So The: Colorado Experiment Station 
could not have been affectd in any way by the nitrate applied to our 
plots. The soil samples taken throughout the season were shallow 
ones and at no time showed an excessive amount of nitrates. 
There are no data known to me definitely showing how much 
nitric nitrogen is usually present in a good beet, but judging from 
the amount of nitric nitrogen found in samples of Bohemian molas¬ 
ses there could not have been a determinable quantity in the beets 
themselves. This assumes of course that the whole of the nitric 
nitrogen passes into the diffusion juices and is not destroyed during 
their treatment. This is in accord with the observation of others 
in regard to nitrates in beets, except in Tegard to French beets 
which have been found to contain appreciable quantities of nitric 
nitrogen. The maximum that I have found given for French beets 
is 0.049 percent. The sample was taken on 30 Oct. and contained 
16.97 percent sugar. This is different from our beets, for we find 
less sugar with such percentages of nitric nitrogen. No statement 
is made as to whether the beets were grown with or without fer¬ 
tilizers. We always determined the nitric nitrogen as nitric oxid 
and absorbed it in a solution of ferrous chlorid, so our results are 
not too high. In the beets grown without fertilizers we find the 
nitric nitrogen constituting in the different samples, 8.3, 9.3, 10.4, 
11.6 and 18.0 percent of the total nitrogen. The lowest percentages 
shown by the table are 0.434 Fort Collins beets, 1.397 Michigan 
beets, and 2.857, beets grown on new sod land near Holly in the 
Arkansas Valley. The sample of Montana beets shows no nitric 
nitrogen. 
The ratio of injurious nitrogen to the sugar falls in three in¬ 
stances to desirably low limits, in six it is moderately high and in 
three it is, I think we may say, decidedly objectionable. I know of 
no reason why Analysis XX should not be considered in this group 
though the sample is quite bad; sugar 12.7, proteid nitrogen 35.82 
percent of the total, amino nitrogen 0.04794, nitric nitrogen 0.04537 
percent of the beet, injurous ash 3.7 per 100 sugar and injurious 
nitrogen 1.07246 per roo sugar, or the latter multiplied by 10 gives 
10.7246 parts injurious nitrogenous substances for each 100 of 
sugar. 
These results obtained with beets grown on good land without 
the application of fertilizers give us the range in the quality of the 
beets which we must expect to meet with under our best conditions. 
The experiments with fertilizers were made in the Arkansas 
Valley on land which we have already described in connection with 
Analysis XV, wherewith we also gave its general composition. The 
available plant food in it is given in the discussion of Analyses 
XXVIII to XXXVII. The results as shown by this statement of 
the relations of the different nitrogen factors indicate that a slight 
