CON TEN FS 
ARTICLE 1—THE MAYFLIES, OR EPHEMEROPTERA, OF ILLI- 
NOIS. By B2D: Burks. May, 1953. 216 pp., frontis., 395 figs......... 1-216 
Importance of mayflies 1, Habitat preference 4, Life history 6, Food habits 9, Emer- 
gence peaks 9, Dispersal 9, Rearing mayflies 10, Collecting and preserving 12, Study 
preparations 13, Literature 14, The Walsh species 14, External morphology 17, Iden- 
tification of sexes 20, Classification 20, Key to families 26, Ephemeridae 27, Neo- 
ephemeridae 42, Caenidae 43, Ephemerellidae 55, Baetiscidae 75, Oligoneuridae 79, 
Leptophlebiidae 81, Baetidae 97, Ametropidae 144, Heptageniidae 151, Literature 
cited 203, Index 211. 
ARTICLE 2.—_LARGEMOUTH BASS IN RIDGE LAKE, COLES 
COUNTY, ILLINOIS. By Grorce W. Bennett. November, 1954. 
DL SRG aaa a ie UCI CS Re ae tee Ra ae Ce Solu 217-76 
Acknowledgments 219, Characteristics of Ridge Lake 219, Limnological character- 
istics 220, The creel census 229, The draining census 231, Population dynamics 236, 
Bass spawn inventory 245, Spawning success and population density 247, Growth of 
bass 251, Growth of bluegills 256, Catch rate versus fishing pressure 256, Factors af- 
fecting yields of bass 261, Unaccountable mortality and length of life 262, Exploita- 
tion rates 266, Efficiency of baits 267, Cost of fishing 269, Discussion 269, Summary 
273, Literature cited 276. 
ARTICLE 3—NATURAL AVAILABILITY OF OAK WILT INOC- 
DEA. by &. A. Cur. June, 1955.-48 pp., frontis., 22 figs... ..... 277-324 
Acknowledgments 278, Review of literature 278, Field methods 280, Laboratory stud- 
ies 285, Field observations 297, Inocula in nature 311, Discussion 317, Summary 319, 
Literature cited 321. 
ARTICLE 4.—EFFICIENCY AND SELECTIVITY OF COMMER- 
CIAL FISHING DEVICES USED ON THE MISSISSIPPI RIVER. 
By WILLIAM C. STARRETT and PAauL G. BarnickoL. July, 1955. 42 
[Lie Pe G0) ris Cela” SY ae 1 a cea ee RO ane Age 325-66 
Materials and methods 325, Characteristics of area 327, Commercial fishing activities 
327, Terminology for commercial fishing devices 329, Angling devices 330, Encom- 
passment devices 331, Entrapment devices 333, Entanglement device 353, Discussion 
364, Summary 364, Literature cited 365. 
ARTICLE 5.—HILL PRAIRIES OF ILLINOIS. By Roserr A. Evers. 
EMeesty UO soe (Sth Pps, TOMES Do MOSs se Pal ke saeco ke 367-446 
Acknowledgments 368, Environment 370, Vegetation of hill prairies 375, Vegeta- 
tional history and succession 393, Annotated list of hill prairies 395, Flora of the 
hill prairies 413, Summary 441, Literature cited 444. 
ARTICLE 6.—FUSARIUM DISEASE OF GLADIOLUS: ITS CAUSAL 
AGENT. By Junrus L. Forserc. September, 1955. 58 pp., frontis., 
BUMMER et cinr, Meena acts x. feo svelte ha 6 Paneeiae ik ees. ane a ues ss 447-504 
Acknowledgments 447, History of the disease 447, Names of the disease 448, Symp- 
tomatology 449, Etiology 451, Purpose of present investigation 454, Methods 454, 
Physiological studies 455, Variations in culture types and pathogenicity 469, Morphol- 
ogy 479, Pathogenicity tests 481, Discussion and conclusions +96, Summary 500, Lit- 
erature cited 501. 
