Note E — XX.—HOW TO PHOTOGRAPH.

Many preparations are advertised for sticking the prints to the cards, but common starch paste is about as good as anything. Mix the starch in cold water, very thin, and then boil it, constantly stirring it to break up lumps, and remove from the fire soon as it reaches the boiling point. The prints should be wet and pasted on while quite moist, rubbing them down beneath a sheet of blotting-paper from the centre to the margin, in order to expel all air, that would otherwise cause lumps or wrinkles.