245 
Bigelovia Douglasii, 191. 
Bigelovia graveolens, 191, 219. 
Bigelovia graveolens, var. albicaulis, 81. 
Birch, 78, 92. 
Blackberries, 131. 
Black walnut, 79. 
Borraginaceae, 194. 
Bouteloua oligostachya, 13. 
Branches, decorticated, 79. 
Bromus mollis, 162. 
Broom corn, 197. 
Brunella vulgaris, 69. 
Bryophila raptricula, 173. 
Buchloe dactyloides, 11,12, 94. 
Butterfly, 173. 
Cabbage, 199. 
Calamintha clinopodium, 145. 
Callirrhoe involucrata, 161. 
Caltha palustris, 162. 
Calystegia sepium, 152. 
Campanula patula, 162. 
Canada thistle, 79. 
Caprifoliaceae, 194. 
Carduacem, 172. 
Carex, dead leaves of, 65. 
Carex Douglasii, 30, 82. 
Carex filifolia, 30, 82. 
Carex Jamesii, var. Nebraskensis, 82. 
Carex intumescens, 11. 
Carex marcida, 82. 
Carex (Pennsylvania?), 156. 
Carex Pennsylvania, 82. 
Carex stenophylla, 30. 
Carex stricta, 11. 
Carex utriculata, 82. 
Carices, 66. 
Carlina vulgaris, 162. 
Cary a alba, 149. 
Carya araara, 94,161. 
Caterpillar of Arctia, 171. 
Caterpillar of Agrotis segetum, 170. 
Caterpillar of the sugar beet, 170. 
Cecidomya destructor, 171. 
Cedar stump, 28. 
Celtis, 86,177. 
Celtis occidentals, 85, 95,134,177. 
Cephalanthus, 149. 
Cerastium arvense, 80. 
Cercisu, 19. 
Chenopodium album, 8. 
Cherry, 176. 
Chestnut trees, 25,106. 
Chickweed, 79. 
Chrysalides, dead, 173. 
Chrysopsis villosa, 80, 83,191, 209. 
Circaea lutetiana, 162. 
Cirsium arvense, 162. 
Cirsium laneeolatum, 162. 
Citron, 202. 
Cladonia cariosa, 149. 
Clematis Dougalsii, 80. 
Clematis Jackmanii, 155. 
Clematis ligusticifolia, 82, 83, 84. 
Clematis Virginiana, 155. 
Cleome integrifolia, 70, 82. 
Cleonus punctivontris, 172,174. 
14931—No. 4-5 
Cnicus altissitnum, 150. 
Cnicus undulatus, 81, 83, 81,191, 209. 
Comandra pallida, 80. 
Comandra umbellata, 161. 
Composite, 7,167,169,191,194, 217. 
Comptonia asplenifolia, 156. 
Oonvolvulaceae, 167,168. 
Cornaceae, 194. 
Cornus mas, 131. 
Cornus sericea, 148. 
Cornus stolonifera, 81,193. 
Corydalis aurea, var. occidentalis, 94. 
Cowberry, 39. 
Crataegus, 79. 
Crataegus gran diflora, 162. 
Crataegus oxyacantha, 162. 
Crepis actorum, 162. 
Cressa cretica, 162. 
Cruciferae, 9. 
Cucumber, 201. 
Cucumis sativa, 216. 
Cucurbitaceae, 155, 201. 
Cucurbita perennis, 94. 
Cupuliferae, 194. 
Cyclamen leaves, 225. 
Cymopteris bipinnatus, 83. 
Cyperaceae, 218. 
Daloa laxiflora, 14. 
Damsons, 222. 
Deciduous trees, wood of, 90. 
Degraphis arundinacea, 162. 
Desmanthus brachylobus, 94. 
Desmodium, 146. 
Deutzia (cult.), 146. 
Dianthera Americana, 161. 
Dicentra Cucullaria, 94. 
Diptera, 172. 
Distichlis maritima, 81. 
Docks, 199. 
Dolichos sinensis, 71. 
Echinospermum floribundum, 83. 
Echinospermum Redowskii, 82, 83, 190, 191. 
Elaeagnaceae, 194. 
Elaphomyces, 172. 
Elymus, 30. 
Elymus condensatus, 31, 81, 83. 
Empetrum nigrum, 162. 
Epilobium coloratura, 80. 209. 
Erigeron armeriaefolius, 191. 
Erigeron Canadense, 191, 209. 
Erigeron corymbosus, 191. 
Erigeron divaricatus, 191. 
Erigeron glabellus, 191. 
Erigeron macranthus, 190, 209. 
Erigeron strigosus, 191. 
Eriogonum umbellatum, 83. 
Erysiphe cichoracearum, 84. 
Erythronium denscanis, 162. 
Euchlaena luxurians, 95. 
Euonymus atropurpureus, 147. 
Eupatorium, 7. 
Eupatorium ageratoides, 71. 
Eupatorium album, 71. 
Eupatorium perfoliatum, 71. 
Euphorbia corollat a, 76. 
Euphorbia esula, 162. 
