Letourneau crusher, showing surface cover after crusher has passed, and type of stand being crushed. Black Brook, J.D. Irving.

Letourneau crusher showing nature of surface after crusher has passed, very little disturbance. Black Brook, J.D.Irving.

Letourneau crusher, view from rear showing stand it is crushing. Black Brook, J.D.Irving.

Letourneau crusher in hardwood cutover. N.B. heavy residual stand, Black Brook, J.D.Irving.

Lindhov - Pinus sylvestris - 100 yr.

Lindhov - Pinus sylvestris - 100 yr.

Hietikon - clearing more land for plastic greenhouses

Hietikon - Pinus sylvestris in paper pots

Hietikon - 1+0 Pinus sylvestris in temporary plastic house

Hietikon - supports for frames of plastic greenhouses