King Charles I of England granted the Calvert Family a charter for the Colony of Maryland in 1632. Forty-nine years later, in 1681, Charles II awarded the Penn Family a similar charter for Pennsylvania. However, the ambiguity of the language and lack of precision in both grants sowed the seeds of dispute over a sixty-nine mile parcel of land between the 39th and 40th degrees of North Latitude. Had the Calverts prevailed, part of the City of Philadelphia would now be in Maryland, and had the Penns succeeded Baltimore would today be in the state of Pennsylvania! Arguments between the opposing parties dragged on for more than half a century before the English Courts finally issued a decree: Neither the Calverts nor the Penns would prevail; the border between Maryland and Pennsylvania would be a line of latitude located fifteen miles due south of the most southern point in the city of Philadelphia. As a result, in 1763 two British mathematicians and surveyors-Charles Mason and Jeremiah Dixon-were commissioned to accurately survey and mark the 244- mile boundary between the two colonies.We all have referred to the resulting Mason Dixon Line in casual conversation as the line that divides Pennsylvania and Maryland, or perhaps as the line between the free and slave states during the Civil War. But what do we actually know about Charles Mason and Jeremiah Dixon, and why is an imaginary line named after them? Author Jack Layton decided to find out. Over the course of several years he literally walked the line, recording his observations and taking revealing photographs along the entire route. The results-informative, entertaining, ironic and amusing-form the heart of this book. Luckily for us, Charles Mason was a meticulous man who kept a detailed journal of his remarkable experiences in the New World. Mr. Layton used his daily record, kept during the three years that he and his partner spent traipsing through the mountains and valleys of America, as the backbone for this book, with liberal use of direct quotations. Amazingly, some of what the men saw and described has not changed much in the intervening two-and-a-half centuries, while other sights would not be recognizable at all today. Enjoy a trip back to colonial America. Join Jack Layton as he takes a walk in the footsteps of history, following the path blazed by two men whose names and the boundary they surveyed are today a household word-the Mason Dixon Line!
DESCENDANTS OF CONRAD KRESGE -THE STORY OF A SMALL TWIG This is the story of two families. One founded an empire that at one time was the second largest retail store chain in North America. The other, a very small twig of that family tree. The first family became obscenely rich. The other has a few nickels to rub together but is rich in experiences and travels. We are all descendants of Conrad Kresge who came to America in the 1740's. His great-great grandson, Sebastian Sperle Kresge, founded the S.S. Kresge Company in 1897. His stores proliferated throughout the 20th century, eventually becoming Kmart, in 1962. Its rise and fall told from that time, until its predicted demise in 2018. Their story also parallels a unique time in American history starting near the beginning of the 20th century. Inventions like the automobile, telephone, airplane, phonograph, radio and motion pictures that would shape the coming century were in their infancy. Rural America was transforming to an urban and suburban country.
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This is a brand new edition of the leading reference work on histological techniques. It is an essential and invaluable resource suited to all those involved with histological preparations and applications, from the student to the highly experienced laboratory professional. This is a one stop reference book that the trainee histotechnologist can purchase at the beginning of his career and which will remain valuable to him as he increasingly gains experience in daily practice. Thoroughly revised and up-dated edition of the standard reference work in histotechnology that successfully integrates both theory and practice.Provides a single comprehensive resource on the tried and tested investigative techniques as well as coverage of the latest technical developments. Over 30 international expert contributors all of whom are involved in teaching, research and practice.Provides authoritative guidance on principles and practice of fixation and staining. Extensive use of summary tables, charts and boxes.Information is well set out and easy to retrieve. Six useful appendices included (SI units, solution preparation, specimen mounting, solubility). Provides practical information on measurements, preparation solutions that are used in daily laboratory practice. Color photomicrographs used extensively throughout. Better replicates the actual appearance of the specimen under the microscope. Brand new co-editors. New material on immunohistochemical and molecular diagnostic techniques.Enables user to keep abreast of latest advances in the field.
For 40 years, Bancroft’s Theory and Practice of Histological Techniques has established itself as the standard reference for histotechnologists and laboratory scientists, as well as histopathologists. With coverage of the full range of histological techniques used in medical laboratories and pathology departments, it provides a strong foundation in all aspects of histological technology – from basic methods of section preparation and staining, to advanced diagnostic techniques such as immunocytochemistry and molecular testing. This revised and updated 8th Edition by Kim S. Suvarna, Christopher Layton, and John D. Bancroft is a one-stop reference for all those involved with histological preparations and applications, from student to highly advanced laboratory professional.
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