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conjoined¡£¡¡¡¡But¡¡how¡¡they¡¡are¡¡guided¡¡in¡¡this¡¡work¡¡is¡¡a¡¡perplexing¡¡
question¡£
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then¡¡quickly¡¡dragged¡¡or¡¡rather¡¡jerked¡¡into¡¡their¡¡burrows¡£¡¡¡¡It¡¡
appeared¡¡both¡¡to¡¡my¡¡son¡¡and¡¡myself¡¡as¡¡if¡¡the¡¡worms¡¡instantly¡¡
perceived¡¡as¡¡soon¡¡as¡¡they¡¡had¡¡seized¡¡a¡¡leaf¡¡in¡¡the¡¡proper¡¡manner¡£¡¡¡¡
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from¡¡some¡¡unknown¡¡motive¡£
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burrows¡¡with¡¡various¡¡objects£»¡¡is¡¡no¡¡doubt¡¡instinctive¡¡in¡¡worms£»¡¡and¡¡
a¡¡very¡¡young¡¡one£»¡¡born¡¡in¡¡one¡¡of¡¡my¡¡pots£»¡¡dragged¡¡for¡¡some¡¡little¡¡
distance¡¡a¡¡Scotch¡fir¡¡leaf£»¡¡one¡¡needle¡¡of¡¡which¡¡was¡¡as¡¡long¡¡and¡¡
almost¡¡as¡¡thick¡¡as¡¡its¡¡own¡¡body¡£¡¡¡¡No¡¡species¡¡of¡¡pine¡¡is¡¡endemic¡¡in¡¡
this¡¡part¡¡of¡¡England£»¡¡it¡¡is¡¡therefore¡¡incredible¡¡that¡¡the¡¡proper¡¡
manner¡¡of¡¡dragging¡¡pine¡leaves¡¡into¡¡the¡¡burrows¡¡can¡¡be¡¡instinctive¡¡
with¡¡our¡¡worms¡£¡¡¡¡But¡¡as¡¡the¡¡worms¡¡on¡¡which¡¡the¡¡above¡¡observations¡¡
were¡¡made£»¡¡were¡¡dug¡¡up¡¡beneath¡¡or¡¡near¡¡some¡¡pines£»¡¡which¡¡had¡¡been¡¡
planted¡¡there¡¡about¡¡forty¡¡years£»¡¡it¡¡was¡¡desirable¡¡to¡¡prove¡¡that¡¡
their¡¡actions¡¡were¡¡not¡¡instinctive¡£¡¡¡¡Accordingly£»¡¡pine¡leaves¡¡were¡¡
scattered¡¡on¡¡the¡¡ground¡¡in¡¡places¡¡far¡¡removed¡¡from¡¡any¡¡pine¡tree£»¡¡
and¡¡90¡¡of¡¡them¡¡were¡¡drawn¡¡into¡¡the¡¡burrows¡¡by¡¡their¡¡bases¡£¡¡¡¡Only¡¡
two¡¡were¡¡drawn¡¡in¡¡by¡¡the¡¡tips¡¡of¡¡the¡¡needles£»¡¡and¡¡these¡¡were¡¡not¡¡
real¡¡exceptions£»¡¡as¡¡one¡¡was¡¡drawn¡¡in¡¡for¡¡a¡¡very¡¡short¡¡distance£»¡¡and¡¡
the¡¡two¡¡needles¡¡of¡¡the¡¡other¡¡cohered¡£¡¡¡¡Other¡¡pine¡leaves¡¡were¡¡given¡¡
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different£»¡¡for¡¡out¡¡of¡¡42¡¡leaves¡¡drawn¡¡into¡¡the¡¡burrows£»¡¡no¡¡less¡¡
than¡¡i6¡¡were¡¡drawn¡¡in¡¡by¡¡the¡¡tips¡¡of¡¡the¡¡needles¡£¡¡¡¡These¡¡worm