| Call number | Item |
| B | Philosophy, Psychology, and Religion (Go to start of category) |
| BL-BX | Religion (Go to start of category) |
| BL | Religion: General, Miscellaneous, and Atheism (Go to start of category) |
| BL2715 .B7 D6 | ![[Info]](https://onlinebooks.library.upenn.edu/info.gif) Doubts in Dialogue, by Charles Bradlaugh (HTML at infidels.org) |
| BL2720 .A2 | Lectures of Col. R. G. Ingersoll, by Robert Green Ingersoll |
| BL2725 .R4 | The Bible: I. Authenticity; II. Credibility; III. Morality (New York: Truth Seeker Co., 1907), by John E. Remsburg (Gutenberg text) |
| BL2725 .S6 | Some Mistakes of Moses (tenth edition; Washington: C. P. Farrell, 1889), by Robert Green Ingersoll (multiple formats at archive.org) |
| BL2727 .D5 | Dixon on Ingersoll: Ten Discourses, Delivered in Association Hall, New York (with a sketch of the author by Wheeler, writing as "Nym Crinkle"; New York: J. B. Alden, 1892), by Thomas Dixon, contrib. by A. C. Wheeler (page images at HathiTrust) |
| BL2728 .L4 1957 | Ingersoll the Magnificent (New York: Freethought Press Association, 1957), by Joseph Lewis and Robert Green Ingersoll (page images at HathiTrust) |
| BL2735 | Inspiration and Wisdom from the Writings of Thomas Paine (1954), by Thomas Paine, ed. by Joseph Lewis (HTML at Wayback Machine) |
| BL2735 .A1 1882 | The Theological Works of Thomas Paine (with a life of Paine by Blanchard; Chicago: Belford, Clarke, and Co.; St. Louis: Belford and Clarke, 1882), by Thomas Paine, contrib. by Calvin Blanchard (page images at HathiTrust) |
| BL2740 .A1 | The Age of Reason, by Thomas Paine (Gutenberg text) |
| BL2740 .A2 | Examination of the Prophecies, by Thomas Paine (HTML at infidels.org) |
| BL2747.2 .L54 | The Origins of Agnosticism: Victorian Unbelief and the Limits of Knowledge (originally published 1987; open access edition Baltimore: Johns Hopkins University Press, 2019), by Bernard V. Lightman (multiple formats with commentary at Project MUSE) |
| BL2747.3 .R34 | Positive Atheism, by Gora (HTML at Wayback Machine) |
| BL2747.6 .K88 1980 | A Secular Humanist Declaration (1980), by Council for Democratic and Secular Humanism (Buffalo, N.Y.), contrib. by Paul Kurtz (HTML at secularhumanism.org) |
| BL2747.8 .B63 2006 | Christians: Secularism, Yes and No (Studies in Christian-Muslim Relations v5; Belleville, ON: Essence Publishing, c2004), by Jan H. Boer (with other series volumes: PDF files at socialtheology.com) |
| BL2750 .B8 | A History of Freedom of Thought (c1913), by J. B. Bury (Gutenberg text) |
| BL2750 .L4 1870 | History of the Rise and Influence of the Spirit of Rationalism in Europe (4th edition in 2 volumes; London: Longmans, Green, and Co., 1870), by William Edward Hartpole Lecky (page images at HathiTrust) |
| BL2750 .L4 1919 | History of the Rise and Influence of the Spirit of Rationalism in Europe (revised edition in 2 volumes; New York and London: D. Appleton and Co., 1919), by William Edward Hartpole Lecky (HTML at libertyfund.org) |
| BL2750 .M33 | A History of the British Secular Movement, by John Edwin McGee (HTML at infidels.org) |
| BL2750 .R7 1915 | A Short History of Freethought, Ancient and Modern (third edition, 2 volumes; London: Watts and Co., 1915), by J. M. Robertson |
| BL2757 .P8 | 400 Years of Freethought (New York: Truth Seeker Co., 1894), by Samuel P. Putnam |
| BL2773 .A5 | Reason: The Only Oracle of Man, by Ethan Allen (HTML at infidels.org) |
| BL2773 .D2 1904 | The Three Impostors, Translated (With Notes and Comments) From a French Manuscript of the Work Written in the Year 1716, With a Dissertation on the Original Treatise, and a Bibliography of the Various Editions (editorship attributed to Briggs; 1904), ed. by Samuel Briggs |
| BL2773 .H62 | Christianity Unveiled: Being an Examination of the Principles and Effects of the Christian Religion (London: R. Carlile, 1819), by Paul Henri Thiry Holbach, trans. by W. M. Johnson (HTML at Freethought Archives) |
| BL2773 .H63 | Good Sense Without God: or, Freethoughts Opposed to Supernatural Ideas, by Paul Henri Thiry Holbach (Gutenberg text) |
| BL2773 .H63 1878 | Superstition in All Ages (attributed in this edition to Jean Meslier, but usually acknowledged to be by Holbach; translated 1878), by Paul Henri Thiry Holbach, trans. by Anna Knoop, contrib. by Voltaire (Gutenberg text) |