Biblio
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. Anon.1906. Physical Geography. Tempe Normal School. Tempe Normal School.
. Anon.1898. Present Rotation Period of the First Satellite of Jupiter and Its Change in Form and Period Since 1892. The Astronomical Journal, no. No. 441. The Astronomical Journal.
. Anon.1898. The First Satellite of Jupiter. Abdruck aus den Astr. Nachr. Bd. 146.. Abdruck aus den Astr. Nachr. Bd. 146.
. Anon.1912. Where-When Did Masonry Originate. Arizona Daily Star. Arizona Daily Star.
. Anon.1892. Indicacinoes sobre un period lluvioso en el Sur del Peru.
. Anon.1892. La Inundacion de 1868. El Cosmos. El Cosmos.
. Anon.1897. The Lowell Observatory in Mexico. Popular Astronomy. Popular Astronomy.
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