6 CONTENTS. 



CHAPTER VIII. 



PAGB 



ANATOMICAL ... ... ... ... e ... 205 



CHAPTER IX. 



POND-LIFE 221 



CHAPTER X. 

 MISCELLANEOUS ... ... ... ... ... ... 235 



LIST OF ILLUSTRATIONS. 



FRUCTIFICATION OF VALLISNERIA ... ... Frontispiece 



WOOD SECTION ... ... .. ... ... Title-page 



SATDBN, AS SEEN WITH THE TELESCOPE ... ... ... 14 



JUPITER, AS SEEN WITH THE TELESCOPE ... ... ... 14 



SUN-SPOT, UNDER A TERY HIGH POWER ... ... ... 16 



A DROP OF WATER AS SEEN UNDER THE MICROSCOPE ... 16 



ARACHNOIDISCUS, FROM NATURE ... ... ... ... 17 



FORAMINIFERA, WITH SPONGE SPICULES ... ... ... 19 



FOSSILS FROM THE CHALK ... ... ... ... ... 20 



SPLIT SECTION OF ORBITOLITE ... ... ... ... 22 



SINGLE SHELL OF FORAMINIFER ... ... ... ... 25 



TONGUE OF HOUSE-FLY ... ... ... ... ... 30 



FOOT OF HOUSE-FLY ... ... ... ... ... 31 



LEAF OF PITCHER-PLANT ... ... ... ... 33 



HIND LEG OF HONEY-BEE ... ... ... ... ... 34 



COMPARISON OF EGGS OP INSECTS WITH SEEDS OF PLANTS ... <u 

 TRACHEA OF AN INSECT COMPARED WITH SPIRAL VESSELS OF PLANT 51 



SPIRACLE OP DYTISCUS (BEETLE) ... ... ... ... 51 



TRACHEAE OP A BEETLE ... ... ... ... ... 52 



PORTION OF THE WING OP A MOTH ... ... ... 53 



SCALE FROM MOBPHO MENELAUS ... ... ... 54 



