"Natural History of the Brush Mouse (Peromyscus boylii) in Kansas With Description of a New Subspecies" by Charles A. Long is a scientific publication written in the early 1960s. This work explores the geographic distribution, ecological habits, and the unique characteristics of the brush mouse in Kansas, specifically detailing the identification of a new subspecies that has not been previously recognized. The book presents comprehensive research based on field studies conducted in various localities across Kansas, focusing on capturing and observing the brush mouse in its natural habitat. Long discusses the ecological adaptations of the brush mouse, including its diet predominantly consisting of acorns, and its climbing abilities suited for cliff-dwelling life. Data collected also provide insights into the demographics of the population, behaviors, and interactions with other rodent species, highlighting the significance of habitat in the distribution of brush mice in Kansas. (This is an automatically generated summary.)