Books in Browsing: Environmental Issues (sorted alphabetically)
- Natural & Artificial Sewage Treatment Alfred Stowell Jones and H. Alfred Roechling
- Nordenholt's Million J. J. Connington
- northern whale-fishery William Scoresby
- Nova analysis aquarum Medeviensium (Latin) friherre Jöns Jakob Berzelius
- Old-Time Gardens, Newly Set Forth Alice Morse Earle
- On Naval Timber and Arboriculture Patrick Matthew
- Ontwerp van wet tot afsluiting en droogmaking van de Zuiderzee met toelichtende memorie (Dutch) Cornelis Lely
- Our national forests : a short popular account of the work of the United States Forest service on the national forests Richard H. D. Boerker
- Our Nuclear Future: Facts, Dangers and Opportunities Edward Teller and Albert L. Latter
- Our Vanishing Wild Life: Its Extermination and Preservation William T. Hornaday
- Outlines of a mechanical theory of storms : containing the true law of lunar influence, with practical instructions to the navigator, to enable him approximately to calculate the coming changes of the wind and weather, for any given day, and for any part of the ocean Thomas Bassnett
- Parks for the People Various
- Passaic Flood of 1903 Marshall Ora Leighton
- Pecan Diseases and Pests and Their Control David W. Rosburg and D. R. King
- Philosophy of the Weather. And a Guide to Its Changes T. B. Butler
- Pioneer Woodsman as He Is Related to Lumbering in the Northwest George Henry Warren
- Pleasant Talk About Fruits, Flowers and Farming Henry Ward Beecher
- Poachers and Poaching F.L.S. John Watson
- Powder-Post Beetles in Buildings: What to Do About Them R. A. St. George and T. McIntyre
- Practical Forestry in the Pacific Northwest E. T. Allen
- Practical Methods of Sewage Disposal for Residences, Hotels and Institutions Henry N. Ogden and H. Burdett Cleveland
- Preservation of forests as a measure of public safety Lourenço Baeta Neves
- Preserving Louisiana's Legacy: Everyone Can Help Nancy W. Hawkins
- Principles and practice of agricultural analysis. Volume 2 (of 3), Fertilizers Harvey Washington Wiley
- Proceedings [of the] fourth National Conservation Congress [at] Indianapolis, October 1-4, 1912 United States. National Conservation Congress