An Evaluation of Geographic Variation Within an Isolated Population of Big-Eared Bats (Corynnorhinus townsendii) in Oklahoma, Kansas and Texas

1-7

Vascular Flora of Love Valley Wildlife Management Area, Love County, Oklahoma

9-18

Vegetation Patterns in Carter County, Oklahoma, 1871

19-26

Prothonotary Warbler Nest Success and Vegetation Characteristics in a Fragmented Oklahoma Landscape

27-31

Comparing Explanatory Variables in the Analysis of Species Composition of a Tallgrass Prairie

33-40

Characterization of Rhizoctonia solani Isolates Associated with Patch Diseases on Turfgrass

41-51

Author Productivity and Citation Frequency in the Proceedings of the Oklahoma Academy of Science, 1921-2000

53-66

Development of a Flow Visualization Apparatus for Fluid in a Rotating Cylinder

67-72

Significant New Distribution Records for the Centipede, Theatopsis posticus (Say) (Chilopoda: Scolopendromorpha: Cryptopidae), from Oklahoma, With Four New Records From Ark-La-Tex

73-74

Density and Habitat Associations of Great Horned Owls in North-Central Oklahoma

75-77

Occurrence of the Rock Pocketbook Mussel, Arcidens confragosus(Bivalva: Uniondae), in the Poteau and Deep Fork Rivers of Oklahoma

79-80

ABSTRACT of paper presented at the 2003 Technical Meeting

81-89

ABSTRACTS of papers presented at the 2004 Technical Meeting

81-89

Density and Habitat Associations of Great Horned Owls in North-Central Oklahoma

Officers and Section Chairs — 2004

105

Financial Statements — 2003

106-109

THE JIMMIE PIGG MEMORIAL AWARD FOR OUTSTANDING SCIENCE TEACHING

91

OAS Award of Merit — 2004

93

From the editor

94

ERRATUM

95-103