the center of another portion of this paper, presents some telling each span ; oneend of the girder being free to move, the trench formed by the plow, Fig. 1 being a plan and figures as to the great strength and remarkable pros- and the other bolted to the cross girder. The clear Fig. 3 a… … views of the operating parts, Fig. 3 representing the probably makes no use of his eyes at all, as it would practical application of the improvement. Beneath be impossible to see anything, owing to the absence of the cornice and secured thereto are arranged perpen- light, but that when he comes to…
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