INDEX TO VOLUMES XIII, XIV, AND XV. 
Acarina of Cedar Point, 131. 
Amaranthus Retroflexus, Peculiar 
Varieties, 469. 
Amaryllidaceae, Ohio, 327. 
America, Diptera of Middle, 333. 
Anax longipes, 219. 
Apocynaceae, Ohio, 79. 
Aquatic Resources of Ohio, 133. 
Atypus milberti, 251. 
Bacteria, soil, 273. 
Beans and Peas, Key to the Seeds, 
500. 
Beans and Peas of Ohio, 393. 
Biological Club, Meeting 24, 100, 
132, 147, 188, 217, 279, 331, 355, 
376. 436, 452, 471, 523. 
Birch, Starch Reserve in, 317. 
Britton and Brown’s Illustrated 
Flora, 203. 
Bryophyta, synopsis, 211. 
Buried Stream Channel, S. E. Ohio, 
519. 
Calamophyta, synopsis, 202. 
Calandra oryzae, 321. 
Caloplace pyracea, 99. 
Caprifoliaceae, Ohio, 299. 
Carnivorous Plants of Ohio, 97. 
Caryophyllaceae of Ohio, 176. 
Cecidia from Connecticut, 289. 
Cedar Point, Additions to Flora, 78. 
Coleoptera, 525. 
Fungi, 25. 
Insect Galls, 377. 
List of the Acarina, 131. 
Cell Division in Euglena, 449. 
Cheese Skipper, 309. 
Chromosome Mechanism, 509. 
Segregation, 513. 
Cincinnati, Group, Upper Richmond, 
229. 
Classification of Plants VIII, 70; 
IX, 101; X, 198; XI, 211. 
Clovers of Ohio, 443. 
Cocklebur, Sprouting, 216. 
Coleoptera, Fish-feeding, 525. 
Commelinaceae of Ohio, 124. 
Conifers, Ray Pits, 542. 
Connecticut Cecidia, 289. 
Curl on Raspberry, 281. 
Cuyahoga County Plants, Additions, 
64. 
Cycadophyta, Synopsis of, 105. 
Cytological Life Cycle, 142. 
Cytological Study of Smilax Her- 
bacea, 357. 
Didea fasciata, 90. 
Dioscoreaceae, Ohio, 327. 
Diptera of Middle America, 333. 
Distribution of Plants, Ohio, 409. 
Dogbanes of Ohio, 79. 
Ecological Varieties of Salix Interior 
255. 
Eelworm, 551. 
Egg Laying of .Rice Weevil, 321. 
Entomological Work in Ohio, 453. 
Equisetum, from Kansas, 19. 
Equisetum kansanum, Schaffner, 21. 
Eriocaulaceae of Ohio, 130. 
Eristalis aeneas, 84. 
Erosion along Paint Creek, 252. 
Evening-primrose Family in Ohio, 
463. 
Euglena oxyurus, Cell Division, 449. 
Field Manual of Trees, 272. 
Fish-feeding Coleoptera, 525. 
Flora of Cedar Point, Additions, 78. 
Food of Rana Pipiens, 257. 
Fraxinus in Ohio, 185. 
Frost Protection, Minimum Tem¬ 
peratures, 405. 
Fuchsia, Reduction Division, 1. 
Fungi, of Cedar Point, List, 25. 
Key to Genera, 74. 
Galls, Insect, 377. 
Geographic Distribution of Plants, 
Transpiration and Relation, to 
241. 
Guatemalan Hemiptera - Heterop- 
tera, 529. 
Gymnosperms, Classification of, 101. 
Hemiptera-Heteroptera of Ohio, 501. 
Gautemalan, New Species, 529. 
Heredity, Basis of, 509. 
Honeysuckle Family in Ohio, 299. 
Horse fly, 225. 
Induced Modifications in Pigment 
Development in Spelerpes 
Larvae, 49. 
Inheritance of Size in Tomatoes, 473. 
Insect Galls of Cedar Point, 377. 
Iridaceae, Ohio, 327. 
Iridales of Ohio, 327. 
Juncacae of Ohio, 125. 
Kansas, Undescribed Equisetum, 19. 
