582 
FOREST AND STREAM 
December, 1917 
I “A BOOK DEAR TO ALL RIFLE SHOTS’ 
—Butle Daily Post 
Just Off the Press 
Practical Exterior Ballistics 
for Hunters and Riflemen 
VOLUME 1, OF 
“The Modern Rifle” 
BY 
J. R. BEVIS, Ph. D. 
Formerly voilh Remington U. M.C. Co. 
AND 
JNO. A. DONOVAN, M. D. 
Member of the 1910-1911 N.R.A. 
Indoor Championship Team 
Volume i fills the long-felt want 
of every HUNTER and RIFLE¬ 
MAN for a simple, practical and 
complete text book on Exterior 
Ballistics in a handy pocket size. 
Up to the minute ballistic tables 
I and formulas illustrated with a 
I problem of practical use that arises 
I daily in the experience of every 
I hunter and marksman. 
Among the subjects discussed 
| are—The Drop of the Bullet; Defi- 
| nitions of Terms; Recoil; Velocity, 
1 Energy, Time of Flight and Height 
| of Trajectory at Any Point; The 
1 Ballistic Coefficient and Coefficient 
| of Form; Shape of the Ideal Bullet; 
| Comparative Efficiency; The 
| Chronograph and Its Use; The 
| Influence of Temperature, Weight 
| of Powder, Weight of Bullet and 
1 Length of Barrel Upon Velocity; 
1 The Danger Zone and Point Blank 
| Range (so-called); The Change of 
| Altitude, Temperature and Hu- 
| midity on Velocity and Energy; 
| Winds and Rules for Correction; 
| Drift; Angle of Departure, Jump, 
| Graduation of Sight; Cant and Its 
| Importance; Holding Over Game 
1 or Target; Tables of Ballistics of 
| Cartridges; and Ingalls’ Ballistics 
1 Tables From Artillery Circular M, 
1 which is now out of print; and 
| Complete Index. 
j Capt. G. A. Wildrick, Army War 
College, 
Washington, D. C. 
“You have accomplished what no 
j one else has accomplished, the 
1 rather difficult effort of interpreting 
I the subject from the ‘highbrow’ 
| works and presenting the essentials 
I in a clear, concise, simple, and 
I complete working f orm. Your 
| book accomplishes the very valu- 
1 able educational service of bring- 
J ing the subject to the average 
I man, and fills a distinct place in 
I gunnery literature.” 
I 200 pages, illustrated; cloth, $1.25 postpaid. 
10 or more to clubs, $1.00 postpaid. 
BEVIS & DONOVAN 
| 507 Phoenix Bldg., Butte, Montana 
A SELF-REVISING ATLAS 
Bound in FLEXIBLE MOROCCO like a Bible. Just the right 
size to hold in one hand or to fit in the ordinary bookshelf. 
A USEFUL GIFT 
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fashioned affair like the at¬ 
lases you know about—it’s not the kind 
of a “geography” jmu used to try to 
hide behind in your younger days at 
school. 
A good atlas is the most necessary of 
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Ours is a handsome, convenient, flexible 
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THE PUBLIC HAS LONG BEEN 
WAITING FOR AN ATLAS 
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Special new large-scale maps of the Euro¬ 
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There are 512 pages in this handy, 
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RECENT CHANGES NOTED 
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THE SELF-REVISING FEATURE 
The Warring Nations of the World are mak¬ 
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one with its SELF-REVISING GUARANTEE. 
Please read our guarantee carefully, for we 
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Self-Revising Guarantee I ‘ffi’j! u ® e 
Your copy contains a cer- ’ 1 '■ frequent. 
tificate entitling you to a | 
sixteen page supplement of I 
maps showing the new 1 
( boundaries of all countriesl 
affected as determined by I 
the Peace Treaties, to be 1 
I mailed free within sixtyl 
days after the war is over. I 
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give maps showing Europe| 
I before and after the war In. 
one complete book. 
1 y with 
pleasure 
and 
profit 
compact volume, actual size by 6)4 
A SPECIAL BARGAIN-FREE APPROVAL OFFER 
Real bargains sometimes do exist, and we want to prove that this is one 
you. Let us send you an Atlas, postpaid, and if it doesn't please you. send 
it back at our expense. If you desire to keep it remit, not the regular price, 
which is $5.00, but. the SPECIAL LIMITED PRICE of $2.95. „ 
We are able to make this offer for reasons we cannot now explain, but . u 
owing to the unsettled conditions that now so generally prevail, we O’ 
may have to withdraw our offer instantly, therefore do not wait ' 
qjjjJ disappointed iml 1 tolro o/luontn trrx n.f tbie rool nruvirtlinittr 
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\P ** ^ 
A \ .V \V 
C. S. HAMMOND & CO., 30 Church St., New York 
c\ C an 
* 400 ’' 
N o ^ ^ 
GAME BIRDS AND FISHES OF NORTH AMERICA 
This portfolio of Game Birds and Fishes consists of forty 
plates, measuring gj/{ x 12 inches, twenty Game Birds by J. L. 
Ridgway, and twenty Fishes by S. F. Denton. 
Printed on heavy plate paper they are ready for framing, and make most 
suitable and charming decorations for library, den, or anv other room. 
Sold as high as $6.00. OUR SPECIAL PRICE, $2.00 
Forest and Stream Book Dept. 9 East 40th St., New York City 
