Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.

Biocompatibility of Dental Biomaterials details and examines the fundamentals of biocompatibililty, also including strategies to combat it. As biomaterials used in the mouth are subject to different problems than those associated with the general in vivo environment, this book examines these challenges, presenting the latest research and forward-thinking strategies.

Combining natural history with beguiling autobiographical and historical narrative, To Sea and Back is a dazzling portrait of a fish whose story is closely intertwined with our own. 'Indispensable and powerful... To Sea and Back mingles history with biography and science... Shelton writes with a poet's ear... A writer to be prized.'-- Tom Adair, Scotsman The Atlantic salmon is an extraordinary and mysterious fish. In To Sea and Back, Richard Shelton combines memoir and deep scientific knowledge to reveal, from the salmon's point of view, both the riverine and marine worlds in which it lives. He explores this iconic fish's journey to reach its feeding grounds in the northern oceans before making the return over thousands of miles to the burns of its birth to reproduce. Along the way, Shelton describes the feats of exploration that gave us our first real understanding of the oceans, and shows how this iconic fish is a vital indicator of the health of our rivers and oceans. Above all, To Sea and Back is the story of Richard Shelton's lifelong passion for the sea and his attempt to solve the perennial enigmas of the salmon's secret life.

In Shelton’s fourth collection of poems, he writes of the desert Southwest, and through it gives his unique view of the world. The poems speak of landscape, marriage, freedom, and death.

While Shelton has been known primarily for his poems dealing with the landscape of the Southwest and the destruction of that landscape, the poems in this book are much more far-ranging, including many poems dealing with soocial issues (the issue of illegal immigration on our southern border, homelessness), historical events (the war in Iraq, the events of 9/11) and attitudes concerning politics and the environment. The poems are filled with sensory images, engaged in the real world, often ironic or simply off-the-wall, and their tone ranges from deeply sad, as in a requiem for Glen Canyon on the Colorado River, to the wildly funny, as in "Brief Communications from My widowed Mother."

Shelton says of his work: "I consider myself a regionalist and a surrealist. I have lived in the desert for ten years and hope that my work reflects that fact." In the forty-seven poems in this collection the poet moves backward and forward through time but always in the same landscape, the desert-mountains of southern Arizona, which foster his surrealistic view of his interior conflict. He is followed by peculiarly insistent voices from the past.