74 NEW YORK STATE MUSEUM 
a distance, the pines being 8 to Io inches in diameter, a few of the 
larch have succeeded, but the spruce have remained suppressed from 
the first and are but 2 or 3 feet tall beneath the pines. That they 
have all lived shows the wonderful power of spruce to withstand 
suppression. Beginning at the top, Oberforster Krutina, who is 
in charge of the Heidelberg forests, started a few years ago grad- 
ually to take out the pine, with the result that the spruce has 
developed rapidly and has apparently lost nothing in vigor due to 
its half century of suppression. 
The growing stock of the Heidelberg city forest has more than 
doubled in the past 75 years, as has also the annual cut. It is a 
startling surprise to read in detail, from the working plans, the 
amount and variety of forest products that this city forest produces 
annually, with the maximum production apparently not yet in sight. 
On the brow of the high plateau to the south of the city and 
looking toward the Rhine river valley is a forest experimental tract 
which contains even-aged stands of Douglas fir, Engelmann spruce 
and other exotic species. The arboretum contains many interesting 
groups of trees and shrubs, among them being Juniperus sa- 
bina, Juniperus virginiana, Tsuga canadensis, 
Cedrus atlantica, Sequoia washingtontamauee 
inches in diameter and 37 years old), Nyssa sylvatica, 
Ginkgo biloba, Abies polita, Abies pinsapo, 
Pinus peuce, Pinus monticola, Pinus lanmber 
tiana, Thuya ‘plicata, Thuya’ ‘occidemiaiien 
Chamaecyparis lawsoniana, Cedrus dea@ame 
Hicoria alba, and many others. 
