Vlll 



CONTKNTS 



i II AI'TKR 



XXV11 TIN: SPIDER'S WEH 



XX VI 11 Tin 



XXIX VENOMOUS INSE< 



XXX VENOM 



xxxi THB VIPER AND THE SCORPION . . . 



XXX II THE NETTLE 



III 111 PROCESSION ARY CATERPILLARS . . . 



XXXIV THE STORM 



XXXV ELECTRICITY 



XXXVI THE KXPERIMENT WITH THE CAT . 



XXX VI I THE KXPERIMENT WITH PAPER . . . 



XXX VII I FRANKLIN AND DE ROMAS 



X X X I X T 1 1 UNDER AND THE LlGHTNlNG-ROD . 



XL EFFECTS OF THE THUNDERBOLT 



XLI CLOUDS GPOJ-^ V & . . . . . 



XLII THE VELOCITY OF SOUND 



XLIII THE EXPERIMENT WITH THE BOTTLE OF 



COLD WATER 



-XLIV RAIN 



XLV VOLCANOES 



XLVI CATANIA 



XLVII THE STORY OF PLINY 



XLVIII THE BOILING POT 



XLIX THE LOCOMOTIVE 



L EMILE'S OBSERVATION 



LI A JOURNEY TO THE END OF THE WORLD . 



LII THE EARTH 



LIII THE ATMOSPHERE 



LIV THE SUN 



LV DAY AND NIGHT 



LVI THE YEAR AND ITS SEASONS 



\:V2 



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