Chapter I: 8

HINTS ON THE MANIPULATION OF GLASS AND ON GLASS-BLOWING FOR LABORATORY PURPOSES 8

§ 4. Soft Soda Glass.

§ 6. Flint Glass.

§ 9. Hard or Bohemian, Glass.

§ 10. On the Choice of Sizes of Glass Tube.

§ 11. Testing Glass.

§ 13. Cleaning Glass Tubes.

§ 14. The Blow-pipe.

§ 18. The Table.

§ 19. Special Operations.

§ 20. Closing and blowing out the End of a Tube.

§ 21. To make a Weld.

§ 22. To weld two Tubes of different Sizes.

§ 24. To weld Tubes of very small Bore.

§ 30. To cut very thick Tubes.

§ 31. To blow a Bulb at the End of a Tube.

§ 32. To blow a bulb in the middle of a tube.

§ 33. To make a side Weld.

§ 34. Inserted Joints.

§ 35. Bending Tubes.

§ 36. Spiral Tubes.

§ 37. On Auxiliary Operations on Glass.

§ 38. Boring small Holes.

§ 39. For boring large holes through thick glass sheets.

§ 41. Operations depending on Grinding: Ground-in Joints.

§ 42. Use of the Lathe in Glass-working.

§ 46. Making Ground Glass.

§ 47. Glass-cutting.

§ 48. Cementing.

§ 49. Fusing Electrodes into Glass.

§ 51. The Art of making Air-light Joints.

APPENDIX TO CHAPTER I.

ON THE PREPARATION OF VACUUM TUBES FOR THE PRODUCTION OF PROFESSOR ROENTGEN'S RADIATION.

CHAPTER II.

GLASS-GRINDING AND OPTICIANS' WORK.

§ 61. Details of the Process of Fine Grinding.

§ 62. Polishing.

§ 63. Centering.

§ 65. Preparing Small Mirrors for Galvanometers.

§ 66. Preparation of Large Mirrors or Lenses for Telescopes.

§ 69. The Preparation of Flat Surfaces of Rock Salt.

§ 70. Casting Specula for Mirrors.

§ 71. Grinding and polishing Specula.

§ 72. Preparation of Flat Surfaces.

§ 73. Polishing Flat Surfaces on Glass or on Speculum Metal.