Ah, the good-old-days, when waiting for the next slide in a slide show was fraught with momentousness.  The caption reads, "Just at that moment the showman thrust [emphasis ours] a fresh slide into his lantern, and presented to them another scene even more startling than the first."  Today's Flash slide shows aren't nearly so flashy, eh?  How can a showman thrust [emphasis ours again, though all this thrusting is admittedly wearing us out] a JPG?  We're reminded of beloved British comedian Stewart Lee, who recently asked his audience if anyone was old enough to remember when there were actually things, like letters written on paper or music recorded onto plastic discs.  This item from Frank Leslie's Illustrated, 1891, will forever make us pine for the nearly unbearable drama of magic lantern slides every time we open a lousy JPG.