CONTENTS. 



PAGE 



INTRODUCTION. Instruments, Apparatus, Reagents, Materials . . xix 

 Fig. 1. Objective with correction collar . . . . xxv 

 ,, 2. Zinc frame for object-slides xxxi 



CHAPTER 



I. Use of the Microscope. Structure of Starch .... 1 



Pig. 3. Beck's British students' microscope ... 2 



4. Stand IlA, of E. Leitz, of Wetzlar . . . 8 



5. Starch-grains from Potato-tuber .... 14 

 ,, 6. Starch-grains from Bean (Phaseolus vulgaris) . 17 

 ,, 7. Starch -grains from Wheat-meal of Triticum durum 18 

 ,, 8. Starch -grains from Avena sativa .... 19 

 ,, 9. Starch-grains from latex of Euphorbia Jidioscopia 19 

 ,, 10. Starch-grains from latex of Euplwrbia splendens . 20 



II. Reserve stuffs in situ. Aleurone-grains, Protein Crystals, 



Fat Oils. Mounting of permanent preparations . . 24 



Fig. 11. Cells from cotyledons of Pea .... 27 



12. Cross-section of outer part of grain of Wheat . 30 



13. Cell showing aleurone-grains and albumen crys- 



tals, from the endosperm of Ricinus communis 33 



III. Protoplasm Protoplasmic movements. Nucleus. Drawing 



with the Camera, etc. ; calculation of Magnification. 

 Plasmolysis 38 



Fig. 14. Protoplasmic movement in hair of filament of 



Tradescantia virginica 39 



,, 15. Camera lucida of Abbe 40 



,, 16. Two- prism camera of Zeiss 42 



IV. Chromatophores. Coloured cell-sap. Leucoplasts . . 51 



Fig. 17. Chlorophyll-bodies of Funariahygrometrica . . 52 



,, 18. Colour-bodies from calyx of Tropceolum majus . 54 



,, 19. Epidermal cell from petal of Vinca minor . . 56 



20. Colour-bodies from root of Carrot . .' .57 



21. Leucoplasts, with starch grains, of Pliajus grandi- 



folius 59 



,, 22. Starch grains, from rhizome of Iris germanica . 59 



