International Library of Technology · Scranton, International Textbook Co. · leaf 274
er with the fact thatthe subsoil is thoroughly permeated Avith holes made by thecrawfish, make the city a floating land in the sense thatwherever a hole is dug it immediately fills with water. Itis not hard to conceive, then, how a roadbed constructedalong the usual lines would soon give trouble.… … Fig. 62. tracks admits of the use of a T rail. Fig. 62 shows a sec-tion of the T-rail construction. The first step is to dig twotrenches, one for each track, about 2 feet deep and 10 feetwide. The space between tracks and between the tracksand the roadways is all grass-grown, and as there is…
Electrical engineering
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