Aldebaran and the Pleiades The Barometer The Brook Calcite, Marble, and Limestone Capella and the Heavenly Twins Cassiopeia's Chair, Cepheus, and the Dragon Crystal Growth Experiments To Show Air Pressure Feldspar Granite How To Begin Star Study How To Make a Sundial How To Read Weather Maps How To Study Minerals How a Brook Drops Its Load The Magnet Mica The Moon Quartz The Relations of the Sun to the Earth Salt The Soil The Stars of Summer The Story of the Stars The Sun The Tropic of Cancer and Planting of the Garden The Two Dog Stars, Sirius and Procyon Water Forms The Weather The Winter Stars The Zodiac and Its Signs
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