800 DIGGING TREES BY MACHINERY. 



enclose the tree. The process of liftmg is ex- 

 ceedingly simple, the whole being accomplished by 

 the power of the screw. The screws are four in 

 number, and so arranged as to make them lift 

 equally. They are made fast to the beams of the 

 frame, and are worked by men standing on planks 

 across the beams of the carriage. The frame and 

 enclosed mass are slowly raised, and the tree, with 

 gentle oscillation, moves erectly upwards. The tree 

 may, it is evident, be raised without the use of any 

 ropes, — the solid mass of earth efiectually balancing 

 the trunk and branches, — but they were used on 

 this occasion as an extra precaution. After about 

 twenty minutes' working of the screws, the tree was 

 completely raised from the pit, the operation having 

 been effected in an easy and gradual manner, and 

 amidst tributes of admiration from all around. It 

 was not the intention to remove the tree exper- 

 imented upon ; but the means of removal being 

 exhibited and explained, all seemed satisfied with 

 the feasibility of the apparatus provided for the 

 purpose. A strong case was shown for the enclos- 

 ure of the ball of earth when the tree is to be 

 removed to any distance. In moving, the tree still 

 maintains its erect position. The propelling power, 

 when horses cannot be used, is by a winch in front 

 of the foremost cart, and block and tackle ; but 

 when the way is clear and the road good, horses 

 will do the work safely, and more expeditiously. 



