"The National Geographic Magazine, Vol. II., No. 2, May, 1890" is a scientific publication produced by various authors and published in the late 19th century. This issue includes a variety of geographical studies and reports, such as analyses of river systems and a critical review of a historical expedition. The publication aims to provide insights into geographical phenomena, scientific methods of exploration, and contributions to the understanding of the natural world. The opening of this volume features a detailed exploration of the rivers in Northern New Jersey, authored by William Morris Davis. It begins with a classification of river types based on their origin and topographical relations, illustrating the complexities of river systems. Davis describes various categories of rivers, including consequent, antecedent, and superimposed rivers, providing insights into their formation and evolution in relation to geographical and geological changes in the region. The text lays a foundation for a deeper understanding of the area's hydrology before proceeding to assess the unique characteristics and histories of specific rivers, setting up a comprehensive discussion that combines historical insight with scientific analysis. (This is an automatically generated summary.)