In the second half of the 18th century, F.M. Regenfuss (the Royal Engraver to King Frederic V of Denmark) created a set of 12 hand-coloured plates with 78 figures - masterpieces from both the aesthetic and zoological point of view - each showing a number of beautifully arranged shells. These illustrations are so accurate that nearly all species shown can be easily recognized. The original French texts were translated, and an expert from the Zoological Museum of Amsterdam compared the hand-coloured plates and the accompanying texts with modern nomenclature; thus both the original and the recent scientific names of all species are given. At last, this extremely rare book is available in digital form for everyone interested in shells or just in the art of scientific drawing unattained in the years after Regenfuss.

Estuaries and Wetlands are important coastal resources which are subject to a great deal of environmental stress. Dredging, construction, creation of intertidal wetlands, regulation of fresh- water flow, and pollution are just a few of the activities which affect these coastal systems. The need to predict the effects of these perturbations upon ecosystem dynamics, particularly estuarine fisheries, as well as on physical effects, such as sedimentation and salt intrusion, is of paramount importance. Prediction requires the use of models, but no model is likely to be satisfactory unless fundamental physical, chemical, sedimentological, and biological processes are quantitatively understood, and the appropriate time and space scales known. With these considerations in mind, the Environmental Laboratory, U. S. Army Engineer Haterways Experiment Station,* Vicksburg, Mississippi, sponsored a workshop on "Estuarine and Wetland Processes and Water Quality Modeling" held in New Orleans, June 1979. The contents of this volume have been selected from the workshop papers. The resulting book, perhaps more than any other symposium proceed- ings on estuaries and wetlands, attempts to review important pro- cesses and place them in a modeling context. There is also a distinct applied tinge to a number of the contributions since some of the research studies were motivated by environmental assessments. The difference in title between this volume and the workshop re- flects more accurately the contents of the published papers.

Finally available in paperback, including the story from the Netflix documentary ‘My Octopus Teacher’ and many other remarkable creatures from the great African Sea Forest.

Sea Change takes you on an evocative journey into the secret life of an almost unknown ecosystem; the beautiful kelp forest of Southern Africa. Craig and Ross spent eight years exploring this sea forest together, diving almost every day.

This is the story of what they found in the wild, and how it has transformed their lives.