| Text | Length |
| Of reproduction | 15 |
| Of religious rites | 18 |
| Of reduced degree | 17 |
| Of recent origin | 16 |
| Of radiation | 12 |
| Of questionable repute | 22 |
| Of questionable honesty | 23 |
| Of questionable character | 25 |
| Of queenly bearing | 18 |
| Of Quechuan extraction | 22 |
| Of quails, rails, etc. | 22 |
| Of punishment | 13 |
| Of public interest | 18 |
| Of prophets | 11 |
| Of projectiles | 14 |
| Of prisons | 10 |
| Of prime quality | 16 |
| Of prime importance | 19 |
| Of primary importance | 21 |
| Of Priam's realm | 20 |
| Of Praxiteles's art | 23 |
| Of practical value | 18 |
| Of practical assistance | 23 |
| Of poorer quality | 17 |
| Of poor sound quality | 21 |
| Of poor quality | 15 |
| Of poetry | 9 |
| Of poetic feet | 14 |
| Of pleasing appearance | 22 |
| Of plants | 9 |
| Of plant pores | 14 |
| Of planetary paths | 18 |
| Of planes and such | 18 |
| Of planes and flying | 20 |
| Of planes | 9 |
| Of pitch | 8 |
| Of pions and kaons | 18 |
| Of Pindar's work | 20 |
| Of Pindar's poems | 21 |
| Of Pierre's country | 23 |
| Of Peter O'Toole's eight Oscar nominations, how many he won | 67 |
| Of Peruvian descent | 19 |
| Of Peru's peaks | 19 |
| Of peripheral body parts | 24 |
| Of perfect happiness | 20 |
| Of pedal bones | 14 |
| Of peas, carrots, etc. | 22 |
| Of Pawnees and Shawnees | 23 |
| Of Paul or Pius | 15 |
| Of past eras: Abbr. | 19 |
| Of particular interest to a completist | 38 |
| Of part of the nose | 19 |
| Of part of the lungs | 20 |
| Of part of the eye | 18 |
| Of part of the ear | 18 |
| Of palm or sole | 15 |
| Of Palaearctic deserts, etc. | 28 |
| Of our surroundings and us | 26 |
| Of our feathered friends | 24 |
| Of otters | 9 |
| Of Oslo origin | 14 |
| Of organic matter | 17 |
| Of or near the pelvis | 21 |
| Of or for planes, blimps, etc. | 30 |
| Of operations | 13 |
| Of open space | 13 |
| Of oneself: Lat. | 16 |
| Of oneself: Fr. | 15 |
| Of one's ___ | 16 |
| Of one's surroundings | 25 |
| Of one's hearing | 20 |
| Of one's forebears | 22 |
| Of one's birth | 18 |
| Of one opinion | 14 |
| Of one of the senses | 20 |
| Of one of the Great Lakes | 25 |
| Of one mind | 11 |
| Of one kind, in chemistry | 25 |
| Of Oman | 7 |
| Of Old Troy | 11 |
| Of Old Scratch | 14 |
| Of Old Norse poetry | 19 |
| Of Old Norse poems | 18 |
| Of old | 6 |
| Of oil | 6 |
| Of Ohio, e.g. | 13 |
| Of official papers | 18 |
| Of of of of of of of of of of | 29 |
| Of odes | 7 |
| Of oceanic movements | 20 |
| Of ocean motion | 15 |
| Of nutrition | 12 |
| Of number eight | 15 |
| Of northern regions | 19 |
| Of Norse writings | 17 |
| Of Norse poetry | 15 |
| Of Nordic stock | 15 |
| Of Nordic literature | 20 |
| Of noon in 1911? | 16 |
| Of noble lineage | 16 |
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