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328 THIRD PERIOD—MODERN TIMES

rather than to external causes acting locally, although these latter may
contribute, together with the general causes, to the producing of the
disease.
Fig. ioi

Campani's ckntal cautt-ries: Tlie large ones for cases of post-extractive hemorrhage; the
small ones for the cauterization of carious cavities.

This author was decidedly averse to the use of the file. For stopping
carious cavities he advises the use of mastic, gum lac, or wax, if the cavity
is large and funnel-shaped; this stopping, however, recjuires to be renewed
fre(juentl\ Hut when the cavity, wider at the bottom, narrows toward
.