CONTENTS. 



CHAPTER L 



pagp 



A HALF-HOUR ON THE STRUCTURE OP THE MICROSCOPE. . 1 



CHAPTER II. 



A HALF-HOUR WITH THE MICROSCOPE IN THE GARDEN.. 30 



CHAPTER III. 



A HALF-HOUR WITH THE MICROSCOPE IN THE COUNTRY. . 47 



CHAPTER IV. 



A HALF-HOUR WITH THE MICROSCOPE AT THE POND-SIDE 56 



CHAPTER V. 



A HALF-HOUR WITH THE MICROSCOPE AT THE SEA- SIDE. . 67 



CHAPTER VI. 



A HALT-HOUR WITH THE MICROSCOPE IN-DOORS 70 



APPENDIX. 



THE PREPARATION AND MOUNTING OF OBJECTS S » 



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