XHE HU/VIBOLDX LIBRARY OF^ SCIENOIB 



is the only publication of its kind, the only one containing popular scientific works at low prices. For the most part 

 it contains only works of acknowledged excellence, by authors of the first rank in the world of science. In this series 

 are well represented the writings of Darwin, HuxIey, Herbert Spenccr, Tyndall, Proctor, and other leaders of 

 thought in our time. The books are Complete and Unabridged Editions, in Neat Paper Covers. Price, I 5 cents a 

 number. Double numbers, 30 cents. Twenty-four numbers at 15 cents for ^3.00, double numbers counting as two 

 at I 5 cents. Extra numbers same rate. No charge for mailing. 



1 Light Science for Leisure Hours Proctor 



2 Forms of Water in Clouds; Rivers, etc Tyndall 



Double number — 30 cents. 



3 Physics and Politics Bagehot 



4 Man's Place in Nature Huxley 



5 Education: Intellectual, Moral, Physical Spencer 



6 Town Geology Kingsley 



7 The Conservation of Energy Stewart 



8 The Study of Languages Marcel 



9 The Data of Ethics Spencer 



10 Theory of Sound in Relation to Music Blaserna 



11 [The Naturalist on the River Amazon. ) Bates 



12 j Two numbers in one — 30 cents. j 



ij Mind and Body Bain 



14 The Wonders of the Heavens Flammarion 



15 Longevity: Means ot Prolonging Life Gardner 



16 On The Origin of Species Huxley 



17 Progress: Its Law and Cause Spencer 



18 Lessons in Electricity Tyndall 



19 Familiar Essays on Scientific Subjects Proctor 



20 The Romance of Astronomy Miller 



21 The Physical Basis of Life Huxley 



22 Seeing and Thinking Clifford 



23 Scientific Sophisms Wainw right 



24 Popular Scientific Lectures Helmholtz 



25 The Origin of Nations Rawlinson 



26 The Evolutionist at Large Grant Allen 



27 The History of Landholding in England Fisher 



28 Fashion in Deformity Flower 



29 Facts and Fictions of Zoology Wilson 



30 The Study of Wor4s.— Part I.) t h 



31 The Study of Words.— Part II. J 1 rencn 



32 Hereditary Traits Proctor 



33 Vignettes from Nature Grant Allen 



34 The Philosophy of Style Spencer 



35 Oriental Religions Caird 



36 Lectures on Evolution Huxley 



37 Lectures on Light Tyndall 



38 Geological jSketches.— Part 1.1 ... 



39 Geological Sketches.— Part II. j Geikie 



40 Scientific Evidence of Organic Evolution Romanes 



41 Current Discussions in Science Williams 



42 History of the Science of Politics Pollock 



43 Darwin and Humboldt Huxley — Agassiz 



Wallace 



44 The Dawn of History. — Part 1.1 



45 The Dawn of History.— Part II. J '^"'■>' 



46 The Diseases of Memory Ribot 



47 The Childhood of Religions Clodd 



48 Life in Nature Hinton 



49 The Sun: Its Constitution, Phenomena, etc Carr 



50 J Money and the Mechanism of Exchange. Twol , 



51 1 Parts.— I ; cents each. / J«^°"s 



52 The Diseases of the Will Ribot 



53 Animal Automatism Huxley 



54 The Birth and Growth of Myths Clodd 



55 The Scientific Basis of Morals Clifford 



56 Illusions: A Psychological Stuay. Part 1.1 ... 



57 Illusions: A Psychological Study. Part 11./ ^""^ 



58 The Origin of Species. 1 Two Parts. 1 _ 



59 The Origii of Species./ 30 cei.ts each./ Darwin 



60 The Childhood of the World Clodd 



61 Miscellaneous Essays Proctor 



62 The Religions of the Ancient World Rawlinson 



Double number. — 30 cents. 



63 Progressive Morality Fowler 



g.f Distribution of Life, Animal and Vegetable, in 1 Wallace 



*( Space and Time / Dyer 



65 Conditions of Mental Development Clifl^ord 



66 Technical Education Huxley 



67 The Black Death Hecker 



,5,/Laws in General— Origin of Animal Worship— 1 „ 



"^\ Political Fetichism.— 10 cents. | Spencer 



69 Fetichism. Contribution to Anthropology Schultze 



Double number. — 30 cents. 



70 Essays, Speculative and Practical Spencer 



71 Anthropology Wilson 



72 The Dancing Mania of the Middle Ages Hecker 



7} Evolution in History, Languageand Science. .Various Authors 

 74-77 Descent of Man. 4 numbers. 75c Darwin 



78 Distribution of Land in England Birkbeck 



79 Scientific Aspects of Familiar Things Williams 



80 Charles Darwin: His Life and Work Grant Allen 



Double number. — 30 cents. 



81 Mystery of Matter— Philosophy of Ignorance Picton 



82 Illusions of the Senses Proctor 



83 Profit-sharing between Capital and Labor .......Taylor 



84 Studies of Animated Nature 



85 The Essential Nature of Religion Picton 



86 The Unseen Universe Clifford 



87 The Morphine Habit (Morphinomania)..... .....".'. Ball 



88 Science and Crime Wilson 



89 The Genesis of Science ... .Spencer 



123 



90 Notes on Earthquakes Proctor 



91 The Rise of Universities Laurie 



Double number. — 30 cents. 



92 The Formation of Vegetable Mould Darwin 



Double number. — 30 cents. 



93 Scientific Methods of Capital Punishment Bleyer 



94 The Factors of Organic Evolution Spencer 



95 The Diseases of Personality Ribot 



96 A Half-Century of Science Huxley 



97 The Pleasures of Life. — Part i Lubbock 



98 Cosmic Emotion — Teaching of Science Clifford 



Special number. — 10 cents. 



99 Nature Studies Lowe and Others 



100 Science and Poetry Wilson 



loi /'Esthetics — Dreams Sully 



102 Ultimate Finance. — Part I Black 



103 Coming Slavery Spencer 



104 Tropical Africa Drummond 



105 Freedom in Science and Teaching Haeckel 



106 Force and Energy Grant Allen 



107 Ultimate Finance. — Part II Black 



108 1 English: Past and Present Trench 



109/ Two numbers. — 45 cents. 



1 10 The Story of Creation Clodd 



Double number. — 30 cents. 



111 The Pleasures of Life. — Part 11 Lubbock 



112 The Psychology of Attention Ribol 



113 Hypnotism: History and Development Bjornstrom 



Double number. — 30 cents. 



(Christianity and Agnosticism. A 1 Huxley, Bishop of 



'* \ Controversy / Peterboro,& Others. 



Double number. — 30 cents. 



115 j Darwinism. Exposition of the Theory of 



116 ( Natural Selection 



Two double numbers. — 30 cents each. 



117 J Modern Science and Modern Thought Laing 



118 1 Two Parts.— 45 cents. 



119 The Electric Light — The Storing of Electrical Energy. MoUoy 

 j The Modern Theory of Heat — The Sun as a I ,, ,, 



120 i c. u r n f MoUoy 

 ) Storehouse of Energy ) ' 



121 Utilitarianism John Stuart Mill 



J Origin of Alpine and Italian Lakes. ~k Ramsay, Ball, Mur- 



I Parti. — 30cents I chison, Studer. 



/Origin of Alpine and Italian Lakes, f Favre, Whymper, 

 ( Partll. — 15 cents J Spencer. 



124 The Quintessence of Socialism SchafHe 



J Darwinism and Politics Ritchie 



' 1 Administrative Nihilism Huxley 



126 j Physiognomy and Expression Mantegazza 



127 \ Two double numbers. — 30 cents each. 



iz8 j The Industrial Revolution in England Toynbee 



129 I Two double numbers.— 30 cents each. 



130 J The Origin of the Aryans Taylor 



131 I Two double numbers. — 30 cents each. 



132 j The Evolution of Sex Geddes — Thomson 



133 1 Two double numbers. — 30 cents each. 



134 The Law of Private Right. — 30 cents Smith 



135-138 Capital Karl Marx 



Four double numbers. — 30 cents each. 



139 Lightning, Thunder MoUoy 



140 What is Music? Rice 



141 Are the Effects of Use and Disuse Inherited? Ball 



142 J A Vindication of the Rights of Woman. . .WoUstonecraft 

 145 / Two double numbers. — 30 cents. 



144 Civilization: Its Cause and Cure Carpenter 



145 Body and Mind Clifford 



146 Social Diseases and Worse Remedies Huxley 



147 The Soul of Man Under Socialism Oscar Wilde 



_ „ i Electricity, the Science of the Nineteenth Cen- | ^ •,, , 

 140 A . D , 1 . r Caillard 



^ I tury. — Parti. — 30 cents. j 



149 Electricity, etc. — Part 11. — 15 cents Caillard 



ito J Degeneration: A Chapter in Darwinism.— ) , T_i,.„,.r 



'5° I Illustrated j-Lankester 



151-158 Mental Suggestion Ochorowicz 



Four double numbers. — 30 cents each. 



1 59 Modern Science — Science of the Future Carpenter 



160 Studies in Pessimism Schopenhauer 



161 J Flowers, Fruits and Leaves. — Illustrated Lubbock 



162 I Double number. — 30 cents. 



163 J Glimpses of Nature. — Illustrated Wilson 



164 / Parti. — 30 cents. 



165 Glimpses of Nature. — Part II Wilson 



166-168 Problems of the Future Laing 



Three numbers. — 75 cents. 



169 The Moral Teachings of Science Buckley 



170 The Wisdom of Life Schopenhauer 



Double number. — 30 cents. 



171 The Mystery of Pain Hinton 



172-175 What is Property? Proudhon 



Four double numbers. — 30 cents each. 



176 History and Scope of Zoology Lankester 



177 Evolution and Ethics Huxley 



THE HU/yiBOLDTT LIBRftR^t^. e 4- Fifth /\\/enue. INe\A/ York. 



