The following drawings show the general outline and principal fittings of a 34 feet by 7i feet self-righting boat. Figure 1 gives the profile or broadside view, the shaded part showing that devoted to the air-cases, which give extra buoyancy.

The letter A shows the deck, and the unshaded parts the relieving-tubes, by which any water that breaks on board escapes. The shaded part of the keel, B, repre- sents the ballast composed of iron. The festooned dotted lines are the life-lines outside the boat, for men to catch hold of when overboard.

In Figure 2, the unshaded space, A, represents the uncovered part of the deck 2 B 2 412 THE LIFE-BOAT.

[IBT MAT, 1896.

B, the relieving-tubes, C, the side air-cases above the deck, D, the end air-cases, E, the ventilating scuttles, F, the water-ballast tanks, G, the plugs, and H, the pumps of the ballast tanks.

Figure 3 represents the body plan or cross sections at various distances from stem to stern.

Figure 4 gives the midship section." THE SELF-RIGHTING WATER-BALLAST LIFE-BOAT BODY P1.AN MIDSHIP SECTION.

This Life-boat possesses in the highest degree all the qualities which it is desirable that a Life-boat should possess:— 1. Great lateral stability, or resistance to upsetting. 2. Speed against a heavy sea.

8. Facility for launching and taking the shore.

4. Immediate self-discharge of any water breaking into her.

6. The important advantage of self-righting if upset.! 6. Strength.

7. Stowage room for a large number of passengers..