21. Informe sobre la teoria del astronomo aleman Rodolfo Falb acerca de los temblores y erupciones volcanicas: presentado á la Facultad de Ciencias de la Universidad Mayor de San Marcos de Lima por una comision de su seno Author(s): Dulanto, Martin, authorBarranca, José Sebastián, 1830-1909, author Publication: Lima : Imp. de "El Nacional", 1869 Subject(s): Volcanic EruptionsEarthquakesAstronomical Phenomena
22. Remarks on the early appearance of the northern lights in New England Author(s): Green, Samuel A. (Samuel Abbott), 1830-1918 author Publication: Cambridge : John Wilson and Son, 1885 Subject(s): Astronomical PhenomenaLightAtmosphereNew England