Underwater work by John E . Cayford , first published in 1959 this copy is a second edition and forth printing from 1982 . The book is very good condition pages are tight and clean , dust jacket is good but looks dull because of a plastic outer cover , it does have apiece missing from the very bottom of the spine ( check photos ) . The book covers all aspects of underwater work although out dated , the information is still useful , has some good period pictures , please check photos for condition .