Saggar atmosphere, or concentrate the effects of salts, metal oxides and other materials on the surface of their ware. Some pots may be carefully prepared for saggar firing. One method creates a smooth surface covered with clay slip, terra sigillata, which responds particularly well to the saggar technique. This slip covering may be burnished to achieve a gloss. Prepared pots are nestled into saggars filled with beds of combustible materials, such as sawdust, less combustible organic materials, salts and metals. These materials ignite or fume during firing, leaving the pot buried in layers of fine ash. Ware produced in filled saggars
Rescue craft and the USA's DSRV There are still smaller boats which may be used on inland waters such as lakes or estuaries where the waters are generally calmer and shallow. These boats are often hand powered. Rescue craft A rescue craft is a boat, ship or aircraft used in rescuing. The most common are Lifeboat (rescue) for Inshore and closer to shore rescues. For operations further out from shore helicopters & ships are mainly used. Most Government agencies rely on larger ships for rescues further from shore such as Royal Navy ships in the United Kingdom and Coast Guard Cutters used