— 14 — 
The number of analyses seem to have been small, but 
the samples were representative of the tour lots grown; and 
while the percentage of sugar varied considerably the re- 
sults were considered satisfactory, indicating that beets of 
good quality can be grown in Colorado, and that the yield 
is large. 
The study was continued the following year (1889) on a 
somewhat different line, i. e., to determine the effect of dif- 
ferent soils upon the ash constituents and percentage of 
sugar in the beets; also to determine the feeding value of 
the tops and the relation of the weight of the tops to the 
sugar content of the beet. The second object of this ex- 
periment was defeated by an early frost which killed the tops. 
A further object was to study the distribution of the 
sugar in transverse sections of the beets and the relation of 
the specific gravity of the juice to the sugar content. 
In order to establish the first point, the relation of the 
ash and its constituents to the soil in which the beets grew, 
the ashes of two varieties of beets, one lot of each, grown 
upon rich and poor soil respectively, were subjected to 
analysis. Just what is meant by poor soil and rich soil is 
not definitely stated and so far as I can learn, the soils were 
not analyzed. In one paragraph the terms fertilized and 
unfertilized are used as explanatory of rich and poor, but 
the rest of the record seems to justify the inference that the 
term poor, is used in its ordinary signification, and rich to 
indicate a productive condition of the soil, but not a con- 
dition produced by the application of manure or other fer- 
tilizer immediately prior to the growing of this crop. 
The following data show that the Silesian appropriated 
nearly one-fifth more mineral constituents and the Imperial 
over one-half more from the rich than from the poor soil. 
The Silesian, grown on poor soil, contained 1.08 per cent., 
but grown on rich soil, it showed 1.28 per cent. And the 
Imperial, grown under similar conditions, contained 0.801 
per cent., and 1.234 per cent., respectively. 
There is a difference both in the amount of ash con- 
tained in the beets and in its composition, according to the 
quality of the soil on which the beets are grown. The per- 
centages of phosphoric acid and lime are higher in the case 
of beets grown on poor soils, but the percentage of potash is 
higher in those grown on rich soils. 
The experiment was not conclusive in regard to the 
effect of the two soils upon the percentage of sugar. The 
