Abstract
Several difficulties have been raised concerning applicability of Glymour's model to developing and "un-natural" sciences, those contexts in which he claims it should be most clearly instantiated. An analysis of testing in such a field, archaeology, indicates that while bootstrapping may be realized in general outline, practice necessarily departs from the ideal in at least three important respects 1) it is not strictly theory contained, 2) the theory-mediated inference from evidence to test hypothesis is not exclusively deductive and, 3) structural considerations do not displace or take precedence over substantive considerations. These points of divergence reflect the fact that bootstrapping in developing and exploratory sciences is as much a process of theory construction as of theory testing.