The contents of these boxes needed careful inspection. The large one was first emptied. The sides of this box were wrenched off, disclosing a large glass case, seven feet six inches by two feet eight inches, and sixteen inches in height. This glass coffin--for such, indeed, it resembled--was carefully taken out and set upon the floor. Then followed, from the same box, an ordinary set of single bed-springs, or woven-wire mattress, such as are used on single beds. Cobb then took from one of the smaller boxes a pair of iron horses or trestles, and placed them in one corner of the room, with their legs firmly fixed into the cemented floor. Carefully lifting the glass case, he and Craft set it upon the trestles, leaving a space of about thirty inches between it and the floor. Next they hinged the wire mattress to the trestles, so that there were full twenty inches between it and the bottom of the glass case. From the next box unpacked were taken seventy-five cells of Grenet battery. These cells were of peculiar construction, and differed from the regular style in that the zincs were drawn up and held clear of the electropoion fluid by slight fastenings, which terminated in glass bulbs blown in the tops. Cobb had selected this battery on account of its great strength, and for the reason that it would remain inactive for an indefinite time, provided the zincs were kept out of the fluid. Placing an iron stand near the head of the case, he and Hathaway arranged the jars upon it, and connected the various cells for intensity. The wires were then run through small holes in the top glass of the large case, being insulated with a special covering that would withstand age without deteriorating. The next thing was to set in position, over the row of battery cells, an iron beam, with a fall of about four inches, the fall terminating in two sockets. This beam was held over and in position by a pulley, over which ran a wire rope composed of aluminum strands, and having attached to it a fifty-pound weight. Connected to the two poles of the battery were insulated wires, terminating in flat discs of copper. These wires were about thirty feet long, and passed through the holes in the top of the glass case, the copper discs being inside. From another box were taken two bottles of fine old French brandy, two bottles of whisky, a small bottle of Valentine's beef juice, and several cans of preserved meats, which had been prepared by Cobb, and the cans made of aluminum for the purpose. An alcohol heater was also taken out and set up in such a manner that a glass reservoir could, upon being turned on, feed it with alcohol. Through this heater ran wires joined to a platinum strip and connected with twenty cells of the battery. A cup and saucer, knife, fork, can-opener, spoon, and a couple of stew-pans, were next taken out and laid by the heater.