A major work to be consulted for the study of this period, as well as for insight into the life and death of the faithful martyr and covenanted Presbyterian minister James Renwick. "Mr. Carslaw has skillfully interweaved the martyr's letters with the details of his life, and produced a thrilling picture of bloody and bygone days" (Dumfries Courier). "The most complete collection yet published of the correspondence of this noble and manly Scotchman" (Govan Press). "The Letters reveal a singularly religious and devout spirit, and give us a striking insight into the sweetness and light that existed in the rugged depths of these stern and uncompromising pillars of the Covenant" (Scottish Weekly).

"Non-Euclidean Geometry is a history of the alternate geometries that have emerged since the rejection of Euclids parallel postulate. Italian mathematician ROBERTO BONOLA (18741911) begins by surveying efforts by Greek, Arab, and Renaissance mathematicians to close the gap in Euclids axiom. Then, starting with the 17th century, as mathematicians began to question whether it was actually possible to prove Euclids postulate, he examines non-Euclidean predecessors Saccheri, Lambert, Legendre, W. Bolyai, Wachter, and Thibaut, and non-Euclidean founders Gauss, Schweikart, Taurinus, Lobachevski, and J. Bolyai. He concludes with a look at later developments in non-Euclidean geometry. Including five appendices and an index of authors, Bonolas Non-Euclidean Geometry is a useful reference guide for students of mathematical history."