The concept of an all powerful ocean is today obsolete,"" and man needs to acknowledge that his progress can mean death to the ocean. Filled as it is with great promise and great frailty, it requires active consideration and concern. Mr. Marx ticks off the effects of human exploitation of the sea as food and oil source, recreation ground, dump (""The bottomless dump is daily becoming more and more an illusion""). He records the struggle for military and piscine rights which has a long history, efforts to arbitrate (Grotius' Mare Liberum) and appropriate (today's CEP nations, the U.S.-U.S.S.R. tussle to occupy the ocean). Mr. Marx' book is at once natural and human history and assessment;as such, it covers the waterfront.