Report of an investigation of the grasses of the arid districts of Kansas, Nebraska, and Colorado Q Science
Famous problems of elementary geometry: the duplication of the cube; the trisection of an angle; the quadrature of the circle; an authorized translation of F. Klein’s Vorträge über ausgewählte fragen der elementargeometrie, ausgearbeitet von F. Tägert Q Science
A study in the design of an arithmetic element for serial processing in a linear iterative structure Q Science
