Kepler, [80].

Kircher, [329].

Kirchhoff, [53], [77].

Langley, [9], [29], [33], [48], [58], [113].

Laplace, [35], [269], [275], [278], [279], [280], [309].

Liveing (Prof.), [213].

Lockyer, [49], [285], [305].

Loomis, [108].

Lyell (Sir Charles), [28].

“Mankind: their Origin and Destiny,” [314].