Jordan Pollack's 1989 review locates Minsky & Papert's credit/blame-apportionment argument in the 1988 Prologue (roman-numeral p. xiii), and finds no 'credit assignment' in four sampled passages of the 1969 body

Jordan Pollack's contemporaneous 1989 review of the Perceptrons Expanded Edition (Journal of Mathematical Psychology, peer-reviewed) provides a second, independent reader's engagement with the physical 1988 book, using the book's own pagination to distinguish 1969 content from 1988 additions. Pollack recounts Minsky & Papert's account of why perceptron research stalled — "the apportionment of credit (or blame) for incorrect global behavior of a system to specific elements in an interdependent system of such elements" — in a passage whose page anchor is the embedded assertion that perceptrons "had no way to represent the knowledge required for solving certain problems," cited to roman-numeral page xiii; the credit/blame sentence itself is Pollack's unpaginated paraphrase of the same argument, bracketed in his review by Prologue citations at p. xii and p. xiv. Roman-numeral pagination in this edition belongs to the 1988 Prologue ("The View from 1988"), distinct from both the arabic-paginated 1969 body (pp. 1–258) and the arabic-paginated Epilogue (which Pollack cites elsewhere at pp. 247–266). The credit/blame framing therefore reads as 1988-added material.

Separately, Pollack quotes four passages from the arabic-paginated 1969 body as examples of the book's "loaded terms" — at pp. 4, 18, 20, and 231 — and none contains "credit assignment." This is non-exhaustive spot-evidence (four cherry-picked passages, not a full-text scan), but it is an independent contemporaneous data point aligned with the primary-index finding in claim-perceptrons-credit-assignment-only-in-1988-epilogue.

This refines that existing note. Its title says "only in the ... Epilogue," but Pollack's evidence suggests the credit/blame argument is introduced in the 1988 Prologue (p. xiii) and the literal phrase "credit-assignment" is elaborated in the 1988 Epilogue (indexed at scan pp. 316/318). Both are 1988 additions, so the load-bearing conclusion — absent from the 1969 body — is unaffected; but "only in the Epilogue" is too narrow a location claim. The book's 1969/1988 boundary is confirmed structurally by claim-bottou-2017-foreword-perceptrons-chapters-0-13-are-1969, and the retrospective-relabel pattern recurs across claim-werbos-1974-no-credit-assignment-language, myth-structural-credit-assignment-from-minsky-1961, and claim-minsky-1961-named-credit-assignment. The direct-read gap remains at question-verify-perceptrons-1969-credit-assignment-absent.