VENTILATION OF HOLDS

607

ventilation is needed, and the ventilators should be turned backs to
the wind. Coal is le»s likely to ignite if starved of air. See page 392.

When ted weather approaches, especially at night, and the
vessel is lib >ly to ship heavy water, it may be necessary to turn all
ventilators oack to wind and perhaps to put a canvas cover over the

A

B

DECK

Fig. H.—Ventilator.
cowl if they are not high enough to prevent spray and sea water
getting into them. During heavy weather at night time it is desir-
able to inspect occasionally the ventilators and hatch covers to
ensure that everything on deck, fixed or movable, fittings or cargo*
is secure, and that deck openings are properly covered and water-
tight.
FROZEN MEAT.
The following photographs illustrate a method of slinging carcases
of frozen meat. The carcases are stowed in the canvas sling head
and tail alternately. About 80 carcases can be lifted in one sling
without risk of damage and with a minimum opening of the