CONTENTS 



PAGE 



translator's note .... 7 



CHAPTER 



I THE HARMAS .... II 



II THE ANTHRAX .... 28 



III ANOTHER PROBER (PERFORA- 



TOR) 63 



IV LARVAL DIMORPHISM . . .78 

 V HEREDITY Ill 



VI MY SCHOOLING 131 



VII THE POND 162 



VIII THE CADDIS-WORM . . . 1 82 



IX THE GREENBOTTLES . . . 2 12 



X THE GREY FLESH-FLIES . . 233 



XI THE BUMBLE-BEE FLY . . 252 



XII MATHEMATICAL MEMORIES: 



NEWTON'S BINOMIAL 



THEOREM .... 276 



XIII MATHEMATICAL MEMORIES : 



MY LITTLE TABLE . . 299 



XIV THE BLUEBOTTLE: THE LAY- 



ING 316 



5 



