WOODS AND PLANTATIONS. 



411 



" The first part of Mr M'Glashan's process is to lay down a square 

 frame of T iron a, in size equal to that of the ball to be removed. He 

 then takes cutters &, made of malleable iron, and one foot broad, and three 

 feet deep, or with head and neck four and a half feet, and with holes at 

 different heights for a pin, which regulates their depth to be screwed in, 

 so that they can be made, at very little trouble, to lift any depth of ball 

 from one to three feet. These cutters are driven with wooden mallets 

 into the soil to the depth required all round, and being inserted sloping 

 inwards, they give to the enclosed mass the form of a square blunted 

 wedge. A bar of angular iron c is then laid along the top of the four 



FIG. us. 



rows of cutters, and extension-rods d, going across the frame, force the 

 heads of the cutters apart as far as necessary, and consequently cause the 

 points to converge at the bottom. Two parallel beams e are then laid 

 across the frame, upon which are laid two cross-beams. A clasp or collar 

 / lying hard on these two cross-beams is thus put round the trunk of the 

 tree, which being made tight by screws, as shown in figure, serves to 

 steady the tree and bear a portion of the weight when the lift is taken. 

 The means of raising the mass are a carriage, which also serves the pur- 

 pose of transplantation. It consists of two lojag beams g, which have an 

 open space for wheels to run in, as shown in figure ; the length of the 



