Druid Hill Park lies at the hears of Baltimore and made history as one of the first public parks in America. This beautifully illustrated history tells the story of Druid Hill from the seventeenth century until today, and celebrates this natural refuge for fun and relaxation in urban Baltimore.

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.

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.

Few philosophers are more often referred to and more often misunderstood than Machiavelli. He was truly a product of the Renaissance, and he was as much a revolutionary in the field of political philosophy as Leonardo or Michelangelo were in painting and sculpture. He watched his native Florence lose its independence to the French, thanks to poor leadership from the Medici successors to the great Lorenzo (Il Magnifico). Machiavelli was a keen observer of people, and he spent years studying events and people before writing his famous books. Descended from minor nobility, Machiavelli grew up in a household that was run by a vacillating and incompetent father. He was well educated and smart, and he entered government service as a clerk. He eventually became an important figure in the Florentine state but was defeated by the deposed Medici and Pope Julius II. He was tortured but eventually freed by the restored Medici. No longer employed, he retired to his home to write the books for which he is remembered. Machiavelli had seen the best and the worst of human nature, and he understood how the world operated. He drew his observations from life, and he was appropriately cynical in his writing, given what he had personally experienced. He was an outstanding writer, and his work remains fascinating nearly 500 years later.

Characterization of Nanoparticles: Measurement Processes for Nanoparticles surveys this fast growing field, including established methods for the physical and chemical characterization of nanoparticles. The book focuses on sample preparation issues (including potential pitfalls), with measurement procedures described in detail. In addition, the book explores data reduction, including the quantitative evaluation of the final result and its uncertainty of measurement. The results of published inter-laboratory comparisons are referred to, along with the availability of reference materials necessary for instrument calibration and method validation. The application of these methods are illustrated with practical examples on what is routine and what remains a challenge. In addition, this book summarizes promising methods still under development and analyzes the need for complementary methods to enhance the quality of nanoparticle characterization with solutions already in operation.