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Murray on Raining Trees; Forms and Relations of Volcanoes; Cuticular Pores of Plants; Volcano of Pietra Mala; Milk Tree of Demarara; Productiveness of Plants and Animals; Height of the Perpetual Snows on the Cordillera of Peru; Gerard's Botanical Journey in the Himala Mountains; Changes of temperature in Plants; Humboldt's account of the Gold and Platina district of Russia; Sir H. Davy on the durability of Stone; Dr.
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