James Talks to Teachers Chapter 14

Now apperception is an extremely useful word in pedagogics, and offers a convenient name for a process to which every teacher must frequently refer. But it verily means nothing more than the act of taking a thing into the mind. It corresponds to nothing peculiar or elementary in psychology, being only one of the innumerable results of the psychological process of association of ideas; and psychology itself can easily dispense with the word, useful as it may be in pedagogics. (p.77)


James definition of appreciation reduces it to meaning simply that you take a thing into consideration.  I believe that there is a little more to it than thinking enough about something to give it attention.  He spends the rest of this lecture quantifying appreciation.  His examples of different countries and disciplines interpret then quantify it takes up much of the remaining discussion.  I wonder if much of the discussion here is still applicable, has the definition of appreciation changed?  He does however discusses the importance of youth and the building a foundation that will and can be structurally sound for life