TABLE OF CONTENTS. 



CHAPTER IX. 

 AERONAUTIC OR BALLOONING HAISIT. 



PAGES 



Flying Spiders — Velocity of Fliglit — Attitude of the Aeronautic Spider — FrolicHoine Spi- 

 derlings — In the Air — Controlling the Descent. — The Height of Ascents — Floating 

 Gossamer — Aeronautic Orbwoavers — Flossy Balloons — Modes of Ballooning— Aerial 

 Navigation — The Ilunt.snian Spider — Around the World by the Trade Winds — Spi- 

 ders at Sea — Distribution of Specdes— (ios.san)er Showers — Their Origin — Dr. .Jona- 

 than Edwards — His boyish Studies of Spider T.,ife -Professor Sillinum's Tribute . 2-3()-282 



PART IV.— SENSES OF SPIDERS AND THEIR RELATIONS 

 TO HABIT. 



CHAPTER X. 



THE SENSES OF SPIDERS, AND THEIR OliGANS. 



Spider's Eyes — Ocellus— Structure of Eyes — Orbs made in the Dark — Cocooning in the 

 Dark— Sighting Prey — Night Habits — Color of Eyes — Night Eyes and Day Eyes- 

 Atrophy of Eyes— Cave Fauna — Sensitive to Light— Limited Vision — trood Sight in 

 Saltigrmles— Lubbock's Experiments— Eye Turrets— Eye Tubercles — Sense of Smell — 

 The Peckhams' Experiments— Olfactory Organs— Sense of Hearing— Organs of Hear- 

 ing — Effects of Round — A Disgusted Spider— Communication by Touch — Sensitive- 

 ness to Music — Attracted by a Ijute — The Violin — Beethoven and the Spider — A 

 Natural Explanation -Auditory Hairs— Wagner's Studies— .\re Spiders Mute? — A 

 Male Love Call— Stridulating Crustaceans — Scorpions— Westring's Discoveries — Strid- 

 ulating Theridioids— How Sounds are Made — Mygale stridulans— Uses of Stridula- 

 tion— Mute Mygale— How Tarantula Strikes 283-322 



CHAPTEK XI. . 



COLOR AND THE COLOR SENSE. 



Facts of Spider Colors— Beautiful Spidere— Attoid Jewels— Metallic Hues— Colors of the 

 Shamrock Spider— Color Development in Young— Color and Sex— Moulting Influ- 

 ences — Colors of Age — Effects of Muscular Action — Influence of Sex — Color Con- 

 sciousness — Climatic Influences — Influence of Environment — Mimetic Harmonies- 

 Color of Cave Spiders— Bleached by Sunlight— Color Utility— Industrial Compensa- 

 tions — Warning Colors — Unconscious of Danger — Color Consciousness — Color Sense 

 of Spiders— Spiders prefer Red — Mimicry and Colors — Cocoon Color.s— Prevailing 

 Spider Colors— Color of Silk— Metallic Hues— Color Scales 323-351 



PART v.— HOSTILE AGENTS : THEIR INFLUENCE. 



CHAPTER XII. 



MIMICRY IN SPIDERS. 



Industrial Mimicry — Cutting Ants— Mimetic Trapdoors— Self Protection— Trapdoor 

 Architecture — Moggridge and his Trapdoor Spiders — Tree Trapdoors — Form Mimi- 

 cry of Animals — Ant like Spidere— Value of slight Variation— Darwin's Theory- 

 Sight of Birds — Birds eating Ant.s— English Game Birds at Linton Park — The 



