P.A.N.: Vers och Prosa. Stockholm: P. A. Norstedt, 1927. (49D-1363)

Page, Dorothy M. Gathering Storm. New York: International Publishers, 1932. (49D-1361)

Palgrave, Francis T. The Golden Treasury. Washington D. C.: National Home Library Foundation, 1932. (49D-1362)

Pancoast, Henry S. The Vista of English Verse. New York: H. Holt, 1911. Inscribed to Dreiser. (49D-1364)

Pares, Bernard. Harmondsworth: Allen Lane, 1940. (58D-274)

Parker, Cornelia. More Ports, More Happy Places. New York: Boni and Liveright, 1926. (49D-1365)

Parker, Dorothy. Collected Poems: Not so Deep as a Well. New York: Viking Press, 1936. (49D-1368)

Parker, Dorothy. Enough Rope. New York: Boni and Liveright, 1927. Inscribed to Dreiser by "Maudie." (49D-1366)

Parker, Dorothy. Enough Rope. New York: Boni and Liveright, 1927. (49D-1367)

Parsons, Cornelia M. The Quaker Cross. New York: National Americana Society, 1911. Marginalia. (49D-1369)

Part Time Girl. New York: Dodd, Mead, 1932. (49D-1370)

Parton, James. The Life and Times of Aaron Burr. New York: Mason Brothers, 1858.

Patterson, Joseph. Rebellion. Chicago: Reilly and Britton, 1911. (49D-1371)

Payne, John. Charles the Second; or, The Merry Monarch. New York: Samuel French, n.d. (49D-1373)

Payne, William. The Losing Game. New York: G. W. Dillingham Company, 1910. (58D-275)

Pearson, Drew. More Merry-go-round. New York: Liveright, 1932. (49D-1375)

Pearson, Drew. Washington Merry-go-round. New York: H. Liveright, 1931. (49D-1374)

Peattie, Donald C. Green Laurels, The Lives and Achievements of the Great Naturalists. New York: Simon and Schuster, 1936. Underlining and marginalia. (49D-1376)

Peckham, George W. Wasps, Social and Solitary. Boston: Houghton Mifflin, 1905. (49D-1377)

Penfold, Saxby. Why a Roman Catholic Cannot Be President of the United States. New York: Saxby Penfold, 1928. Underlining and typed notes. (49D-1378)

Pepys, Samuel. Passages from the Diary of Samuel Pepys'. Ed. Richard Le Fallienne. New York: Modern Library, 1921. (58D-276)

Petronius, Arbiter. The Satyricon of Petronius Arbiter. Trans. Oscar Wilde. Chicago: Boni and Liveright, 1927. Limited edition, number 812 of 960. (49D-1379)

Petronius, Arbiter. The Satyricon of Petronius Arbiter. Trans. W.C. Firebaugh. New York: Boni and Liveright, 1922. (49D-1380)

Phelan, James L. Museum. New York: William Morrow, 1937. (49D-1381)

Philadelphia Museum of Art. William Blake, 1757-1827: A Descriptive Catalogue. Philadelphia: Philadelphia Museum of Art, 1939. (49D-1382)

Philip, George. Philips' Handy-volume Atlas of the World. London: The London Geographical Institute, 1921. (49D-1383)

Phillips, David G. The Hungry Heart. New York: Grosset and Dunlap, 1909. (49D-1384)

Phillips, David Graham. Old Wives for New. New York: Groset and Dunlap, 1908. (58D-277)

Phillips, David G. Susan Lenox, Her Fall and Rise. New York: D. Appleton, 1920. (49D-1385)

Phillips, David Graham. Susan Lenox, Her Rise and Fall. New York: D. Appleton and Company, 1920. (58D-278)

Phyfe, William H. Twelve Thousand Words Often Mispronounced. New York: G. P. Putnam's Sons, 1911. (49D-1386)

Piatakov, Georgii L. Report of Court Proceedings in the Case of the Anti-Soviet Trotskyite Centre. Moscow: People's Commissariat of Justice of USSR, 1937. (49D-1387)

Pierson, Nita. Sonnets of My Life. San Francisco: Philopolis, 1916. Inscribed to Dreiser by author with a signed poem. (49D-1388)

Pitkin, Walter Boughton. The Secret of Achievement. New York: Grosset and Dunlap, 1930. (58D-279)

Platonov, Sergei Fedorovich. History of Russia. Trans. E. Aronsberg. Ed. F. A. Golder. (58D-280)

Plumb, Glenn. Industrial Democracy. Washington D. C.: International Association of Machinists, 1921. Inscribed to Dreiser by the author. Underlining. (49D-1389)

Plutarchus. Plutarch's Lives of Celebrated Greeks and Romans. Philadelphia: Henry Altemus, 1899. (49D-1390)

Poe, Edgar Allan. Best Known Works. New York: Blue Ribbon Books, 1927. (49D-1390)

Poe, Edgar Allan. The Best Tales of Edgar Allan Poe. Ed. Sherwin Cody. New York: Boni and Liveright, 1924. (49D-1392)

Poe, Edgar Allan. Ligeia und Andere Novelien. Berlin: Im Propulaen-Verlag, 1920. (49D-1393)

Poe, Edgar Allan. The Raven and Other Poems. New York: Little Leather Library, n.d. (49D-1394)

Poe, Edgar Allan. The Works of Edgar Allan Poe. Richmond Edition. Vol. 10. New York: Pearson, 1902. (49D-1395)

Poetry Quartos: Twelve Separate Brochures by Taggard, Frost, Lindsay, Robinson, Untermeyer, Kreymborg, H.D., Wylie, Dreiser, Benet, Aiken, and Bynner. Silvermine, CT: Random House, 1929. Limited edition of 475. (49D-1397)

Poetry Review, 27:2 (March-April 1936). London: The Poetry Society, 1936. (49D-1396)

Polakav, Walter N. The Power of Age: Its Quest and Challenge. New York: Covici-Friede, 1933. Underlining and marginalia. (49D-1398)

Posner, Vladimir. The Edge of the Sword. Trans. Haakon M. Chevalier. New York: Modern Age Books, 1942. Inscribed to Dreiser by the author. (49D-1420)

Poulaille, Henry. Le Pain Quotidien. Paris: Libraire Valois, 1931. Inscribed to Dreiser by the author. (49D-1399)

Powell, Dawn. The Bride's House. New York: Brentano's, 1929. Number 62 of 300 copies signed by the author. (49D-1400)

Powys, John Cowper. The Art of Happiness. New York: Simon and Schuster, 1935. (58D-281)

Powys, John Cowper. Autobiography. New York: Simon and Schuster, 1934. (58D-282)

Powys, John Cowper. The Complex Vision. New York: Bodd, Mead, 1920. (58D-283)

Powys, John Cowper. Confession of Two Brothers: John Cowper Powys and Llewelyn Powys. Rochester, NY: The Manam Press, 1916. Underlining and marking. (58D-54)

Powys, John Cowper. Ducdame. Garden City, NY: Doubleday, Page, 1925. (49D-1401)

Powys, John Cowper. Enjoyment of Literature. New York: Simon and Schuster, 1938. (49D-1402)

Powys, John Cowper. Essays on Emily Bronte and Henry James. Girard, KS: Haldemann-Julius, n.d. Marginalia. (49D-1403)

Powys, John Cowper. A Glastonbury Romance. New York: Simon and Schuster, 1932. (49D-1404)

Powys, John Cowper. In Defense of Sensuality. New York: Simon and Schuster, 1930. (49D-1405)

Powys, John Cowper. In Spite of: A Philosophy for Everyman. London: MacDonald, 1953. Inscribed to Helen Dreiser by John Cowper Powys. (58D-55)

Powys, John Cowper. The Meaning of Culture. New York: W. W. Norton, 1929. (58D-56)

Powys, John Cowper. One Hundred Best Books. New York: G. Arnold Shaw, 1916. (49D-1406)

Powys, John Cowper. A Philosophy of Solitude. New York: Simon and Schuster, 1933. Underlining. (49D-1407)

Powys, John Cowper. A Philosophy of Solitude. New York: Simon and Schuster, 1933. Underlining. (58D-57)

Powys, John Cowper. Samphire. New York: T. Seltzer, 1922. (49D-1408)

Powys, John Cowper. Waymouth Sands. New York: Simon and Schuster, 1934. (49D-1409)

Powys, John Cowper. Wolf Solent. New York: Simon and Schuster, 1929. Notes on box. (58D-284)

Powys, John Cowper. Wood and Stone. New York: Arnold Shaw, 1915. Inscribed to Dreiser by the author. (49D-1410)

Powys, Llewelyn. The Black Laughter. New York: Harcourt, Brace, and Company, 1924. (58D-285)

Powys, Llewelyn. Dorset Essays, with Forty Photgraph by Wyndham Godden. London: John Lane, 1935. (58D-286)

Powys, Llewelyn. Earth Memories. London: John Lane, 1934. (49D-1411)

Powys, Llewelyn. Earth Memories. New York: W. W. Norton, 1938. (49D-1412)

Powys, Llewelyn. Ebony and Ivory. Preface by Theodore Dreiser. New York: American Library, 1923. (49D-1413)

Powys, Llewelyn. Glory of Life. London: John Lane, 1938. (58D-287)

Powys, Llewelyn. Love and Death. New York: Simon and Schuster, 1941. Underlining and marginalia. (49D-1414)

Powys, Llewelyn. Love and Dearth. New York: Simon and Schuster, 1941. (49D-1415)

Powys, Llewelyn. Thirteen Worthies. New York: American Library, 1923. Inscribed to Dreiser by the author. (49D-1416

Powys, Theodore Francis. The Left Leg. New York: A. A. Knopf, 1923. (49D-1417)

Powys, Theodore Francis. Mark Only. New York: A. A. Knopf, 1923. (49D-1418)

Powys, Theodore Francis. Mr. Tasker's Gods. New York: A. A. Knopf, 1925. (49D-1419)

Prevost, Antoine Francois. History of Manon Lescaut. New York: Brentano's, n.d. Inscribed to Dreiser by Walter W. Lange. (49D-1421)

Prikryl, Bohumil. Sibirske Drama. Praha, 1929. (49D-1422)

Principles of Quakerism. Philadelphia: Representative of the Religious Society of Friends for Pennsylvania, 1902. (49D-1423)

Problems of Soviet Literature: Reports and Speeches at the First Soviet Writers' Congress. Moscow: Co-Operative Publishing Society of Foreign Workers in the USSR, 1938. (49D-1424)

Problems of Soviet Literature: Reports and Speeches at the First Soviet Writers' Congress. Moscow: Co-Operative Publishing Society of Foreign Workers in the USSR, 1938. (49D-1424)

Proceedings of the Company of Amateur Brewers. Prattleboro, VT: n.p., 1932. Inscribed to Dreiser as a member of the "Company." (49D-1426)

Proctor, Richard. Other Worlds than Ours. New York: A. L. Burt, n.d. (49D-1427)

Prose Quartos: Six Separate Brochures by Aiken, Anderson, Benet, Bromfield, Dreiser and Van Vechten. New York: Random House, 1930. 1 of 875 copies printed for Random House. (49D-1428)

Przybyszewski, Stanislaw. Homo Sapiens. Trans. Thomas Seltzer. New York: A. A. Knopf, 1915. (49D-1429)

Pücker, Carl Erdmann. How Strong is Britain?. New York: Veritas Press, 1939. Marginalia. (58D-288)

Putnam, George H. Authors and Their Public in Ancient Times. New York: G. P. Putnam's Sons, 1894. (49D-1430)

Putnam, George P. Putnam's Handbook of Universal History. New York: G. P. Putnam's Sons, 1914. Inscribed to Dreiser by Begelow. (49D-1431)

Putnam, Nina. Orthodoxy. Trans. F. S. Arnold. New York: M. Kennerley, 1914. (49D-1432)