de los Progresos de las Ciencias Exactas, Físicas y Naturales. Tomo 21, nª 8: Determinación de la hora con un anteojo portátil de pasos, en coincidencia aproximada con el meridiano, por Miguel Merino (y) Nivelación barométrica. (Datos de Escuelas Pías de Zaragoza, de Barbastro, de Tafalla, de Sos, y de Jaca; ademas de en Tamarite de Litera por el Dr. Joaquín Carpi).

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