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

—145Add r drop of solution of Bromide of Potassium (So grains to i oz. ofwater) for dark tones, increasing the exposure and amount of bromide forwarmer tones.Fixing.—After developing, wash well, and immerse ina clean fixingbath :Hyposulphite of Soda 3 ounces.Water i6 ,,The plates will be fixed very quickly, and should be left in till a minuteor two after they seem quite fixed.Clearing.—The transparencies after fixing and washing may beimmersed for 2 or 3 minutes in an acid solution. This is very necessarywith plates developed with ferrous-oxalate.Saturated solution of alum - - - - 10 ounces.Hydrochloric acid^ ounce.This willconsiderably improve the clearness.It is advisable to give the full exposure according to which developeryou use. For making transparencies for the re-production of negatives,chloride plates are particularly suitable, owing to the absence of grain, asthe chloride of silver is so finely divided in the film.Special care must be taken that no trace of hyposulphite soda comesin contact with the plates before or after exposure, as it is certain tocause stains. Separate dishes must be used for each operation, andshould be kept alone for the purpose.COLOUREDSLIDES.Slide painting is an art entirely by itself and is not to be acquired bya few weeks' practice, or even years'. A true artist to paint to naturetruly and perfectly is born. The high class artist, on glass is as high in hisprofession as a brother academician is in his, but unfortunately becauseit is a lantern slide he paints, instead of a canvas, it is not appreciatedby the generality of people to the same extent, and sad to say thefinancial remuneration is not what it should be by a long way, in consequenceof the miserable substitutes for paintings that are put on glassand sold as coloured slides. Cheap coloured photographs are done bygirls, who are miserably paid, and who have no idea of real art andharmony of colours. The manner in which these girls are brought intothe way of earning their livelihood is a study for a labour commission,sweating is not a word strong enough to describe the system under whichK