PLANTING. 



89 



ing larger plants ; it necessitates only two or three 

 insertions. The semi-conical spade (Fig. 44), inven- 

 ted by Edward Heyer, is so constructed that it 

 requires only one insertion, after which it is turned 

 round its axis, thus separating a ball of earth of an 



Fig. 44. 



Fig. 45. 



inverted conical shape. The instrument can be recom- 

 mended. 



On stony soil a heavy, specially strong spade (Fig. 45) 

 is sometimes used. 



b. Li/ting Plants without Balls of Earth. 



This is best done with the two, three or four-pronged 

 fork (Fig. 31, p. 60), which is inserted from one side 



