This report describes the findings of a study conducted on the watersheds of "Lake Lewisville, Lake Ray Roberts, Lake Grapevine and the Elm Fork of the Trinity River between Lake Lewisville and Frazier Dam," which are all part of the upper Trinity drainage basin (p. 31). The study examines the potential benefit of "remote sensing and geographic information systems (GIS) for watershed management" in and around Dallas, Texas (p. i).

This report describes the findings of a study conducted on the Eastern Watersheds of Lake Lavon, Lake Ray Hubbard, Lake Tawakoni, Lake Palestine and Lake Fork, which are located within the Blackland Prairie, Post Oak Savannah and Pineywoods provinces. These watersheds are among nine that provide drinking water to Dallas, Texas. The study examines the potential benefit of "remote sensing and geographic information systems (GIS) for watershed management" in these five watersheds (p. iii).

In this pamphlet, the author will examine some of the benefits of chemicals to mankind. The author also will examine some of the problems chemicals have caused, are causing and may cause in the future.

Article on cyanase-mediated utilization of cyanate in Pseudomonas fluorescens NCIB 11764.

Article on the plasmids of Azotobacter vinelandii.

Article on the growth of Azotobacter vinelandii on soil nutrients.

Article on the survival of Azotobacter spp. in dry soils.

Article on the biosynthesis of isoflavonoid phytoalexins and the incorporation of sodium [1,2-(13)C2] acetate into phaseollin and kievitone.

Article on dose responses for Colletotrichum lindemuthianum elicitor-mediated enzyme induction in French bean cell suspension cultures.

This article discusses the specificity of plant defences.

Article on the modulation of L-phenylalanine ammonia-lyase by pathway intermediates in cell suspension cultures of dwarf French bean (Phaseolus vulgaris L.).

Article evaluating the selectivity of compounds originally identified as inhibitors of poly(ADP-ribose) polymerase on members of the three classes of enzymes. The results suggest that micromolar levels of the benzamides in the culture medium should allow selective inhibition of poly(ADP-ribose) metabolism in intact cells. Furthermore, comparative quantitative inhibition studies should prove useful for assigning the biological effects of these inhibitors as an effect on either poly(ADP-ribose) or mono(ADP-ribose) metabolism.