The growth and development witnessed today in modern science, engineering, and technology owes a heavy debt to the rare, refractory, and reactive metals group, of which niobium is a member. Extractive Metallurgy of Niobium presents a vivid account of the metal through its comprehensive discussions of properties and applications, resources and resource processing, chemical processing and compound preparation, metal extraction, and refining and consolidation. Typical flow sheets adopted in some leading niobium-producing countries for the beneficiation of various niobium sources are presented, and various chemical processes for producing pure forms of niobium intermediates such as chloride, fluoride, and oxide are discussed. The book also explains how to liberate the metal from its intermediates and describes the physico-chemical principles involved. It is an excellent reference for chemical metallurgists, hydrometallurgists, extraction and process metallurgists, and minerals processors. It is also valuable to a wide variety of scientists, engineers, technologists, and students interested in the topic.

Comprehensive manual for understanding and carrying out marine mammal rescue activities for stranded seals, manatees, dolphins, whales, or sea otters.

The purpose of this report is to describe the fur trade that took place at Grand Portage between Europeans and Native Americans in the 18th and 19th centuries. During this period Grand Portage was important for many reasons. A strategic geographical point in the trade route between the Great Lakes and the Canadian Northwest, it was best known as a trade depot and company headquarters in the period between 1765 and 1804.

Combining breathtaking landscape images with intriguing portraits of mountain athletes, Paul Zizka's remarkable new collection of photographs will astound mountain and photography enthusiasts alike. The Canadian Rockies are some of the most photographed mountains in the world, yet only a small portion of this phenomenal landscape ends up in the frame. It takes a passionate and adventurous photographer to venture away from the beaten track and deep into the wilderness or to push creative boundaries to reimagine the Rockies' iconic locations. For nearly a decade, Paul Zizka has dedicated himself to exploring the seldom visited corners of the Canadian Rockies and producing the most original and innovative photographs he can muster. As a photographer and adventurer, he is drawn to the extraordinary. His body of work is the result of both countless nights spent outdoors and demanding ascents of the Rockies' highest peaks. In his first book, Summits and Starlight (RMB, 2013), Zizka provided a unique collection of photos that highlighted the beauty and wildness of the Canadian Rockies landscape. The Canadian Rockies: Rediscovered provides a freshly curated selection featuring 200 of Zizka's best mountain photography and elevates the Canadian Rockies to new, unimaginable heights.

For more than a century, a Gilded Age mansion on the south side of New York City's Gramercy Park has been home to the National Arts Club (NAC), its magnificent interior a refuge from hectic city life. In this special catalog, Lowrey, curator of the club's permanent collection, documents selected works by Artist Life Members, artists who were given lifetime memberships in the club in exchange for one of their works (the program ended in 1950 with the advent of the abstract expressionists). The father of well-known American sculptor Alexander Calder, Alexander Stirling Calder, was an Artist Life Member, and his sculpture of the painter George Bellows is among the many artworks included here. Also featured are an A-to-Z listing of Artist Life Members and a brief history of the NAC. The catalog section includes full-color reproductions and descriptions of the artworks as well as brief biographies of the artist. Many members' works show European influences, particularly impressionism and the Barbizon school, while others are distinctly American, as in the Ash Can school. A fine and fitting tribute to the NAC legacy that will be of interest to club, academic, and large public libraries. 75 colour & 175 b/w illustrations

This book of photography represents National Geographic's Photo Ark, a major cross-platform initiative and lifelong project by photographer Joel Sartore to make portraits of the world's animals -- especially those that are endangered. His message: to know these animals is to save them. Sartore intends to photograph every animal in captivity in the world. He is circling the globe, visiting zoos and wildlife rescue centers to create studio portraits of 12,000 species, with an emphasis on those facing extinction. He has photographed more than 6,000 already and now, thanks to a multi-year partnership with National Geographic, he may reach his goal. This book showcases his animal portraits: from tiny to mammoth, from the Florida grasshopper sparrow to the greater one-horned rhinoceros. Paired with the prose of veteran wildlife writer Douglas Chadwick, this book presents an argument for saving all the species of our planet.