Records of fourteen varieties of almonds grown in the same orchard under
similar conditions of soil and culture have been kept at the University
Farm at Davis, for the years 1913 to 1916, inclusive. These trees are all
of the same age, except the Texas, Peerless and Harriott, which are one
year younger than the others. These figures show that there is a wide
variation within varieties from year to year, not only as regards size,
but proportion of shell to whole nut, and in the proportion of double
kernels.
Table X shows the variation in size from year to year, as indicated by
the number of nuts per pound. Five-pound samples of each variety were
used to determine the average size: