The second edition of this well established book has been comprehensively updated in line with recent developments. After presenting the fundamentals of stress and strain, and their graphical representation, the book includes chapters on failure states in soils and rocks, observed and elastic paths, and the use of discontinuities. New sections include shear bands and small strain behaviour, as well as the use of elastic shear modular stress calculations and discontinuities in plasticity calculations. Expanded coverage is also given to dilitancy of soils and roughness of rock joints.

Contents:
1. Stresses, Strains and Mohr Circles. 2. Failure States in Soil. 3. Failure in Rock. 4. Applied Laboratory Stress Paths. 5. Elastic Stress Paths and Small Strains. 6. The Use of Stress Discontinuities in Undrained Plasticity Calculations. 7. The Use of Stress Discontinuities in Drained Plasticity Calculations. 8. Stress Characteristics and Slip Lines.

'A book to be absolutely devoured' Lucy Holland, author of Sistersong Off the coast of Ireland sits a legendary island hidden by magic. A place of ruins and ancient trees, sea-salt air and fairy lore, Hy-Brasil is the only home Biddy has ever known. Washed up on its shore as a baby, Biddy lives a quiet life with her guardian, the mercurial magician Rowan. A life she finds increasingly stifling. One night, Rowan fails to return from his mysterious travels. To find him, Biddy must venture into the outside world for the first time. But Rowan has powerful enemies-forces who have hoarded the world's magic and have set their sights on the magician's many secrets. Biddy may be the key to stopping them. Yet the closer she gets to answers, the more she questions everything she's ever believed about Rowan, her past, and the nature of magic itself. A WORLD OF WONDER AND MIRACLES UNFURLS IN THIS TIMELESS COMING-OF-AGE FANTASY 'That most rare and precious thing: a brand-new classic, both wholly original and wonderfully nostalgic. It's an absolute treasure' Alix E. Harrow, author of The Ten Thousand Doors of January 'Draws you in and make you believe that magic does exist. I absolutely adored it!' Andrea Stewart, author of The Bone Shard Daughter 'An enchantment of a novel. A coming-of-age story teeming with magic, with characters striving to change an unjust world . . . this is a book to be savoured' E. J. Beaton, author of The Councillor

A Radical Act of Free Magic is the epic conclusion to the genre-defying Shadow Histories series following A Declaration of the Rights of Magicians; a sweeping tale of revolution and wonder in a world not quite like our own. The Concord has been broken, and a war of magic engulfs the world. In France, the brilliant young battle-mage Napoleon Bonaparte and has all but conquered Europe. Britain fights back, protected by the gulf of the channel and powerful fire-magic, but Wilberforce's own battle to bring about free magic and abolition has met a dead end. In Saint Domingue, Fina watches as Toussaint Louverture navigates these opposing forces to liberate the country. But there is another, even darker war being fought beneath the surface. A blood magician is using the Revolutionary Wars to bring about a return to dark magic. Across the world, only a few know of his existence and the choices they make will shape the new age of magic. Praise for A Declaration of the Rights of Magicians: 'A rich, sprawling epic full of history and magic' Alix E. Harrow, Hugo award-winning author 'An absolute delight to read' Genevieve Cogman, author of The Invisible Library 'Impressively intricate; fans of the magic-and-history of Jonathan Strange & Mr Norrell will be delighted' Alexandra Rowland, author of A Conspiracy of Truths The Shadow Histories A Declaration of the Rights of Magicians A Radical Act of Free Magic For more from H. G. Parry, check out The Unlikely Escape of Uriah Heep.

'A rich, sprawling epic full of history and magic.' Alix E. Harrow, Hugo award-winning author A sweeping tale of revolution and wonder in a world not quite like our own, A Declaration of the Rights of Magicians is a genre-defying story of magic, war, and the struggle for freedom. It is the Age of Enlightenment -- of new and magical political movements, from the necromancer Robespierre calling for revolution in France to the weather mage Toussaint L'Ouverture leading the slaves of Haiti in their fight for freedom, to the bold new Prime Minister William Pitt weighing the legalization of magic amongst commoners in Britain and abolition throughout its colonies overseas. But amidst all of the upheaval of the enlightened world, there is an unknown force inciting all of human civilisation into violent conflict. And it will require the combined efforts of revolutionaries, magicians, and abolitionists to unmask this hidden enemy before the whole world falls to chaos. For more from H.G. Parry, check out The Unlikely Escape of Uriah Heep 'Impressively intricate; fans of the magic-and-history of Jonathan Strange & Mr Norrell will be delighted.' Alexandra Rowland, author of A Conspiracy of Truths 'A beautiful tapestry of words, a combination of carefully observed and researched history and a well-thought-out and fascinating system of magic. An absolute delight to read.' Genevieve Cogman, author of The Invisible Library 'Puts a human face on the titans of the past, while weaving in supernatural elements that add a whole new dimension. I stayed up well past my bedtime to find out what happens next.' Marie Brennan, author of the Memoirs of Lady Trent series