. Review of reviews and world's work. for the army. Similarbut less stringent rules should apply to mechan-ics, clerks, draughtsmen, overseers, and so men should be divided into squads, with amaster-laborer or master-mechanic for each, ac- rounded boulders ; sloppy muck, and a natural cementcalled conglomerate, which sent several contractorsinto bankruptcy and half a dozen engineers to the vergeof insanity. Every mile presented new problems in theexcavation and handling of material. And they weresolved, not by engineers, but by the contractors, whoseoriginality in planning and superb
. Review of reviews and world's work. for the army. Similarbut less stringent rules should apply to mechan-ics, clerks, draughtsmen, overseers, and so men should be divided into squads, with amaster-laborer or master-mechanic for each, ac- rounded boulders ; sloppy muck, and a natural cementcalled conglomerate, which sent several contractorsinto bankruptcy and half a dozen engineers to the vergeof insanity. Every mile presented new problems in theexcavation and handling of material. And they weresolved, not by engineers, but by the contractors, whoseoriginality in planning and superb audacity in execu-tion made the Chicago Drainage Canal the center of at-traction of the engineering world for many years. Engineers who are acquainted with the Isth-mian situation predict that several of the devicesfound so effective in constructing the DrainageCanal will be employed on the Panama work,especially the Lidgerwood cableways, and thedumping apparatus devised by Mr. Locker, aDrainage Canal contractor, and the movable in-. HIOH-POWER DERRICK USED IN CHANNEL EXCAVATION. cording to the class of men that compose it. Itwill be seen that such an organization would notbe practicable under the contract system, its mainidea being to secure absolute control by the offi-cers for all purposes of work, similar to theorganization of an army. Engineering Devices Likely to Be Employed. In the Technical World, published by the Ar-mour Institute of Technology, Chicago, McDowell gives a brief description ofsome of the machinery and methods that willbe employed in cutting the Panama Canal. Thiswriter refers to some of the difficulties encoun-tered in the cutting of the Chicago DrainageCanal, the main channel of which is about 28miles long, of which 9 miles are in solid 12,000,000 cubic yards of solid rock, andnearly 30,000,000 cubic yards of the so-calledglacial drift, were excavated and heaped upon both sides of the channel. No excavation,says this writer, of suc
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