Tuesday, January 22, 2019
Image: Luc Viatour/Wikimedia Commons.

Water

Image: Wikimedia Commons.

Air

Image: Wikimedia Commons.

Fire

Image: Wikimedia Commons.

Humour me…

Image: NASA/Apollo 17 crew, 7 December, 1972.

Earth

Image: Franz Eugen Köhler, Köhler's Medizinal-Pflanzen. Gera-Untermhaus, 1897.

Phytonumeracy

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