Image Rare Books Chronology of chemistry in the Lehigh Valley. Chronology of chemistry in the Lehigh Valley / R.D. Billinger, [typescript], 1969. 501 leaves ; 28 cm. View Item
Image Rare Books Memoria y Planos de un Anteproyecto para la Terminacion del Canal de Panama A brief account of the steps necessary for the completion of the Panama Canal by a Spanish engineer, Gabriel Moreno Campo, following the failed attempt by Ferdinand de Lesseps and the original Panama Canal Company to build a sea level canal. 19th century manuscript, in Spanish. 11 pages of text, two blueprints, and a lithograph. 21.5 x 15.5 cm. View Item