60. Revarnishing with the Brush for Rebiting 39
61. Rebiting a Remedy only 39
62. Holes in the Ground 39
63. Planing out Faulty Passages 40
64. Acid Spots on Clothing 41
65. Reducing Over-bitten Passages and Creves 41

CHAPTER VI.

DIFFERENCE BETWEEN FLAT BITING AND BITING WITH STOPPING OUT.

66. Two Kinds of Biting 43
67. Flat Biting.--One Point 44
68. Flat Biting.--Several Points 44
69. Biting with Stopping Out.--One Point 44
70. Biting with Stopping Out.--Several Points 44
71. Necessity of Experimenting 45
72. Various other Methods of Biting 45

CHAPTER VII.

RECOMMENDATIONS AND AUXILIARY PROCESSES.--ZINK AND STEEL
PLATES.--VARIOUS THEORIES.

A. _Recommendations and Auxiliary Processes._

73. The Roulette 49
74. The Flat Point 49
75. The Graver or Burin 49
76. Sandpaper 50
77. Sulphur Tints 50
78. Mottled Tints 51
79. Stopping-out before all Biting 51

B. _Zink Plates and Steel Plates._

80. Zink Plates 52
81. Steel Plates 52

C. _Various other Processes._

82. Soft Ground Etching 52
83. Dry Point Etching 53
84. The Pen Process 54

CHAPTER VIII.

PROVING AND PRINTING.

85. Wax Proofs 55
86. The Printing-Press 55
87. Natural Printing 56
88. Artificial Printing 56
89. Handwiping with R