. City of Minneapolis. A review of her growing industries and commercial development, historical and descriptive .. . panies controlling the water power had made, in 1886, an attemptto protect the crest of the falls by a timber apron, but this was carried off in the spring following. Asurvey made in 1869, by Major G. K. Warren, called the attention of the general Government to the JII RESOURCES OF MINNESOTA. necessity of arresting the destruction that was impending. James B. Fiancis, of Massachusetts, wassummoned to examine the falls and to report as to the best means of averting the catastrop
. City of Minneapolis. A review of her growing industries and commercial development, historical and descriptive .. . panies controlling the water power had made, in 1886, an attemptto protect the crest of the falls by a timber apron, but this was carried off in the spring following. Asurvey made in 1869, by Major G. K. Warren, called the attention of the general Government to the JII RESOURCES OF MINNESOTA. necessity of arresting the destruction that was impending. James B. Fiancis, of Massachusetts, wassummoned to examine the falls and to report as to the best means of averting the catastrophe. Herecommended, as a protection against a further recession of the crest, a substantial apron of timber, withheavy crib work at the bottom; for the dangerous tunnel—that it be filled for four hundred feet with apuddle of clay and gravel; and against the third great danger—the action of frost—that the limestone bekept flooded by low dams. No time was lost in carrying out energetic measures. The national appro-priation of $550,000, was expended, beginning with 1S75, and ending March, 1879. A concrete wall. Building.•was laid in the bed of sandstone beneath the limestone ledge, six feet in thickness at the base, four feetat the top, and forty feet in height, for the entire width of the river; thus eflfectually preventingfurther damage. The amount contributed by the citizens of Minneapolis was $334,000. The wholecost of an improvement thus buried out of sight, was nearly a million of dollars, but by it the 130,000horse-power of the falls was preserved, and with it the hope of a great and growing community. RICH TRIBUT.\RY TERRITORY. The richness and rapid development of the tributary territory of Minneapolis were noted as thesecond cause of her phenomenal growth. During the last decade the population of Minnesota increased CITY OF MINNEAPOLIS. 11 loo per cent, and it has doubled since 1880. Dakota increased 450 per cent, from 1870 to 18S0, and500 jier cent, f
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