MISSOURI BOTANICAL GARDEN BULLETIN 59 
holes were spaced 10-12 feet apart and were about 3 feet 
south of the flower beds. The charge of one-half stick of dyn- 
amite, a No. 6 cap with 3 feet of fuse, was lowered to bottom 
of hole; charge was tamped gently at first, then harder and 
tighter till hole was filled, and then the fuse was lighted. If 
the sod were blown out of place, the charge should have been 
a few inches deeper. The results can be seen this coming sum- 
mer when the ground is dry. 
In Forest Park, the trees newly planted were formerly set 
in spade-dug holes, with a loss each year of at least 40 per 
cent. Now the holes are blasted and trees planted, with a loss 
of not over 5 per cent. Dynamite has paid the Park Board 
of St. Louis. In blasting holes for trees, the hole should be 
30 inches deep; the charge one-half stick of dynamite; 30- 
inch fuse and No. 6 blasting cap. The shot is the same as a 
subsoil shot, except the hole must be dug afterward. But 
the newly planted tree will have a good start, whereas with 
a spade-dug hole it was problematical. 
Remember, all blasting must be done when the soil is dry. 
SOME INTERESTING FACTORS, RELATIVE TO VOCATIONAL 
TRAINING 
In the Missouri Botanical Garden are fourteen vocational 
students, rehabilitating themselves in landscape gardening. 
The mode of training is different from that in some institu- 
tions in that the mornings are devoted to practical work in 
the different departments, and the afternoons to lectures. 
Our schedule is as follows: 
Oct.-Jan, Monday Wednesday Thursday Friday 
Taxonomic Botany Landscape Weekly Review Plant Materials 
(Kellogg) Design Special Features Tropical Plants 
(Noyes) (Pring) (Pring) 
Feb.-June Entomology Landscape Weekly Review Plant Materials 
(Anderson) Design Special Features Dormant Woody 
(Noyes) (Pring) Plants 
(Jensen & Kellogg) 
Oct.-Jan. Floriculture Landscape Weekly Review Insects, Diseases 
(Pring) Design Special Features and Control 
(Noyes) (Pring) (Kohl) 
Feb.-June Tree Surgery Landscape Weekly Review Soils and 
Forcing Fruits and Design Special Features Fertilizers 
Vegetables under (Noyes) (Pring) (Anderson) 
Glass 
(Pring & Jensen) 
