INDEX 



2>^2> 



Bulrush zone, 237 

 Bur reed, Sparganum eurycarpum 

 Butter and eggs, Linaria vulgaris 

 Butter-cup, water, Ranunculus aquatilis 

 Butterflies, see Lepidoptera 

 Butterfly weed, Asclepias tuber os a 



Caboma, 103 



Cactus, Opuntia Rafinesquii 



Caddis fly: Leptoccra, 175; net- 

 building, see Hydro psyche 



Caddis worm. Goer a, 169 



Calcite, 71 



Calumet stage of Lake Chicago, 82, 83 



Canadian period, 46, 47 



Canon Diablo, 23, 24 



Cardinal flower. Lobelia cardinalis 



Carrot, wild, Daucus carota 



Cassandra zone, 198 



Cat-tail, Typha 



Cat-tail zone, 238 



Caves, 10 



Cenozoic, 30, 31 



Chalcopyrite, 72 



Champlain Sea, 88 • 



Chalk, yi 



Chara ponds, 179 



.Checkerberry, GauUheria procumbens 



Cherry, ground, Physalis 



' Cheveril, Anthricus cerefolium 



Chicago: Lake, see Lake Chicago; 

 site of, 50, 52, 57, 64, 88 



Chickweed, Stellaria aquatica 



Chirotenetes siccus May-fly, 289 



Chlorite, 71 



Cicada, see Heniiptera 



Cicely, sweet, Osmorhiza Claytoni 



Cinquefoil: beach, Poteniilla canadensis; 



shrubby, P. fruticosa; silver, P. 



Anserina 

 Clams, distribution of, 279 

 Clams (Pelecypoda) : 



— Alasmodonta marginata, 169, 170, 171 

 — Anadonta grandis, 169, 170, 171 

 — Lampsilis luteola, 169, 170, 171, 234 

 — Sphacrium simile, 184, 184 



Clay pinnacles, 10 



Clearweed, Pilea pumila 



Cleavage, 69, 170 



Climax forest, 202 



Closed gentian, Gentiana Andreu'sii 



Clover: 



— Bush, Lespedeza capitata 



— Prairie, Petaloslemwn purpiireum 



— White sweet, Melilotus alba 



Coal beds, 51 



Cocklebur, Xanthium echinalum 



Coleoptera, Beetles: 



— Alaus oculatus, eyed elater, 219 



— Balaninus, nut weevil, 223 



— Boletothcrus bifurcus, fungus beetle, 

 219, 220 



— Buprestidac, metallic wood-boring 

 beetles, 158, 219 



— Calloides nobilis, 225, 226 



— Calosonia: 



calidum, the fiery hunter, 153, 75J 

 scrutator, the searcher, 153, 755 



— Chalco phora liberta, metallic wood- 

 borer, 158, 159 



— Chalepus: 



nervosa, 223 

 rubra, 223 



— Chrysobothris femorata, flathead apple- 

 tree borer, 226 



— Cicindela: 



ancocisconenses, sphagnum tiger 



beetle, 149, 201 

 cuprascens, copper tiger beetle, 148, 



149, 153 . ^ 



formosa generosa, large tiger beetle, 



148, i49> 158 

 hirticollis, 148, 149 

 lepida, white tiger beetle, 148, 149, 



153 

 limbalis, clay blufl' tiger, 149, 260 



re panda, 149, 149 



scutellaris lecontci, bronze tiger 

 beetle, 148, 149, 158 



scxguttata, green tiger beetle, 149, 

 149 



tranquebarica, 149 

 — Cicindelidac, tiger beetles, 148, i4g 

 — Diapcris maculata, fungus beetle, 219, 



220 

 — Disonycha quinqucviltata, 154, 133 

 — Dytiscus, di\'ing beetle, 104, larva, 



'186, 188, 239 

 — Elaphidion villosum, 223 

 — Elateridae, click beetles, 219 

 — Eupsalis minuta, oak borer, 227, 228 



