ke the waves of the other series at a, thus illustrat- tion and tests of armor which aims at a completeness having noticed the mill pond phenomenon and upon ing the phenomenon of beats. and ata standard not attempted elsewhere. They have his ability to realize that these spreading rings relate been… … Fig. 1—SLIDE FOR ILLUSTRATING CONCENTRIC WAVES. our present path. Cammelland Brown have sipte pro- probably over 500 cities in the United States equipped duced the first-class armor to which we refer. ‘Mr. with electric roads, many of them of great mileage, itself in a section taken through a sound…
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