Page:Popular Science Monthly Volume 88.djvu/863

 Tracking Villa in the Wilds of Mexico

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At top, the Seventh Cavalry machine-gun troop crossing the divide south of Casas Grandes. In oval, the army wireless station at Columbus, New Mexico. Above, the Eighth Cavalry machine-gun troop in practice. Many of our guns are obsolete in design; in the recent raid one gun became clogged and had to be abandoned

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