| Entry | Volume | Pages |
|---|---|---|
| Ripley, Dwight: A Journey through Spain | 12 | 38 |
| Ripley, Dwight: A Rare Erigeron | 21 | 208 |
| Ripley, Dwight: A Rock Garden in New York State | 22 | 298 |
| Ripley, Dwight: A Trip through Oregon | 15 | 178 |
| Ripley, Dwight: Colorado 1950 | 19 | 38 |
| Ripley, Dwight: In the Mediterranean | 6 | 219 |
| Ripley, Dwight: Limestone Areas of Southern Nevada and Death Valley | 10 | 18 |
| Ripley, Dwight: More Western Americans | 12 | 65 |
| Ripley, Dwight: Notes From Long Island | 41 | 125 |
| Ripley, Dwight: Notes from Long Island | 40 | 182 |
| Ripley, Dwight: Paunsagunt Plateau | 16 | 15 |
| Ripley, Dwight: Plants for the Cold Greenhouse | 5 | 238 |
| Ripley, Dwight: Plants of S. California and Adjacent Mexico | 11 | 65 |
| Ripley, Dwight: Rarities of Western North America | 10 | 73 |
| Ripley, Dwight: Searching High and Low | 15 | 18 |
| Ripley, Dwight: Some Plants of Southern Europe | 5 | 60 |
| Ripley, Dwight: Some Southern Belles | 18 | 34 |
| Ripley, Dwight: Three Days at Leadville | 17 | 26 |
| Ripley, Dwight: Utah in the Spring | 10 | 168 |