In indexes and notes, passim indicates that a particular name or subject occurs frequently throughout a particular piece of writing or section of a book.
...The Theories of their Relation (London, 1873), p. 8 and passim.
passim in British English
Latin (ˈpæsɪm)
adverb
here and there; throughout: used to indicate that what is referred to occurs frequently in the work cited
passim in American English
(ˈpæsɪm)
Latin
adverb
here and there; in various parts (of a book, etc.)