Also loggan-stone, logan. [f. logan = LOGGING ppl. a.2 + STONE.] A rocking-stone.

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1759.  B. Martin, Nat. Hist. Eng., I. Cornwall, 4. This stone … was a Logan or Rocking-stone.

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1808.  Polwhele, Cornish-Eng. Voc., 45. Logan, shaking. A logan stone, a rocking moving stone.

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[1824:  see LOGGING ppl. a.2]

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1826.  Carrington, Dartmoor, 66. Near the edge Of the loud brawling stream a Logan stands Haply self-poised.

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1831.  Fonblanque, Eng. under 7 Administr. (1837), II. 79. Like the Logan stones, which the finger of a child may move.

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1859.  H. Kingsley, G. Hamlyn, xxxiv. (1900), 181/2. Strong as your famous lieutenant who capsized the logan stone.

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1881.  J. Hawthorne, Fort. Fool, I. xv. The big loggan-stone that had stood in front … was upset, and fallen into the gulley.

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[1881:  see LOGGING ppl. a.2]

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