and
, given in the Appendix, the diagrams, [Figs. 17] and 18, have been constructed.
In both diagrams, the weight of the earth was taken at
lb. per cu. ft., and the cohesion of the earth at
lb. per sq. ft. In [Fig. 17],
and
, given in the Appendix, the diagrams, [Figs. 17] and 18, have been constructed.
In both diagrams, the weight of the earth was taken at
lb. per cu. ft., and the cohesion of the earth at
lb. per sq. ft. In [Fig. 17],