54 Twenty—seventl2. Annual Report of the
words the bran cost 13.4 per cent more than the wheat, at
that time.
IV. Several pure bred and grade Holstein co ws were added
to the dairy herd during 1914. The grade Holstein cows .
have been crossed with a Jersey bull in order that we might
study the heredity of characters in the cross and particularly
the milk and butter production resulting from the cross.
V. The late Director M. A. Scovell had an idea that if a.
cow came in heat the period of oestrum would make a con-
siderable fluctuation in her milk and butter fat yield. For `
the past three years accurate records have been made when
cows came in heat during the time their milk and fat tests
were being made. We have found that with some cows this
does cause a considerable variation, while with others it
seems to have very little eHect.
VI. During the summer of 1914, observations were made
with 203 cows to determine whether there is any relation
between the shape and size of the escutcheon and milk and .
butter fat production. The cows included in this study are
owned in Shelby and Fayette Counties. After tabulating
our records we can find no correlation between the escutcheon
and dairy production. Also after carefully tabulating data
regardingthe amount and color of body secretions, we can
find no relation between the secretions and amount of milk
and fat production. Professor C. H. Eckles, of Missouri,
has found, however, that the yellowness of the secretions
indicates the color of the milk.
ln this work we have followed the work of Guenon, of
France, who classified the escutcheons into many forms and
who states that each form is correlated with milk and butter
production. Our records do not verify his conclusions.
However. when two hundred and three records are separated
into ten classes and each class into six or more orders (some
of which are rare) the numbers become so small that one is
not safe in drawing radical conclusions. During the present
summer we hope to secure several hundred additional records.
VII. During the past year 125 cows have been officially
tested for the Advanced Registry Associations representing