TIMBER-FELLING, 



Fig. 74. 



283 



Throwing with Common Jack. 



pulleys and tackle can be used with similar effect. On marshy 



Fig- 75- 



The Chain- Lever or Wood-Demon. 

 Fig. 76- 



ground additional stability can be given by mooring the chain 

 A to a series of posts, as shown in Fig. 76. 



