This volume is a brief anthology of the most influential writing by American scientists between 1800 and 1900. Arranged thematically and chronologically to highlight the progression of American science throughout the nineteenth century - from its beginnings in self-taught classification and exploration to the movement towards university education and specialization - it is the first collection of its kind. Each section begins with a biography, putting human faces to each time period, and introducing such notable figures as Thomas Jefferson and Louis Agassiz.