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apprenticeship in the field, and
thereby enabled him to appre-
ciate the labors of fellow
workers, by encluding them with
his own (giving due credit). And
even if the collecting of the
specimens and facts in any in-
vestigation be due entirely to
he who gives this material to
others to investigate, it does not
detract in the slightest degree from
the merit of the patient worker
whose name must always be as-
sociated with the first discovery
and announcement of the facts.
If the feild laborer be able him-
self to do the closet work well
and good; it is much best that
he should do it; if however he
prefer to continue his life in
the fields and woods, and leave
the drudgery to others, Capt.
Reed should not object.

As to classification of
Mammals by the teeth, no one
makes this the exclusive
basis; but the dental and os-
teological structure are so conve-
nient as to be most prominently
brought forward. If Capt. Reed
has any better arrangement let
him bring it forward, but what
is he to do with and for the
fossil species which can only