"...[T]he capillary flow of interaction. To say that these
interstitials are documents probably gives them more historical weight
than they should have... Dispatches, apologia, meditations, are all
closer to the mark; fretwork summons the right kind of troubled
ambiguity. More occasional than the longer occasional pieces
collected here, the interstitials are in fact public statements requested
for various settings, a few inward and about my work, a few outward and
about others; some poetical, some didactic, some antic" (4).