The Art of projection and complete magic lantern ... - Yesterday Image

159on any slide providing it is dark enough, failing that, the light shouldbe lowered.The Pluviatrope or Rain Slide.—This is on a similar principleto the "Snow Storm," the set glass is blacked, streaks being cut outwith a point diagonally to represent rain, over this a gauge works, givinga scintillating appearance when moving. Altogether, it is not such asuccessful slide as the snow.The Chromat rope.An illusion produced by two glasses on whichdesigns are painted, revolving in different directions. There appearsat the present time a falling away from the use of this class of slides.We presume it to be a reaction to the over-usage of them a few yearsback, when no lantern show was thought complete without its display ofChromatropes ; there is a great variety of patterns, some especially aremost unique in their design, representing church windows, shamrock,ferns, &c. When a biunial or triple is used some very pretty changesare produced by working two or more chromatropes together, only thedesigns should harmonise somewhat : for instance, into a small patterndark colour, dissolve a large pattern bright tinted design, not alwaysturning the handles in the same direction, but often opposite to eachother. To reflect a chromatrope on to the ceiling is done by holding amirror at an angle in front of the lens of lantern.