JULY, 1896 
No. 7 
\THLX 
The 
7'^ _ 
V'S'T 
AN ILLUSTRATED 
Honorary Editor: JOHN HYDE 
A. W. QREEL 
Honjorary Associate Editors j 
^3ElQ ELIZA^ RUHAmAH SCIDMOI^E 
' Ji- 
. CONTENTS ; i / i 
I PAGE 
THE WORK pF THE U., S. BOA^ ON GEOTQI^APHIC NAMES. 
' HENRY GANNETT. 221 
t THE SEINEr l^PE MED^E. ANp THE MOSELLE, II. . / 
1 T^(itti"maps. william m/dAVIS. 228 
\ A JXJf^RNEY IN\BCUADOR^ MARK B. KERR, C. E 238 
With map and illustrations. 
THE ABERRATION OF SOUND AS ILLUSTRATED BY THE BERKE- 
LEY POWDER EXPLOSION. With diagrams. 
ROBERT H. CHAPMAN. 246 
MINERAL PRODUCTION IN THE UNITED STATES. 250 
^ Geographic Notes, p. 251; Miscellanea, p. 252. 
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