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REFERENCE BOOKS. 



HUMBOLDT LIBRAET OF SCIENCE. 



T'lowers, Fruits and Leaves, 



Pleasures of Life, 



Beauties of Nature, . 



Darwinism, 



The Wonders of the Heavens, 



Light Science for Leisure Hours, 



History and Scope of Zoology, 



Distribution of Life, . 



The Forms of Water, 



Modern Theory of Heat, 



Facts and Fictions in Zoology, 



The Childhood of the World, 



The Birth and Growth of the Myth, 



Man's Place in Nature, 



Nature Studies — Flame, 



Geological Sketches, . 



Familiar Essays on Scientific Subjects, 



The Origin of the Species, . 



The Moral Teachings of Science, . 



Nature Study, 



Thinking, Feeling, Doing, 



The Earth and Man, 



Realm of Nature, 



Ascent of Man, 



Ethics of the Dust, . 



Moths and Butterflies, 



General Methods, 



Morning Talks, 



In the Child World, . 



Siv John Lubbock 



Alfred Russell Wallace 



Camille Flammarion 



Richard A. Proctor 



E. Ray Lankester 

 Alfred Russell Wallace 



John Tyndall 



Gerald Molloy 



Andrew Wilson 



Edward Clodd 



Thomas Huxley 



F. R. Eaton Lowe 

 Archibald Geike 



Richard A. Proctor 

 Thomas Huxley 



Wilbur S. Jackman 



E. W. Scripture 



Guyot 



Mills 



Henry Drummond 



Ruskin 



. Julia Ballard 



Charles Mo Murray 



Sarah Wiltse 



Emile Poultson 



