io6 Implements, etc. 



on the successive trees of a row of standards, may be durably num- 

 bered on red cedar, after the following manner, to correspond with 

 a written register in a book. Fig. 155 shows the mode of notching 

 with a knife, to indicate the ten figures. To prevent mistakes by 

 getting them inverted, they are always read downwards on a stake, 

 or from the loop of a suspended label. The preceding figure 

 (156) exhibits a label on a tree marked with the number 47. 



