Search Results for: Year: 1990

Stable Carbon Isotope Ratios of Miocene Sediments and Fossil Celtis (Ulmaceae) and Berriochloa (Gramineae) Reproductive Structures from the Northern Great PlainsAuthor(s): Jacob Haffnew, Mark L. Gabel and Larry L. TieszenYear: 1990 Volume: 69 Pages: 145-152

Response of Barley Plants to Drought Stress: Genotypic Variation in Leaf Area, wtare Potential and Glycinebetain AccumulationAuthor(s): Walter E. RiedellYear: 1990 Volume: 69 Pages: 61-68

Cladodont Shark Teeth from the Late Devonian-Early Mississippian Englewood Formation of the Black Hills, South DakotaAuthor(s): Mark D. FahrenbachYear: 1990 Volume: 69 Pages: 153-164

Extraction and Insecticidal Studies of Fluorescent Lipophilic Substances from Echinacea purpurea InflorescencesAuthor(s): Sharon Many Lightnings, Gerald A. Myers, Walter E. Riedell and David J. HurleyYear: 1990 Volume: 69 Pages: 69-74

Polynomials with Coefficients in General Algebraic StructuresAuthor(s): Alexander Mehaffey, Jr.Year: 1990 Volume: 69 Pages: 165-166

Electrode Determination of Extractable Sodium in South Dakota SoilsAuthor(s): E.M. WhiteYear: 1990 Volume: 69 Pages: 75-80

A Cycle of CongruencesAuthor(s): Tomi Zierke and Emil KnappYear: 1990 Volume: 69 Pages: 167-168

Drought in Western South Dakota as Revealed by Tree-RingsAuthor(s): Arthur T.De Gaetano and James R. Miller, Jr.Year: 1990 Volume: 69 Pages: 81-94

Table of ContentsAuthor(s): Year: 1990 Volume: 69 Pages: 1-4

Transmission of Trichomonas gallinae to Ring Doves (Streptopelia risoria)Author(s): Glenn E. Kietzmann, Jr.Year: 1990 Volume: 69 Pages: 95-98