Lawyer's deed, if we come across a very intricate, &c., 27 Leopard, the, can change his spots if it becomes worth his while to try long enough, 40 Lewes, G. H., on embryology, 25 ---- his objection to the tentativeness with which the same errors are repeated generation after generation, 26 ---- his objection to C. Darwin's language concerning natural selection, 346 Lewes, G. H., on natural selection, 348, 349, 359 Life, some remarks about the criterion of, that I must retract, 279 ---- one Proteus principal of, 320 "Life and Habit," what I believe to have been its most important features, 67, 203, 204 ---- recapitulation of the main principle insisted on, 37, 56, 203, 380, 381, 384 ---- and Hartmann's philosophy of the unconscious, German review, 56, 57 Lifetime, considerable modifications effected during a single, 304 ---- the changes undergone by organisms during a single, Herbert Spencer, on, 332-334 Ligament, the, which binds down the tendons of the instep, 21 Living, Paley is but doing his best to earn an honest, 29 ---- forms of faith, or faiths of form, 339 Lines, no sharp can be drawn, 47 Lion and tiger, Buffon on the, 143, 145 Llama, Buffon on the hereditary ills of the, 161 Longevity, the principle underlying, 67, 380, 381 Loopholes for escape, the "Origin of Species" full of, 358 "Loves of the Plants," French translation of the, 63, 259 Lungs for respiration, and corkscrew for corks, Professor Clifford on, 7. (_See_ also p. 58) Lyell, Sir C., and Lamarck, 277 ---- on the similarity between Lamarck's theory and Mr. Darwin's, 336, 337 MACHINE, Paley declares animals to be neither wholly machines nor wholly not machines, 14 Madeira beetles, the ways in which Lamarck and C. Darwin would treat their winglessness, 373-380 Maillet, de, referred to, 70 Mainspring, the true, of our existence lies not in these muscles, &c., 32 Man, the designer of man, 30 ---- and horse, skeleton of the, 88, 89 ---- and the ape, 90 ---- and the lower animals, Buffon on, 107, 108 ---- Lamarck on, 311, &c. Manner, the, is the man himself, 77 ---- "but this is Mr. Darwin's", 378 Manufacture, the, of tools and of organs, two species of the same genus, 39 Margin, there is a margin in every organic structure, &c., 49, 50 ---- on the margin of the self-evident the greatest purchase is obtainable, 197 Market, the higgling and haggling of the, 50 Martins, M., his life of Lamarck, 235, &c. Matter less important than the manner, 77 ---- and mind, inseparable, 371 Matthew, Mr. Patrick, his work on naval timber and arboriculture, 64, 65 ---- extracts from, 315, &c. ---- Mr. C. Darwin on, 315 ---- on animals and plants under domestication, 324 ---- on will as influencing organism, 320, 321, 322 ---- on the struggle for existence with survival of the fittest, 320, 322 ---- and natural selection, 323