Biblio
. 1933. “Tree Growth And Climatic Cycles”. The Scientific Monthly. The Scientific Monthly.
. 1899. “A Summary Of Planetary Work At The Lowell Observatory And The Conditions Under Which It Has Been Performed”. Popular Astronomy. Popular Astronomy.
. 1898. “Stellar Bands In The Zodiac From Gemini To Scorpio”. Popular Astronomy. Popular Astronomy.
. 1927. “Solar Records In Tree Growth”. Science. Science.
. 1929. “Secret Of The Southwest Solved By Talkative Tree Rings ”. National Geographic Magazine. National Geographic Magazine.
. 1898. “Scales Of Seeing”. Popular Astronomy. Popular Astronomy.
. 1925. “Radio Talks On Science”. Scientific Monthly. Scientific Monthly.
. 1900. “Photographs Of The Zodical Light”. Popular Astronomy. Popular Astronomy.
. 1903. “A New Almucantar”. Popular Astronomy. Popular Astronomy.
. 1899. “Mars.”.
. 1897. “The Lowell Observatory In Mexico”. Popular Astronomy. Popular Astronomy.
. 1885. “The Lowell Observatory And Its Work”. Popular Astronomy. Popular Astronomy.
. 1892. “Indications Of A Rainy Period In Southern Peru”. Science. Science.
. 1907. “The Illusions Of Vision And The Canals Of Mars”. Popular Science Monthly. Popular Science Monthly.
. 1894. “Gegenschein Observations”.
. 1894. “Forms Of Jupiter's Satellites”. Popular Astronomy. Popular Astronomy.
. 1899. “The Effects Of Mountains On The Quality Of The Atmosphere”. Popular Astronomy . Popular Astronomy .
. 1910. “Drawings Of A Comet”. Popular Astronomy. Popular Astronomy.
. 1921. “Dating Our Prehistoric Ruins”. Natural History. Natural History.
. 1928. “Climate And Trees”. Nature Magazine. Nature Magazine.
. 1897. “Atmosphere, Telescope And Observer”. Popular Astronomy. Popular Astronomy.
. 1897. “The Astronomer's Globe”. Popular Astronomy. Popular Astronomy.
. 1898. “An Ascent Of Popocatepetl”. Popular Astronomy. Popular Astronomy.
. 1923. “University Of Arizona Eclipse Expedition, Port Libertad, Sonora, Mexico”. Publications Of The Astronomical Society Of The Pacific XXXVI (No. 212). Publications Of The Astronomical Society Of The Pacific.
. 1898. “A Trip To The Summit Of Orizaba, The Altitudes Of Orizaba And Popocatepetl Effects Of High-Mountain Climbing”. Appalachia Vol. VIII (No. 4). Appalachia.

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