These are the titles of the essays in

All-Seeing Nature*... Beginnings of Life, The**... Bird Intimacies... Chance in Animal Life*... Change of Climate in Southern California, The*... Cosmic Harmony, The**... Cosmic Rhythms**... Darwinism and The War***... Desert Note, The****... The Falling Leaves... Flight of Birds, The... Heads and Tails*... Insoluble Problem, An***... Interpreter of Nature, The**... Lawn Birds****... Live World, A***... Maeterlinck on The Bee***... Man a Part of Nature (2 of 2)**... Marcus Aurelius on Death... Midsummer Idyl, A... Misinterpreting Nature***... Mosquitoes and Fleas*... Natural Sculpture***... Nature's Methods*... Nature's Wireless***... Near Views of Wild Life... New Gleanings in Field and Wood (1 of 2)*... Odd or Even***... Original Sources**... Pleasures of a Naturalist, The... Robin, The (2 of 2)***... Ruminations... Sea-Dogs****... Sheaf of Nature Notes, A... Silken Chambers****... Spendthrift Nature**... Strenuous Holiday, A... Sun-Blessed Land, A****... Sunrise*... Under Genial Skies... Unsavory Subject, An*... Weasel, The***... Why and How (2 of 2)***... With Roosevelt at Pine Knot...