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The article discusses the acetylene reduction in relaxation to levels of phosphate and fixed nitrogen in Green Bay. This paper reports data collected during the summer of 1971 in the southern part of Green Bay of Lake Michigan. This study undertook to characterize acetylene reduction and nutrient levels throughout the summer. Water samples were collected. Phytoplankton characteristically increase rapidly in the spring. A high soluble phosphate concentration in the water preceded all major increases in the population of heterocystous, nitrogen-fixing blue-green algae.

The purpose of this paper is the analysis of the interactional patterns of Wisconsin farm couples with their parents. Step-wise multiple regression analysis provides a technique to solve a sequence of one or more multiple linear models by step-wise application of the least sum-of-squares method. The predictor variables used in this analysis include: distance, husband's age, stage in the family life-cycle, husband's education, wife's education, gross farm income, agricultural training of the husband, productive-man-work-units, and level of living. The results showed that distance is an important factor in the interaction between generations in rural areas. [ABSTRACT FROM AUTHOR]