Download or read book Saltpeter written by David Cressy and published by Oxford University Press. This book was released on 2013 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: The story of the science, the technology, the politics and the military applications of saltpeter - the vital but mysterious substance that governments from the Tudors to the Victorians regarded as an 'inestimable treasure'.