CHAPTER VI 



DRAWING WITH THE MICROSCOPE AND WITH PROJECTION 

 APPARATUS; CLASS DEMONSTRATIONS 



265. Apparatus and material for Chapter VI. 



1. Microscope. 



2. Abbe and Wollaston's camera 

 lucidas (fig. 99-100). 



3. Drawing board (fig. 101, 102, 

 109). 



4. Thumb tacks and small tacks 



( 275)- 



5. Pencils ( 275). 



6. Microscope screen (fig. 33). 



7. Microscopic preparations. 



8. Small arc lamp with condenser 

 (fig. 49). 



9. Large projection apparatus (fig. 

 109-112). 



10. 45 mirror or prism (fig. 109, 

 112-114). 



11. Mazda stereopticon lamp of 

 250, or 400 watts ( 289, 294, 362). ^ 



12. Micrometer, one-half milli- 

 meter, and one in one-tenth and one- 

 hundredth millimeters (fig. 80). 



13. Mounted letters. 



14. Printed letters to put on draw- 

 ings ( 302). 



15. Carbon drawing pencils ( 290). 



16. Graphite drawing pencils 

 ( 288-290). 



17. Water-proof India ink (Hig- 

 gin's or Weber's) ( 288-290). 



1 8. Crow quill pens ( 288). 



19. Right line pen and other 

 drawing instruments ( 288). 



20. Erasers. 



21. Tracing paper ( 286). 



22. Whatman's hot-pressed draw- 

 ing paper ( 291). 



23. Reynold's bristol-board (291). 



24. Developing photographic paper 

 ( 289-290). 



25. Camera obscura or photo- 

 graphic camera and material for 

 negatives (fig. 107, 285-289). 



26. Ruby glass ( 289). 



27. Gihon's opaque and fine brush 

 ( 290). 



28. Metric scale (fig. 104). 



29. T-square and triangles ( 303). 



30. Air brush ( 290). 



31. Simple microscopes ( 306). 



32. Demonstration compound mi- 

 croscopes ( 307). 



33. Traveling microscope ( 308). 



34. Indicator ocular ( 309). 



35. Markers for ringing ( 310). 



36. Projection microscope (311). 



37. Masking paper ( i3i2a). 



38. Objectives, amplifiers, oculars 



39. Prism or 45 mirror ( 315). 



40. Hay infusion ( 211, 315). 



41. Four- window daylight lantern 

 (316). 



42. Demonstration table for 8 

 microscopes ( 316). 



DRAWING 



266. Methods of drawing. There are five principal methods 

 for obtaining drawings in general, and all the methods are applicable 

 to the production of drawings of microscopic objects: 



1 60 



