the Prefect and his cohort fail so frequently, first, by default of
this identification, and, secondly, by ill-admeasurement, or rather
through non-admeasurement, of the intellect with which they are
engaged. They consider only their own ideas of ingenuity; and, in
searching for anything hidden, advert only to the modes in which they
would have hidden it. They are right in this much - that their own
ingenuity is a faithful representative of that of the mass; but when
the cunning of the individual felon is diverse in character from
their own, the felon foils them, of course. This always happens when
it is above their own, and very usually when it is below. They have
no variation of principle in their investigations; at best, when
urged by some unusual emergency - by some extraordinary reward - they
extend or exaggerate their old modes of practice, without touching
their principles. What, for example, in this case of D--, has been
done to vary the principle of action? What is all this boring, and
probing, and sounding, and scrutinizing with the microscope and
dividing the surface of the building into registered square inches -
what is it all but an exaggeration of the application of the one
principle or set of principles of search, which are based upon the
one set of notions regarding human ingenuity, to which the Prefect,
in the long routine of his duty, has been accustomed? Do you not see
he has taken it for granted that all men proceed to conceal a letter,
- not exactly in a gimlet hole bored in a chair-leg - but, at least,
in some out-of-the-way hole or corner suggested by the same tenor of
thought which would urge a man to secrete a letter in a gimlet-hole
bored in a chair-leg? And do you not see also, that such recherchés
nooks for concealment are adapted only for ordinary occasions, and
would be adopted only by ordinary intellects; for, in all cases of
concealment, a disposal of the article concealed - a disposal of it
in this recherché manner, - is, in the very first instance,