculars ¥* 
The new Carl Zeiss Wide- 
angle Prism Binoculars 
have a field of view almost 
twice the area of the view 
seen through the aver- 
age prism binocular, and 
cover 20 times the area 
seen through a non-pris- 
matic glass. 
a decided advantage in poor light, 
and in following game-on the run. 
Carl Zeiss Prism Binoculars have 
great light-gathering power and un- 
usually sharp definition. 
Of strong, dust- and moisture- 
proof construction, they will stand 
a lifetime of hard service. 
At opticians, camera-dealers and 
sporting-goods stores. 
Write for catalogue. 
HAROLD M. BENNETT, U.S.A gent, 150 West 23d Street, NEW YORK 
General Distributing Agents for Canada: The Hughes Owens Co., Ltd., Montreal, Toronto, Winnipeg, Ottawa 

Tried by 
a thousand trails 
ARLETON CANOES are built 
to stand the gaff of years of the 
hardest service. They do it too. In 
over a quarter of a century of manu- 
facture we have never had one dis- 
satisfied user. 
Carleton Canoes are wonderfully 
light. They are beautifully balanced, 
fast and surprisingly easy to handle. 
And Carleton Canoes are unusually 
reasonable in price. 
Send for our new illustrated catalog. 
It gives prices and complete informa- 
tion. Write for your free copy today. 
Tue Carrtzeton CAnoz Co., eee ron 
Street, Old Town, Maine, U 
CARLETON 
Get Our 
Catalogue 
American Awning 
& Tent Co. 
236 State Street 
Boston, Mass. 


It will identify you, 



Nitro Powder Solvent 
N29 
Cleans all firearms right. Takes the potassium 
chloride (salt) out of the bore clean as a 
whistle. Prevents rust, preserves resale value, 
Send 10 cent stamp for sample. 
For the working parts use Hoppe’s lubricating 
Oil. A pure lubricant, containing no acid or 
other harmful ingredient, no thinner. Light 
and penetrating, does not gum. 
Ask your dealer. Write for free Cleaning 
Guide, 
FRANK A. HOPPE, Inc. 
For more than 20 years the Authority on Gun Cleaning 
2311 North 8th Street Philadelphia, Pa. 

Try Our Classified Columns for Results. 
See Pages 188 and 189. 
ABELBEST. 
‘SEND FOR CATALOGUE 
Ioc.r ORvis Cop | 
MANCHESTER VERMONT | 



183 
