I

Images collected are not a book, 37. - printed, which ones, 85. - obscene, 79, 4. - sacred, which are new or abnormal, 85. - in memory of a deceased person or of priestly first-fruits, 87.

Immensa aeterni Patris, Constitution of Sixtus V, January 22, 1588, instituting Congregations, 6.

Printing of a book, what? 104. - of apostates, heretics, etc., 125, 8. Solemnities for books subject to censure, 121. - of Sacred Scripture, 126. - its year to be placed in books, 121, 6.

Impressor, 125, 8, 126.

"Imprimatur", whether it infers approval of the book, 104. - how to be given and published, 116.

One printing, who he is, 125, 8; 126.

To impugn, what, 69, 4.

Books of unbelievers, proscribed by special mention, p. 110.

Spanish Index, 5*. - of Leo XIII, 5, 13, 17. Its editions, 13*; preface, 13, 17. Utility of the suppressed Index, 22. - particular of regions, 5. - first Roman, 2, 5. - Tridentine, 5.

Various Indexes, 5. - of pseudo-reformers and politicians, 9. History of the Index, 2-9; utility, 10-12. See also Law.

Congregation of the Index. Origin and office, 6, 28*, 62. Faculties, 95 bis, 124. Formulae, Indults, 134-152. Interpretation of faculties, 97-99. Proscribing works, 28*, 62. Responses concerning errors proscribed by the Syllabus, 84; concerning the reason to be rendered why approval of a book is denied by an Ordinary, 116; concerning spreading excerpts from periodicals, 122.

In the diocese, clause, p. 120*, p. 124*.

Indulgences, apocryphal or revoked, 86. Norms of discerning, p. 94. Books, etc., concerning indulgences, 87. - apostolic, 87.

Indults of the Sacred Congregation of the Index, concerning reading prohibited books, p. 120*, nn. 134-152. - of the Sacred Congregation de Propaganda Fide, 153-166.

In eminenti, Constitution of Clement XII, 1738, concerning masonic sects, p. 86*.

Innocent VIII establishes previous censure, 8.

Innocent XI, condemning the works of Molinos, p. 153.

In hatred of the author, clause, 5, 44.

Sacred Inquisition, see Holy Office.

Inspiration of Sacred Scripture, books treating perversely of it, 75.

Institutiones ecclesiasticae, condemned work of Nuyts, p. 155*.

Instruction of Clement VIII, 19, 113.

Inter multiplices, Constitution of Alexander VI, June 1, 1501, concerning previous censure, 8. - Letters of the Sacred Congregation of the Index, in the name of Pius IX, 63, 64*.

Interpretation of the Constitution Officiorum, 19, 20, 25-27. - of faculties and indults, 96, 97-99.

Inter sollicitudines, Constitution of Leo X, May 4, 1515, concerning previous censure, 8.

So that books are not taken away outside the diocese, clause, 98, 6.