may look down with scorn upon a form of criminality which demands
constant mendacity.


[6] loc. cit.



Realizing that pathological lying is a type of delinquency, and
following the rule that for explanation of conduct tendencies one
must go to youthful beginnings, we have attempted to gain the
fullest possible information about the fundamentals of
developmental and family history, early environment, and early
mental experiences. Fortunately we have often been able to
obtain specific and probably accurate data on heredity. The many
cases which have been only partially studied are not included.
Successive cross-section studies have been made in a number of
cases, and it has been possible to get a varying amount of
after-history. Observational, historical, and analytical data
thus accumulated have given us a particularly favorable
opportunity for discerning the bases of this special delinquent
tendency. The results of the various kinds of social treatment
which have been undertaken are not the least interesting of our
facts.

To enumerate the results obtained on the many mental tests given
in most cases seems quite unnecessary for the purpose of this
monograph. We have referred to a few points of special interest
and rarely have designated the results on tests in our series.
In general, the reader probably will be better off with merely