Show rainbow turns turtle not very many persons have seen an inverted rainbow although the phenomenon sometimes appears atthe at the italian observatory of rocca da papa not long ago the director and a party of visitors were fortunate enough to see one the morning was showery and as aa the party looked down from an elevation of 2300 feet they saw in the campagna a perfect rainbow with concave side elde up the middle point bearing to the northeast from the eiffel tower in paris one has also been seen in this case the rainbow balun w being double and extending above and below the horizon to form forin two concentric circles nearly complete generally the inverted rainbow Is to be seen only in the mountains and then very rarely the phenomenon of course Is due merely to the position of the observer which must bo be above the refracting agent in instead a te a dof of below |