60 
The illustrations made from photographs of plats (see frontispiece 
and page 51) taken at midsummer show how completely the ground 
was shaded in the second year, in plantings 2 by 3 and 3 by 3 feet. 
COLORADO. 
The State Agricultural College of Colorado is located at Logan, 
about 70 miles north of Denver, and 5 miles east of the foothills of 
the Rocky Mountains. The college farm is a slightly rolling tract 
of land. The field assigned for forestry experiments is almost level, 
except for a slight draw which extends diagonally across it (Plate 
III). The main irrigating ditch which waters a number of farms below, 
borders the forestry field on one side, the field itself being irrigated by 
a lateral taken from the ditch at a higher level. The soil is a clay loam, 
with stiff clay subsoil. It contains so much alkali that few crops would 
erow in it, though a good crop of beets was produced on a part of the 
field in 1895, with very little irrigation. 
THE PLANTING OF 1896. 
Five acres were plowed very deep in the autumn of 1895, and thor- 
oughly harrowed just before planting began, late in April, 1896. Itwas 
impossible to get water on the plats for a month after planting, so that 
the stand was very poor. In Augusta grasshopper raid destroyed most 
of the living trees, and three of the plats were abandoned. The remain- 
ing plats were reset in the spring of 1897 on a different plan, the varieties 
originally planted not being available. In replanting, the living trees 
were not disturbed. Only the two plats thus replanted are reported. 
PLAT 1.—1 acre, 2 by 3 feet, 7,260 trees. 
Original plan: 
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