The New Photography

A new photography is iuteresting the mechanical minds in the nniversity meohauioal laboratory and experiments with it Tne8day aid Wednesday evenings were very successful. Acoordiug to entbtisiasts the new photography ia to be in vogne only a short time before the medical world will be able to seonre irnages of the interaal organs througb the flesh, bunes and tissnes of the living man, and bythatmeans, looate "blind" diseases. The result, while it may mean much to the physician, wonld of oourse have a tendency to bring a robust man to a bed of sickness shoold he have the opportunity to touoh the button and discover within himself "all the tila that flesh is heir to. " fiud himself full of liver complaint, appendicitis, tuberculosas, tobáceo heart and Bright's dis9ase. The experiment Tnesday night was made by Prof. John O. Reed, assisted by Prof C. J. Taylor and R. H. Miller. The result was the securinfc of a good picture of a key and a penny taken through an opaque píate, a pieceof oard board and tsvothicknesses of cloth. The means of obtaiuing an image through opaque substances is a discovery oí Prof. Roentgen, of Wurzburg. Prof. John Trowbridge, of Harvard university, and Prof. Arthur W. Wright, of Yale, have made several experirnents and suocessfully. Prof. Trowbridge bas photographed the bones of the hand and Prof. Wright has brought to the photographic paper three ooms taken through tw.o thicknesses of leather, the lead in a pencil and three metal balls through a pasteboard box. The photograph is taken by whafc is known as a cathode rays. The cathode is difficult to describe in ordinary language. It may be described as a small disk, or plate of aluminuin, enclosed in a glass bulb from which tbe air has been previonsly exhausted. Opposite the cathode is th anode, the terïuiual of a wire coüiieeted witla the battories. When a powerful current is passed between the anode and the cathcde, and a circuit created, a light results.