Submarine Appliances And Their Uses
Deep Sea Diving, &c., &c.

by a good fitter, and examined to see that it is in proper working order. The helmet valves should be unscrewed and examined to see that they are free from verdigris, and should be slightly greased with tallow to prevent leakage, and the springs should be examined and renewed if necessary. All the screws of the helmet, breast-plate, air pipes, etc., must be kept free from verdigris, and clean. See that no oil or grease of any DESCRIPTION, OR TAR, COMES IN CONTACT WITH THE DIVING DRESS, AIR PIPE, OR OTHER INDIARUBBER ARTICLES. When a piston rod of a double-acting pump works loose, the screws at the top of the stuffing box must be tightened a little with a spanner. Care of the Indiarubber Dresses.—Indiarubber diving dresses should never be packed away in a wet or damp state; they must be thoroughly dried, both inside and outside, before so doing, otherwise they will mildew, and become so rotten as to be of very little service afterwards. The following represents an easy and efficient mode of drying the diving dress :— Photo No. 19. Take two pieces of wood about 8ft. long, nail or screw them together in the form of St. Andrew’s cross, place them inside the dress, and pass another piece through the arms to keep them distended. The dress can be then leant at a slight angle, in as cool and shady a place as possible, until it is dry. 34