viii SCIENCE FROM AN EASY CHAIR 



PAG! 



XXVIII. SPARROWS, TROUT, AND SELECTIVE BREEDING . 266 



XXIX. THE FEEBLE-MINDED . . . .271 



XXX. DEATH-RATES . . . . .283 



XXXI. GOSSAMER 287 



XXXII. THE JUMPING BEAN .... 296 



XXXIII. PROTECTIVE COLOURING IN ANIMALS . . 304 



XXXIV. HOP-BLIGHT 314 



XXXV. GREEN-FLIES, PLANT-LICE, AND PARTHENO- 

 GENESIS . . . . . .322 



XXXVI. THE DEADLY PHYLLOXERA . . . 334 



XXXVII. CLOTHES MOTHS . . . . -339 



XXXVIII. STONE AND WOOD BORERS . . .346 



XXXIX. CHRISTMAS FARE . . . . .356 



XL. THE ORIGIN OF OPIUM . . . .363 



XLI. THE MOST ANCIENT MEN . . . .371 



XLII. THE CAVE-MEN'S SKULLS . . . -391 



XLI 1 1. MORE ABOUT THE NEANDER MEN . . 402 



INDEX . . . . . .413 



