attempting to estimate the eonstitutents that go to produce gluten In the wheat, 
bul there is so little known as to the location of these proteids In the kernel and 
the relation thai they bear to each other and t<> gluten thai the matter la 
very Indefinite. I'm it was hoped I i ascertain what variation there mighl be 
and t<> throw some lighl on the matter, if possible. The results show thai while 
the percentage of proteid oitrogen increased from 1.89 to 5.16, tli«' percentage of 
gliadin plus gluten in nitrogen increased from 1.76 to 2.20. in other words, 
the increase in the proteid nitrogen contenl was very much greater in pro- 
portion than the increase in the gliadin plus glutenin oitrogen. Therefore 
the percentage of proteid nitrogen is not a guide in selection for the percentage 
<>t gliadin plus glutenin, and it' we are selecting I'm- these proteids we must 
determine them separately, it was further found that as far as the quality 
of gluten may he determined by the proportion of gliadin to glutenin, that 
quality remains practically the same as wo increase the total per cen1 of 
gluten. If the ratio of gliadin p. glutenin indicates the quality of the gluten, 
then in selecting plants of high gluten content we are selecting plants with the 
same quality of gluten as if we are selecting plants of low gluten content. 
There would therefore he no danger of plants deteriorating in the quality of 
gluten if we select plants of high gluten content. 
A study of the relation of the nitrogen content of the parent plant to that o1 
the offspring of the first generation showed that the tendency was for the prog- 
eny to increase in percentage of nitrogen less rapidly than the mother plants, but 
in the same way. thus demonstrating that the selection has an effect. This is an 
important point, hecause if the kernels of the parent plant were immature or 
shriveled they would naturally show a higher nitrogen content, and yet we 
would not expect them to transmit their nitrogen content. If we find, however, 
that there is a transmission of the nitrogen content we know that it is due to a 
healthy condition of the plant and is a factor that can he depended upon in im- 
proving the wheat in this way. 
We found the same tendency toward heredity in the weight of the average 
kernel that we did in the nitrogen content. In other words, plants of a low 
weight of kernel tend to produce plants having low kernel weight, and plants of 
high kernel weight tend to produce plants of higher kernel weight. The varia- 
tion is not so great as it was with the nitrogen content : still it is consistent, or 
nearly so, and the hereditary tendency is carried out. We find that wheal 
varies very greatly in that respect from year to year. The plants, however, 
maintain their relative standing as to weight of kernel. We have found that in 
certain years — notably in dry years — the percentage of nitrogen is very high, 
-while the kernels are apt to be small ; but in spite of that, the production of 
nitrogen per acre is generally greater in dry years than in wet years. In other 
words, the years when we have large crops we do not get as large a production 
per acre of nitrogen in the grain. 
There was a very decided decrease in the yield with the lateness in ripening, 
.and a somewhat marked increase in percentage of proteid nitrogen. 
As the yield of grain on the plant increased the height of the plant increased 
up to a certain point, and then began to decrease: BO that the plants of large 
yield were here plants of medium height In a similar way the plants that 
tillered largely were plants having a medium range of yield, and. as regards the 
weight of the average kernel, the plants of large yield were the plants having a 
kernel of somewhat more than medium or large weight So that the best 
plants appeared to he the plants of average height and the plants that tillered 
most were plants of average yield, although data on this point are somewhat 
limited and do not warrant final conclusions. 
Some observations were made on the effect of winterkilling, which showed 
that there was a constant increase in the yield of the average plant as the num- 
ber of plants that survived increased. In other words, the effect of the freez- 
ing seemed to he to weaken the other plants, or rather, the plants that did sur- 
vive were injured by the cold, to which they were more susceptible than plants 
in the families of which a large percentage survived the winter. 
II. Snyder, of Minnesota. There are one or two points that were brought out 
by the figures that perhaps can be mentioned a second time without detriment, 
and one was that with an increase of nitrogen there was a possibility of a slight 
decrease in yield. Of course, in taking hold of this question it is highly desir- 
able that yield and quality be combined as far as possible. That is one of the 
problems that remains yet to be solved along this line. Another question that 
