Included in this bibliography are annotations of quantitative data on the content or concentration of nitrogen and phosphorus in plants and animals, the contribution to water of these elements from various sources (soil, fertilizers, excretion, sewage, precipitation, urban run-off), and the effect their presence has on aquatic standing crops and…

The need for research pertaining to the best use of water and recreation resources in Texas is emphasized in these four papers presented at the 1968 Experiment Station Conference, College Station, Texas. "Parameters of Water Resources in Texas" identifies and elaborates upon the important elements presently constituting the water…

A standard operating procedure (SOP) is presented for calculating the date of freeze-up on the St. Lawrence River at Massena, N.Y. The SOP is based on two empirical temperature decline equations developed for Kingston, Ontario, and Massena, N.Y., respectively. Input data needed to forecast freeze-up consist of the forecast December flow rate and…

Discusses the puzzling effects of shadows cast in water. Demonstrates the effects of various objects and surface curvatures on the behavior of light rays transmitted through water. (CW)

Discusses: (1) the physics of ice formation; (2) growth, melting, and regrowth of ice; (3) ice distribution; (4) ice movement; (5) the marginal ice zone; and (6) observations of ice dynamics. (JN)

Examines remote sensing of the arctic seas by discussing: (1) passive microwave sensors; (2) active microwave sensors; (3) other types of sensors; (4) the future deployment of sensors; (5) data buoys; and (6) future endeavors. (JN)

Special responsibility for chemical firms are delineated in three areas: (1) chemical processes that are toxic to man; (2) use best available technology to monitor the safety of effluents; (3) when any doubt of safety exists, the firm should halt operations at once and take preventive action. (DF)

Summarizes the nature of detergents and the effects they cause in water and sewage treatment plants. Particular reference is given to the Australian situation. (AL)

Described is the impact of a polluted aquatic environment on flora and fauna and the use of various organisms as pollution indicators. (CP)

Describes a project, being undertaken during fiscal-year 1972 by the Universities Council on Water Resources, to develop a sequel to the publication, A Ten-Year Program of Federal Water Resources Research." The new publication will help guide research efforts of the Federal agencies. (PR)