KNOWLEDGE 



INDEX OF THE PRINCIPAL ILLUSTRATIONS. 



PAGE 



Aldebaran, Diagram showing Occul- 



tation of, on October 10 230 



Bat, Female and Young of Rough- 

 tailed 259 



Bustard, Display of the Great 2 



Clover, Strawberry-headed ... 19 



Comet b 1902 (Perrine) (full-jiage Plate 



by Dr. Isaac Roberts) ... ... 9 



Comet c 1903 (Borelly) (full-page Plate 



bv Dr. Isaac Roberts) 201 



Comet, 1903, Borelly's, Photographs 



of 231 



Comet, Path of Giacobinis , 70 



Earth Current Register, Greenwich 278 



Earwig, Gizzard of ... ... 285 



Eclipses, Cycles of (Diagrams illus- 

 trating) ... 204, 205, 225 and 226 



Elephants, Teeth of 170 and 171 



Flutings of Cyanogen and Carbon . 272 



Frogs, Vocal Sacs of . 40 



Globe-fish, The Spotted 53 



Heath, St. Dabeoc's 194 



Horse 



Side View of, showing Wliorls of 

 Hair ... .. 4 



Side View of, showing Superficial 

 Muscles ... ... ... ... 5 



Front View of, allowing Superficial 

 Muscles ... ... ... . . fi 



Jupiter and his Markings (full-page 



Plato by W. F. Denning) 178 



Jupiter, Longitudes of the Equatorial 



Spots on . 178 



Magnetic Register, Greenwich^De- 



clination and Horizontal Force 277 



Mars, Diagrams of (By V.. M. 



-Vntoniadi) . . ... 247, 248 and 249 



PAGE 



Mars, Diagrams of the Canals of ,. 2.50 



Mars, Opposition of, 1903 71 



Mars, Telescopic Views of (full- 

 page Plate by E. M. Antoniadi) ... 248 



Mastodon, Skull of 

 Microscope Table 



170 

 261 



Microscopy, Mr. C. F. Rousselet's 



Tank, and Window Aquarium ... 165 



Milky Way, Diagrams of (By C. 



Easton) 154 



Mites, Freshwater 

 Moon, The Path of the 



212 

 34 



Nebula Index Catalogue 405 Auriga 



(full-page Plate by Dr. Isaac 

 Roberts) 81 



Nebula, The " America," in Cygnus 



(full-page Plate by Dr. Mas 

 Wolf) 155 



Orchids, Illustrations of the Sweet- 

 scented, Early Purple, Spotted, 

 Butterfly and Bee Orchis 243—245 



Pea Family, The, Illustration of 18 and 19 



Pycnogonida— 



Ascorhi/ncus glaber,}ioek ... 14 



Ascor\i/nctis tridenSj'Memevt ... 15 

 Mhynchothorax mediterranetis, 



Costa ... ... ... . . 16 



Colossendeis proboscidea (Sabiue) 16 



PJialangium hirsutum, Adams ... 145 



Phanodemus collaris, Costa, ... 147 



Ammothea echinata (Ilodge) ... 148 



Rose Family — Illustrations of 

 Meadow-sweet, Bramble, Alpine 

 Lady's-mantle .. Co, 66 and 67 



St. Sophia. Constantinople (Drawing.s 



and Photographs by E. M. 

 Antoniadi) 27,28,29,50, 51,89, 



90, 91, 103 and 104 



Fidl-pago Plates ... 2S and 102 



Samphire, Photograph and Drawing 



of 98 



Samphire, The Golden 



Saturn, 1902, August 21, llh. 



Sea- Holly, The, at Home 



Spectra, Five Principal Types of ... 



Spectra of Arcturus 



Spectra of S Arietis, Procyon, and 

 Arcturus 



Spectra of Nova Persei, the Sun, 



and Magnesium ... 30, 31 and 32 



PAQE 



162 



271 



99 



80 



12S 



Spectra of o Ceti and a Hercalis 



Spectra of the Sun 



Spectroheliograph, The Rumford, of 

 the Yerkea Observatory 



273 

 273 



230 

 228 

 260 



Spectrum of 3 Crucis . . . 



"Spring-tails" 



Strawberry-Tree on a Kerry Lake- 

 shore 194 



Sun, Photograph of the (full-page 



Plate) 130 



Sun, Photograph of the, in " K light," 

 showing Calcium Clouds (full- 

 page Plate, by G. E. Hale and F. 

 EUerman) ... ... ,,. . 229 



Sun, Photograph of the, 1903, October 



31 (fult-pagc Plate) 276 



Sun, The, 1903, October 12 and 



November i 276 



Sunspots, Photographs ... 13()andl31 



Thistle, Carline 163 



Tortoise, Great South Aldabra 



Tortoise, The Great Marion's (full- 

 page Plate) ... 



Tsetse Fly, Mouth Parts of the ... 



Vatican Observatory Illustrations 

 of the 



55 



5G 

 116 



