[125] Reminiscences, p. 136.

[126] Reminiscences, p. 190.

[127] Reminiscences, p. 203.

[128] Nature, Vol. iv., 1871, p. 357.

[129] Loc. cit., p. 409.

[130] Nature, Vol. lii. 1895, p. 441.

[131] Three characteristic figures from these originals have been reproduced for this volume ([Plates 22]-24).

[132] Williamson, "On the light thrown upon the question of the Growth and Development of the Carboniferous Arborescent Lepidodendra by a study of the details of their Organisation." Mem. and Proc. Manchester Lit. and Phil. Soc., Ser. iv. Vol. ix. 1895.

[133] The portrait of Williamson is from a photograph kindly lent by Mrs Williamson, and taken, as she informs me, at Torquay in or about 1876, when he was about 60.