Biblio
. 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.
. 1900. “Weather Prediction In Northern Arizona”. The Coconino Sun. The Coconino Sun.
. 1898. “Scales Of Seeing”. Popular Astronomy. Popular Astronomy.
. 1928. “Climate And Trees”. Nature Magazine. Nature Magazine.
. 1908. “Weather Cycles In The Growth Of Big Trees”. Monthly Weather Review. Monthly Weather Review.
. 1899. “A Summary Of Planetary Work At The Lowell Observatory And The Conditions Under Which It Has Been Performed”. Popular Astronomy. Popular Astronomy.
. “The Crescentic Dunes Of Peru”. Appalachia XII (No.1). Appalachia.
. 1892. “Indications Of A Rainy Period In Southern Peru”. Science. Science.
. 1920. “Evidence Of Climatic Effects In The Annual Rings”. Ecology 1 (No. 1). Ecology.
. 1931. “Tree Growth And Solar Cycles”. In Paper Presented At International Research Council. Paper Presented At International Research Council.
. 1925. “Phi Kappa Phi Installation Address”.
. 1921. “Dating Our Prehistoric Ruins”. Natural History. Natural History.
. “Dendrochronology And Studies In Cyclics”. University Of Pennsylvania Bicentennial Conference. University Of Pennsylvania Bicentennial Conference.
. 1895. “A Combination Telescope And Dome”. Astrophysical Journal. Astrophysical Journal.
. 1898. “Stellar Bands In The Zodiac From Gemini To Scorpio”. Popular Astronomy. Popular Astronomy.
. 1915. “An Optical Photograph”. The Astrophysical Journal XLI (No. 3). The Astrophysical Journal.
. 1898. “The Markings On Venus”. Monthly Notices Of The Royal Astronomical Society LVIII (No. 78). Monthly Notices Of The Royal Astronomical Society.
. 1898. “The First Satellite Of Jupiter”. Abdruck Aus Den Astr. Nachr. Bd. 146.. Abdruck Aus Den Astr. Nachr. Bd. 146.
. 1894. “Gegenschein Observations”.
. 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.
. 1931. “Trees And Droughts In Arizona”. Professional Engineer. Professional Engineer.
. 1914. “A Photographic Periodogram Of The Sun-Spot Numbers”. The Astrophysical Journal, XL (No. 3). The Astrophysical Journal, .
. 1916. “The Callendar Sunshine Recorder And Some Of The World-Wide Problem To Which This Instrument Can Be Applied”. In Second Pan-American Scientific Conference. Second Pan-American Scientific Conference.

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