MAYER: COLOR AND COLOR-PATTRERNS. 255 
TABLE OF CONTENTS. 
PART A. 
GENERAL PHENOMENA or Coron IN LEPIDOPTERA. 
I. CLASSIFICATION or COLORS. 
PAGI 
(1) Pigmental Colors : i ; ; ; à h ; : t 169 
(2) Structural Colors j ‘ à i ; : : 1 : « 170 
(3) Combination Colors i $ i ; 1 : : F : 171 
(4) Quantitative Determination of Pigmental Colors : ; i 172 
(5) Spectrum Analysis of Colors of Lepidoptera y ‘ n 173 
(6) Summary of Results |. i 1 : ; ‘ : ‘ , 174 
II. Tun ESSENTIAL NATURE or PIGMENTAL Conor IN LEPIDOPTERA. 
(1) Pigments of Larvae. i ; x i ; 3 í i ; 174 
(2) Pigments of Imagines ‘ . . : : s ; f ` 175 
III. DEVELOPMENT OF THE VARIOUS COLORS rv THE Puran Wryas. 
(1) Historical Account of previous Researches : : x : 4 176 
(2) Development of Color in the Pupal Wings of Callosamia promethea 178 
(3) Development of Color in the Pupal Wings of Danais plexippus 
(archippus) . : : ; 5 x 4 3 5 ; i 180 
IV. Tun Laws WHICH Govern THE COLOR-PATTERNS Or BUTTERFLIES AND 
Morus. 
(1) Historical Account of previous Researches ‘ ‘ : ; : 181 
(2) Laws of Color Patterns : í N h à ; : à 183 
(3) Detailed Diseussion of the Laws of Color-Patterns . à f ; 185 
(4) Origin of Color-Variations x i : : : : : i 189 
Bibliography of Color-Aberrations : : i í : 190 
(5) Climate and Melanism : : : j ; ; : : : 190 
(6) Relation between Climate and Colors of Papilios . à à 1 191 
V, Tre Cacses WHICH HAVE LED TO THE DEVELOPMENT AND PRESERVATION 
OF THE SCALES OF THE LEPIDOPTERA. 
1) Experiments and Theory . ^ ! í : i k ; : 192 
Summary of Conelusions . 1 1 i ; i : i 197 
1 
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PART B. 
COLOR-VARLATIONS IN THE. HIELICONIDAE, 
I. GENERAL Causes WHICH DETERMINE COLORATION IN THE HELICONIDAE., 
IIl. METHODS PURSUED IN STUDYING THE Coron-PATTERNS OF THE 
HELICONIDA I. 
(1) The Two Types of Coloration in the Danaoid Heliconidae 204 
(2) Detailed Description of the Melinaea Type of Coloration 205 
