[25] Hufeland, C. W., Art of Prolonging Life, 1797, vol. i. p. 176.

[26] Flourens, De la longévité humaine ou de la quantité de vie sur la globe, 1856.

[27] Cornaro, L., Discourses on a Sober and Temperate Life, p. 101, English translation, 1779, London.

[28] Metchnikoff, The Nature of Man, p. 278.

[29] Lankester, E. Ray, The Advancement of Science, p. 237, 1890, London.

[30] Easton, J., Human Longevity, 1799, Salisbury.

[31] The Observer of March 26, 1922, contained a note on the discovery of a tombstone in the graveyard of Lamas Street Welsh Congregational Chapel, Carmarthen, recording the death on Nov. 14, 1831, of Ann David, aged 181 years.

[32] Sinclair, J., The Code of Health and Longevity, Frontispiece to vol. i., account in vol. ii. p. 274, 1807.

[33] King, G., Census of England and Wales, 1911, vol. vii. p. xlvi.

[34] Hufeland, C. W., The Art of Prolonging Life, 1797, vol. i. p. 168.