—— —— —— letter to Rev. J.B. Henderson, on Christianity, ii. [209]
—— —— —— letter to Sir J. Hooker, on Natural Selection, etc., ii. [81]-2
—— —— —— letters to Huxley:
enclosing a copy of "The Scientific Aspect of the Supernatural," ii. [187];
on psychical research, [188]
—— —— —— letter to Mr. J. Hyder, on land nationalisation, ii. [161]
—— —— —— letter to Prof. Knight, on immortality, ii. [178]
—— —— —— letter to Dr. Littledale, acknowledging birthday congratulations, ii. [136]
—— —— —— letters to Sir Oliver Lodge:
on proof of constant variability, and Lord Kelvin's calculations, ii. [74]-5;
on principle of continuity, etc., [178]-9;
acknowledging Romanes' lecture and criticising lectures by Mr. See, [179]-80
—— —— —— letter to Sir C. Lyell, on colour of man, ii. [29]
—— —— —— letters to Mr. J.W. Marshall:
on Hudson's observations and theories, ii. [53]-4;
conveying condolences, and views on a hereafter, [209];
on his autobiography, [226]
—— —— —— letters to Prof. Meldola:
on physiological selection, ii. [36]-8;
on Natural Selection, [41], [42]-3;
on Meldola's controversy with Romanes, [50]-1;
on individual adaptability, [55]-6;
on "discontinuous variation,"[62]-3;
on Weismann's "Germinal Selection,"[68]-70;
on Weismann's doctrine of non-inheritance of acquired characters, [70]-1;
on Weismann's "Germ Plasm,"[72];
on Fisher's "Physics of the Earth's Crust,"[74];
on Meldola's offer to read Wallace's paper at Royal Institute, [87]-8