56 Cole or (fs System of 



staging 1 8 feet high. The upright timbers 

 next to and on both sides of the wall to be 

 built were 6x6 spruce timber, 5 feet apart, 

 securely fastened across the pit by 2 x 8 plank, 

 sawed exactly to one length, securely fastened 

 near the top, bottom, and centre by one 6-inch 

 round spike in the centre of each 6-x-6-inch 

 cross connection, to give a perfectly flat, firm 

 bearing. The planks running lengthwise were 

 fastened to the uprights in the same manner, 

 care being taken to have the uprights per- 

 fectly perpendicular, without variation in 

 distance between the walls. To insure per- 

 fect accuracy, the inside uprights were spiked 

 together and raised in pairs. Straight timber 

 was selected, and as far as possible straight- 

 grained; the diagonal braces of i x 6 fence 

 boards were used. 



After the inside staging was up, the outside 

 timbers were raised and placed opposite the 

 inside ones, leaving space for the 1 8-inch wall 

 and the plank on each side, also for laths ^ 

 inch thick to be placed between the plank and 

 the uprights, to be taken out each time the 

 plank is raised. The inside and outside up- 

 right timbers, also the outside 4x4 staging, 

 were securely fastened together with i x 6 

 fence board, 6 feet long. Thus the inside 



