xvi INSTANCES OF THE WONDER OF LIFE 



PAGE 



the immunity of hedgehog and some other mammals to 



snake poison y-- . . : . . . ' v . 532 



the wealth of colouring in the animal kingdom . . . 534 



the partnership between Convoluta and an Alga . . 535 



pigments as waste-products, reserve -products, and by-products 536 



the ripple-marks of growth V- , %'*%. . . . 536 



the internal uses of pigmentation , ' ' 'i . . . 538 



the protective value of coloration ; ' . . . 539 



an insect protected by its meals < ". . . . 542 



the plasticity of the Msop Prawn v ' . . . 545 



coloration expressing nervous rhythm ' , ' ' . . . 546 



warning colours among animals t ' V * . . 548 



recognition-marks and guide-marks . ; . . . 549 



the significance of the rabbit's white tail . . - . . 549 



the decorations of the mouth in some nestlings . v '. . 549 



the peacock's tail . . . . ' ' . 550 



a starfish regrown from a single arm -. ' . .: . 555 



portions of minced sponge regrowing a whole . . ' . 557 



regeneration of a stork's bill . '>. . ' * ' v . 562 



regeneration of a newt's lens -:';i ";/ . ''. '"'. 363, 570 



an antenna regrown instead of an eye i V. . 569 



the same result reached by different paths . . . . 569 



the regrowth of a snail's horn, including the eye . . 571 



great steps in evolution . ;' . . . . . 575 



the first making of a 'body' . ' . . ' . ' . . 576 



the beginning of bilateral symmetry ' i ' i . 576 



the gradual emergence of nobler forms of life . . . 577 



the first finding of a Vertebrate voice . . . . 578 



the steps of progress made by Amphibians ^ .. . 578 



the fitness of the environment to be a home of life . . 579 



the method of organic evolution, trial and error . . 582 



the mystery of variations * * *' . ' * . . 584 



the tactics of Nature ' ; . . . i: . ' . . 586 



new things made out of very old things . v . . .586 



altering the 'time' of a vital tune . . . . . 588 



the optimism of pathology . . . . " ''/ . 589 



trading with Time . . . . '. ' . . 591 



registration without memory . . . ' '^ . "' . . 592 



blindness following imprisonment in darkness . . . 593 



a remarkable experiment with water-fleas . . > . 597 



