formulæ for, [98], [102], [104]

Elm, [8], [38], [44]

rock, [9], [13], [16], [20], [27], [32], [40], [42], [56]

slippery, [13], [27], [32], [40], [56]

white, [13], [20], [27], [32], [40], [42], [56]

Elongation, [3], [7], [33]

Eucalyptus globulus, [54], [78], [82]

viminalis, [54]

Factor of Safety, [29], [139]

Failures, bending, [33]-37, [77], [78]