CONTENTS. 



Bacillus I iibrreitlosi* :n sputum. 247 



Beech at Esher. AbnonnaL 95 



Blickbird's Baby First Week in Life, 

 241 



Blade of Leaf, Transseetion across, 331 



Bloemfontein, Diagram Snowing Geo- 

 logical Strata, 105 ; District Map of, 104 



Boyle's Law Apparatus, 50 



Callidrgas pgrene, 173 



Caloeglindrus. 80 



Camera, 5 by 4, "Bullaru," 349 ; Batcher's 

 " Mi%. 277: - Frena." 350 ; Kodak, 

 - I llet, 277; Kodak, Folding 

 Pockety 277; "if and G" special ~B." 

 379: Panoram Kodak, !No. 1. 310; 

 " Sales," 349 ; the - Telia," 349 



Camera with Conic Bellows, closed and 

 open, 253 ; with Square Bellows. : " J 



Cardita planicosta, 99 



Centipede, Web o£ 36 



Cephalosiphon limiiias, 197 



f'ochleophorus spimpes (Female, Genital 

 area of), 19; C. spinipes (Male, Tentral 

 surface of), 19; C. ternalis (Female, 

 Genital area of), 19 ; ft ternalis (Female, 

 Tentral surface of), 19; C. ternalis 

 (Ventral surface of Male), 19 



Chilosia illmtrata, 273 



Colias aurora (Male and Female), 299; 



yrina (Female and Ma: 



ft aurorina, Tar. libanolica, 261; ft 



dita, 262 ; C eogene, C". eogene Tar., C. 



romanoci, 337 ; ft wisioitL Female, 237 



Colurus deflexus, 197 



Cornicularia unicornis (Male), and Palpus 

 viewed from beneath, 304 



Corgne taginata, 185 



Cosmarium ral^ii. B( 



Cover-glass Gauge, 60 



„ movable, 152 

 stal Palace, A, 341 



Curvipes aduneopal, 



Cwni-glas-bach, Moraine heap at the foot 

 of, 162 ; Valley of, 161 



I)ele*seria in winter, 316 



Dendritic Spots in Paper. 259 



Diatoms, 284, . 



Diglena catelina, 197 



IHstglajlexilis, 197 



Double Star Observation with the Sonth- 



East Equatorial, 179 

 Ifgtisci, British, 325 

 Dgtiscus marginalis. 289: D. maroinalis. 



Hind leg of, 246 



Enslin, Section of Plane, 33 



Euasfrum terrueosum, 80 ; E. didelta, 80 ; 



E. eunealum, 80 

 Eglais disereta, Dorsal surface, 203 ; E. 

 eta, Eve-plate. 203: E. soa 



plate, 203 



Fat-cells, 255 ; from rabbit, 254 ; crvstals 



." 

 Floscularia campanula/a, F. cornula, 

 (Female), F. cornula (Male), F. ornata, 

 ,ata, cilia retracting, 197 

 Furcularia gibba, F. longisela, 197 



Gannets and Young. 53 



Genealogical Tree, 211 



Glacial Debris, Barmouth, 7 



Gnat, Breathing and Swimming Organs of 

 Larva, 344 : Emergence of, 345 ; Head 

 parts of, 345 : Larva of. 345 ; Pnpa of, 345 



/tareegilla mirahilis, 315 

 Helicigona lapicida. Love-dart of, 181 

 Helix aspersa, Annulus of Dart from, 181 

 „ Courting of a Sinistral and 

 Dextral Specimen of, 181 

 _ hortensis. Love Dan of, 1-1 

 Holy Well, Mecca, Tin Bottle of Water 

 froii_ 



rings near Barmouth Church, 43 

 Insect Hairs and Scales, Development of, 



Insect Larva, Snare of, 131 

 Isthmia nervosa, 285 



Jupiter (2 figs.), 251 : October 17th, 1880, 

 and April 15th, and May, 6th, 1899, 281 



Kammatograph, Closed, 270 : Beady for 

 Operation, 270 ; Section of Subject Plate, 

 270 ; with Lantern, 271 



Lachnus formicophil S-X 257 



Lamellae of Antennae of Cockchafer. 245 ; 

 Cavities on, Seen Vertically, 246 ; Cavi- 

 ties in, seen Sideways, 

 Lawes, Sir John Bennet, Bart., FJ&.S., 129 

 Lepidocnrtus curmeoTlit, Test Scale of, 153 

 LepUma mccharina, Scale of, 153 

 Leucophasia amurensis. 172 

 Lianas. 373, 374 

 limnias ceratophyUi, 197 

 Limnochares holoserieea (Dorsal Plate and 

 35; L. holoserieea (Dorsal Sur- 

 face ), 85 ; L. holoserieea (Month Organs 

 and Palpi), 85 ; L. holoserieea (Female, 

 Ventral Surface of), 85 



Machilis polgpoda. Scale of, 153 



Mars, February 12 and 21, 1901, 346 



Mastigiocerca carinalia, 197 



Afelieerta ringens, 197 



Metopidia sol id us (Dorsal View and Side 

 View t, 197 



Mezozoic Bocks, Antrim Section, 201 



Micrasterias osdtans, 80 ; M.jenneri, 80 



Microscope, Bacteriological, 28: Bakers 



Plantation, 89; Baker's Plantation in 



se, 88; Baker's B.M.S., 89 ; Bausch and 



Lomb "B.B.," 343: Xew ^London," 



Boss's Standard, 283 ; Swift's 



Portable, 118 



If idea elliptica (Dorsal Surface of Female), 

 S5 : Xf. elliptica (Genital Area of Female), 

 86 ; M. elliptica (Ventral Surface of 

 Female), 86 ; M. elliptica (Third Leg of 

 Male, Three Last Segments of), 86 



Moon, the Fun, 307 



Moraine Heap at the Foot of Cwm-glas, 162 



Movable Cover-glass, 152 



Mushroom, Abnormal, 167 



rs Kop, 103 

 ^Newfc, AbnonnaL 351 

 :Nova Persei, Position, 321 : Spectrum, 323 



Obelia geniculata. Portions of Frond, 185 

 Odonthalia dentata with Tetraspr-r - 

 Oecistes serpentimis, 0. stggis. 197 

 Oil Condenser. 1-4 

 Ovipositor of Wild Bee, 151 

 Oxgplila, Characteristics of, 47 



Paardeburg Country. Section of, 35 



Palpal Organs of Pedanosthelus licidus, 166 



„ Pholeommagibbum,16<a 



Steatoda bipunctata, 166 



„ Theridion lineatum, 166 



Parasite from Humble Bee. 183: Jaws 



■:. It 

 Penium digitus, with one jlieraslerias 



crenalt . 

 Philodromus, Characteristics of, 16 

 Pholeus phalanaioides. Palpus and Tulva 



of, 139 

 Photographic Changing Bos. 378 

 Photographic Colonr Prints, 108. 109, 111 

 Photographic Exposure Becord and Diarv 



for 1901, 309 

 Photographic Wave Studj. 1 . " 

 Photography of Colour, 163 



i>anthi,39 ; P. deota. Female, 72 : 

 P. hippo, 11 ; P. kreitneri, 39 ; P. mesen- 

 tina Female. . 



ARTICLES, NOTES, ETC. 



Fiona latipes. Male, Fourth leg of, 49 : 

 P. ornaia. Female, Genital area of, 48 ; 

 P. ornata. Male, Epimera of, 48 : 

 P. ornata. Male, Fourth leg of, 48 ; 

 P. ornata. Peg on palpi, 48 



Pionopsis lutes a . - = 



Polgarthra platiptera, 197 



Polgommatus argus. Scales of, 153 



Polyp of Alcgonium, 215 



Polvsiphonia atro-rubescens. F. hrodiaei, 

 P. nigrescent, 315 



Pseudo-Scorpion. Spinning-ducts and Comb 

 of, 228 



Pterodina patina, 197 



Quarry below 2s ew Fort Kop, 103 

 Quarry on West of Spur, 103 



Rhodomela subfmca, with Tetraspores, 314 



Boot-hair, 329 



Botifers, A Group of, 197 



Rotifer tardus, R. vulgaris, 197 



Sacignia frontata. Male and Palpus 



viewed from beneath, 303 

 Scales, Markings on Various, 152 

 Sbeeptick, 119 ; Jfomenclatnreof J 



; : -. Z -r - . ' 



Shells, Typical Becent, 97 



Short-eared OwL Hest of, 117 



Spectrum of Jupiter, 318 



Spectrum Sensitiveness of a Dryplate, 65, 67 



Sphaerophoria scripta (male t. 273 



Spiders. Cephalothoraces of Male, 266 

 .. in Profile, 266, 334. 359 

 „ Radial Joints of Male Palpi, 334 

 parts of Male Palpi, 359 



Stage, MechanicaL for Diagnostic Micro- 

 scope, 151 



Stalked larva of Aniedon. 216 

 :-ew. Position of, 32L 375 



Stearic Acid Apparatus, 355 



Stem, Touna, Transseetion across, 329 



Stephanoceros eichornii, 197 



Stephanops lamellaris, 197 



Stint, 2sest of, 368 



Stoma, Section across a, 331 



Stone Curtain atBoxby (lateral view), 194 : 

 (showing gutter), lj>3 



Strata, Various, 201 



Tegenaria atrica, radial apophysis; T. 

 alrica, vulva of : T. domestica, denticula- 

 tion of falces of ; T. domestica, palpus 

 of; T. domestica, vulva of ; T. j~. 

 palpus of ; T. parietina, denticulation of 

 falces of; T. parietina, palpus of; T. 

 parietina, vulva of, 139 



Terracolus fausfa, 172 



Theridion bimaeulatum. Palpus of, 207; 1 . 

 lineatum (Female, Various parts_», 235 : 

 T. lineatum (Male, Various par:- , 235 

 T. pallens, Palpus of, 207 : T. pictum. 

 Palpus of, 207 : T. sisgphium, Palpus of, 207 



Tftvas. Genital Plates and Ventral Surface, 

 133 



Tipnla, Batfeledorelike Object in Ovi- 

 positor, 120 



Transpiration, Mechanics of, Diagram to 

 illustrate. 331 



Turntable, 90 



Valtaia eristafa, ~Egg Capsules of, 181 

 Venlricnlites, Imagined Beconstruction, 149 

 Venus, Phases of, 27 



Water-ouzeL Haunt of, 1 



2>est and Toung of, 3 

 WeevU, Eyes and Snout of Commoi . 1 1 

 Gizzard and Antennae of. 12' 



Xanlhidium, 80 



Xvleni and Phloem. Separate Elements of, 



"331 

 Xystieus, Characteristics of. 16 

 Xysticuscristatus (natural siz 



Zegris fausli, 171 



Abnormal CTover Flowers, 191 ; Cowslip Aculeate Hvmenoptera of Suffolk. 22 American CoaL Value of, i - 



Flower. 23 : .-. _ , IS Lime- Adders and Bing-snakes. Belative Fre- Animal Fat, The Xature of. 353 



tree Foliage, 96 : Mushroom, 16/ ; Xewt. queu . . - . 212 Anodonta c»gnea. 279 



219 ; Sparrow, 219 Agriculture. Board of. Scientific Assistance Antarctic Expedition, British, 55 



Acetylene Flame, 239 to, 239 Scottish, 150 



