ANALYSIS OF THE LESSONS/ 



PART I. 



VEGETABLE TISSUES* 



LESSON I. INTRODUCTION, p. 1. 



1. Physiology explained. 2. It has become a modern science. 3. Yalue of 

 the Microscope. 4. Histology, its origin. 5. Its relation to Physiology. 6. 

 Direct application. 7. A knowledge of the ultimate structure of tissues insisted 

 on. 8. The study of Physiology a work of time. 9. Analysis of the lowest 

 plants. 10. The properties of a cell. 11. Subject continued. 12. TheVolvox 

 globator. 13. Their habitat. 14. Their locomotion. 15. More accurately de- 

 scribed. 16. Method of seeing these organs. 17. The name given to them. 



LESSON II. INTRODUCTION, CONTINUED, r ... p. 4. 



18. The nature of the large green masses. 19. How they escape. 20. The 

 higher and lower plants compared. 21. Analysis of a forest tree. 22. Exam- 

 ination of the root. 23. Fluid of the spongioles. 24. Production of latex. 25. 

 Exhalation, and aeration. 26. Assimilation explained. 27. Nutrition described. 

 28. Secretion explained. 29. The transitory life of cells. 30. Absorbent cells 

 always changing. 31. Absorption in plants and animals compared. 32. The 

 transitory duration of cells, exemplified. 33. Fall of the leaf: what causes it. 

 34. Secreting cells, equally transitory. 35. Function of cells. 



LESSON HI. INTRODUCTION, CONCLUDED, p. 7. 



36. Reproduction denned. 37. The germ considered. 38. The elements of 

 animals and plants alike. 39. The embryo condition of both the same. 40. 

 Identity of the lowest animals and plants. 41. The irritability of animalcules 

 exhibited. 42. Its cessation. 43. Their digestive cavities. 44. Ehrenberg's 

 opinions on this subject. 45. These opinions refuted. 46. The Enchelis pupa. 

 47. Their vibratile cilia. 48. Their mode of development. 49. Maturity, and 



* The numbers refer to the paragraphs. 



