TABLE OF CONTENTS. 



CHAPTER IX. 



AERONAUTIC OR BALLOONING HABIT. 



PAGES 



Flying Spiders — Velocity of Flight — Attitude of the Aeronautic Spider — Frolicsome Spi- 

 derlings — In the Air — Controlling the Descent — The Height of Ascents — Filiating 

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

 Navigation— The Huntsman Spider — Around the World by the Trade Winds — Spi- 

 ders at Sea — Distribution of Species— Gossamer Showers — Their Origin — Dr. .Tona- 

 than Edwards — His bovish Studies of Spider Life— Professor Silliman's Tribute . 2-5()-:i82 



PART IV.— SENSES OF SPIDERS AND THEIR RELATIONS 



TO HABIT. 



CHAPTEi; X. 



THE SENSES OF SPIDERS, AND THEIR ORGANS. 



Spider's Eyes — Ocellus— Structure of Eyes — Orbs made in the Dark — Cocouning 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 — Good Sight in 

 Saltigrades— Ijubbock's Experiments — Eye Turrets— Eye Tubercles — Sense of Smell — 

 The Peckhams' Experiments — Olfactory Organs — Sen.se of Hearing— Organs of Hear- 

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

 ness to Music — Atfi-acted by a Lute — The Violin — Beethoven and the Spider — .\ 

 Natural Explanation -Auditory Hairs — Wagner's Studies — Are Spiders Mute? — A 

 INlale Love Call — Stridulating Crustaceans — Scorpions— Westring's Discoverie.s — Strid- 

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

 tion— Mute Mygale— How Tarantula Strikes 28:!-3-.i2 



CHAPTER XL 



COLOR AND THE COLOR SENSE. 



Facts of Spider Colors — Beautiful Spiders — 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 — C'olor Sense 

 of Spiders — Spiders prefer Red — Minucry and Colors — Cocoon Colors — Prevailing 

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



PART v.— HOSTILE AGENTS : THEIR INFLUENCE. 



CHAPTER XII. 



MIMICRY IN SPIDERS. 



Industrial Jlimicry — Cutting Ants — Jlimetic Trapdoors — Self Protection — Trajxloor 

 Architecture — Moggridge and his Trapdoor Spiders — Tree Trapdo(_irs — Form Mimi- 

 cry of Animals — Ant like Spider.s — Value of .slight Variation — Darwin's Tlieory — 

 Sight of Birds — Birds eating Ants — English Game Birds at Linton Park — The 



