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FIG. 32. Sketch showing the setting out of the tapping lines with 



a straight edge 92 



33. Sketch showing tapping systems for trees of different girth 93 



n 34. Sketch showing tapping of young trees 94 



35. Sketch showing guide lines 95 



36. Examples of bad tapping 96 



37. Use of the Gouge 102 



a 370. Improved Jebong Knife 104 



38. Use of the Push and Pull Knife facing 104 



380. Push and Pull Knife 105 



38^. Marker 106 



38*:. Tapping Knives with square or straight cut 106 



39. Pan for coagulation 126 



40. Showing the rubber coagulated, floating on the surface. 



facing 127 



