This book is a literary-historical enquiry into the relationship between John and Mark, with special emphasis on the feeding saga in each. Because of the differences between these key canonised texts the question of how their differences are to be understood is important in regard to our understanding of Biblical authority and interpretation, and in particular of the meaning and importance of the Eucharist.The research finds that the writers of John's Gospel knew Mark and that John shows a certain degree of influence from it, both positive and negative.Ian D. Mackay surveys the debate to date, looks at general literary and strategic similarities and differences between John and Mark, and then analyses John 6 in comparison with Mark 6-8 and certain other related texts in Mark. The detailed analysis of the debate, the points of literary similarity between the two Gospels as a whole, and the emergence of Markan strategies lifted from Mark and applied in John to supporting a literary agenda virtually contrary to that of Mark - especially in regard to the roles of the disciples and the crowds in the plot of each as a whole - may well be useful for those interested in the question of how the four Gospels relate to one another.

Papua New Guinea''s variations of climate and habitat support a diverse orchid population. This book offers an introduction to the orchids of Papua New Guinea.'

Environmental Chemistry is a relatively young science. Interest in this subject, however, is growing very rapidly and, although no agreement has been reached as yet about the exact content and limits of this interdisciplinary discipline, there appears to be increasing interest in seeing environmental topics which are based on chemistry embodied in this subject. One of the first objectives of Environmental Chemistry must be the study of the environment and of natural chemical processes which occur in the environment. A major purpose of this series on Environmental Chemistry, therefore, is to present a reasonably uniform view of various aspects of the chemistry of the environment and chemical reactions occurring in the environment. The industrial activities of man have given a new dimension to Environmental Chemistry. We have now synthesized and described over five million chemical compounds and chemical industry produces about hundred and fifty million tons of synthetic chemicals annually. We ship billions of tons of oil per year and through mining operations and other geophysical modifications, large quantities of inorganic and organic materials are released from their natural deposits. Cities and metropolitan areas of up to 15 million inhabitants produce large quantities of waste in relatively small and confined areas. Much of the chemical products and waste products of modern society are released into the environment either during production, storage, transport, use or ultimate disposal. These released materials participate in natural cycles and reactions and frequently lead to interference and disturbance of natural systems.