AT =

146 NOTE ON METHOD

in NORGC, 1945, no clue is given concerning the method of sample
selection, and several findings are questionable as a result.

In short, this report is based upon a group of studies which
do not represent methodological perfection, yet some generaliza-
tions about the use of libraries had to be drawn from them. Care
was taken throughout the report to allow for technical deficien-
cies. At the same time, every effort was made to “squeeze” the
material for all it was worth. This meant that the author’s judg-
ment came to bear at many points of interpretation. The reader
should keep these considerations in mind.