http://hdl.handle.net/1811/21929 2013-05-22T17:33:03Z http://hdl.handle.net/1811/21996 Back Matter 1973-07-01T00:00:00Z http://hdl.handle.net/1811/21995 Necrology 1973-07-01T00:00:00Z http://hdl.handle.net/1811/21994 The Ohio Academy of Science Officers, Committees, and Academy Representatives for 1973-74 1973-07-01T00:00:00Z http://hdl.handle.net/1811/21993 Constitution of the Ohio Academy of Science 1973-07-01T00:00:00Z http://hdl.handle.net/1811/21992 An Early Litter for the Opossum (Didelphis Marsupialis) in Ohio Grote, John C.; Dalby, Peter L. A female opossum, Didelphis marsupialis, was found dead on the road in Columbus, Franklin County, Ohio, on 25 February 1973, with nine young tightly attached to her teats. The size of the young suggests that they were conceived the first week of January and that the female was reproductively active during the last part of December. Early breeding at this latitude (lat. 40° N) is very unusual and is compared with known breeding dates from other areas of temperate North America. Author Institution: Department of Zoology, The Ohio State University 1973-07-01T00:00:00Z Grote, John C. Dalby, Peter L. http://hdl.handle.net/1811/21991 A New Species of Psammotettix (Homoptera: Cicadellidae) from Mexico DeLong, Dwight M. Psammotettix mexcala n. sp., the first known Mexican species of the genus, is described. Author Institution: Department of Entomology, The Ohio State University 1973-07-01T00:00:00Z DeLong, Dwight M. http://hdl.handle.net/1811/21990 Ohio Ascomycete Notes I. On Eleutherascus Lectardii (Nicot) Von Arx Huang, L. H.; Schmitt, J. A. Eleutherascus lectardii (Nicot) von Arx, isolated from soils of Clark County and Franklin County in Ohio, is apparently reported for the first time in the United States. It is characterized by spiny, brown ascospores and by elliptical or ovoid asci. The asci are without a peridium and are mostly eight-spored. Author Institution: Department of Botany, The Ohio State University 1973-07-01T00:00:00Z Huang, L. H. Schmitt, J. A. http://hdl.handle.net/1811/21989 Notes on the Algal Flora of Illinois, III. Additons to the Chlorophyceae Dillard, Gary E.; Tindall, Donald R. This paper lists several species of chlorophycean algae previously unreported or infrequently reported as occurring in Illinois. A total of 125 species and varieties arc enumerated, of which 27 are new records for the State. Included are first records for species of the genera Dunaliella, Chlorogonium, Platymonas, Pteromonas, Dysmorphococcus, Asterococcus, Stylosphaeridium, Elakatothrix, Geminella, Pseudendoclonium, Westella, Planktosphaeria, Eremosphaera, and Spirotaenia. Author Institution: Biology Department, Western Kentucky University and Botany Department, Southern Illinois University 1973-07-01T00:00:00Z Dillard, Gary E. Tindall, Donald R. http://hdl.handle.net/1811/21988 Neutron Activation Analysis of Aluminum in Postmortem Human Lung Tissue Mantis, J. Kelly; Norris, G. R. Neutron activation analysis was used to assay trace quantities of aluminum in postmortem human lung tissue samples. Dried accurately weighed lung tissue samples were activated in a 3.3 x 1()13 neutrons/cm2/sec thermal neutron flux and analyzed using a lithiumdrifted germanium detector and 4096 channel gamma spectrophotometer. The 1778 kcv gamma photon emitted by Al28 was quantified using the comparator technique with highly purified aluminum cyclohexane butyrate as the Al standard. The aluminum content of human lung tissue was shown not to be related to occupational exposure to industrial fiberglass. Residents of Akron, Ohio, were shown to have significantly higher concentrations of aluminum in their lungs than do residents of Newark, Ohio. A set of normal concentrations for aluminum in postmortem human lung tissue was developed, based on neutron activation analysis. The relative simplicity, accuracy, and precision of this technique suggest its use in further studies of this type. Author Institution: Department of Biology, Denison University 1973-07-01T00:00:00Z Mantis, J. Kelly Norris, G. R. http://hdl.handle.net/1811/21987 Effects of Light and Aging on Ribonucleotide Composition in Avena Sativa Lee, Mu-Lien M.; Cline, Morris G. This investigation was carried out to study the effects of light on the ribonucleotidebase composition of coleoptiles and primary leaves of oat seedlings (Avena sativa L., var. victory). The effects of aging on the base composition of primary leaves were also studied. The nucleotides obtained by alkaline hydrolysis of ribonucleic acid were separated by eluting a Dowex-1-X8 column with formic acid and ammonium formate. Author Institution: Department of Botany, The Ohio State University 1973-07-01T00:00:00Z Lee, Mu-Lien M. Cline, Morris G. http://hdl.handle.net/1811/21986 The Genus Atrichopogon (Diptera, Ceratopogonidae) in Ohio and Neighboring States Boesel, M. W. Nine species of A trichopogon occur in Ohio and immediately adjacent states: A. minutus, known from the Palearctic and Nearctic regions generally; A. websteri, occurring widely in the eastern and southern states; A. levis, previously reported from Ohio and easily the most common ceratopogonid in the state; A. fusculus and A. titanus n. sp., both large and widespread but scarce; A. peregrinus and A. fusinervis, found in limited numbers; A. geminus n. sp., fairly common; A. falcatus n. sp., known from only 1 locality in Michigan. A. websteri and A. levis, not previously recorded from Canada, occur on Pelee Island, Ontario, as does also A. geminus n. sp. Author Institution: Zoology Department, Miami University 1973-07-01T00:00:00Z Boesel, M. W. http://hdl.handle.net/1811/21985 The Junior Academy - Past, Present, and Future Acker, Gerald Author Institution: Department of Biology, Bowling Green State University 1973-07-01T00:00:00Z Acker, Gerald http://hdl.handle.net/1811/21984 David Knowlton Webb, Jr. 1928-1973 1973-07-01T00:00:00Z http://hdl.handle.net/1811/21983 Front Matter 1973-07-01T00:00:00Z