Murrell, Alexander (2016):   Rainbow, Halos, Dawn and Dusk. The appearance of colour in the atmosphere  and Goethe’s Theory of Colours.By Johannes Kühl. 183 pages, paperback, with full color images. ISBN 978-0932776-48-8. Adonis Science Books, www.adonispress.org, $30.. Elemente der Naturwissenschaft 104, S. 93 - 95. doi:10.18756/edn.104.93