Francis Watkins was an eminent figure in his field of mathematical and optical instrument making in mid-eighteenth century London. Working from original documents, Brian Gee has uncovered the life and times of this optical instrument maker.

Francis Watkins was an eminent figure in his field of mathematical and optical instrument making in mid-eighteenth century London. Working from original documents, Brian Gee has uncovered the life and times of an optical instrument maker, who - at first glance - was not among the most prominent in his field. In fact, because Francis Watkins came from a landed background, the diversification of his assets enabled him to weather particular business storms - discussed in this book - where colleagues without such an economic cushion, were pushed into bankruptcy or forced to emigrate. He played an important role in one of the most significant legal cases to touch this profession, namely the patenting of the achromatic lens in telescopes. The book explains Watkins's origins, and how and why he was drawn into partnership with the famous Dollond firm, who at that point were Huguenot incomers. The patent for the achromatic telescope has never been satisfactorily explained in the literature, and the author has gone back to the original legal documents, never before consulted. He teases out the problems, lays out the evidence, and comes to some interesting new conclusions, showing the Dollonds as hard-headed and ruthless businessmen, ultimately extremely successful. The latter part of the book accounts for the successors of Francis Watkins, and their decline after over a century of successful business in central London.

A window into cultures of scientific practice drawing on the collection of the Whipple Museum of the History of Science. This title is also available as Open Access on Cambridge Core.

This textbook provides an accessible and pedagogical explanation of the way microscopes magnify images and covers all techniques to date in transmitted and fluorescent light microscopy. The first section covers basic optics as it relates to microscopy. The second section describes all the major optical techniques of transmitted light microscopy, starting with brightfield, through darkfield, polarized light, phase contrast, differential interference contrast, and Hoffman modulation contrast microscopy. The final third of the book covers all the techniques of fluorescence microscopy. It begins with a simple explanation of fluorescence and is followed by Widefield epifluorescence, confocal, and 2-photon microscopy. This is followed by computational imaging including restoration ('deconvolution') microscopy, and all the present super-resolution techniques. The book concludes by discussing attainable resolution using transmitted light microscopy, including a thorough discussion of the Rayleigh, Sparrow, and other criteria of resolution, ending with a short discussion of the common pitfalls that result in decreased microscope resolution. The final chapter in the book is a short history of the microscope, beginning with the ancients, then discussing three seminal natural philosophers: Leeuwenhoek, Swammerdam, and Hooke. The remaining sections of the history chapter cover mechanical and optical advancements in the history of transmitted light microscopy. Finally, it includes a short history of fluorescence microscopy starting with Köhler and Rohr's first use of fluorescence microscopy in 1905, and ending with a description of the Sarastro Phoibos 1000, the first commercial confocal microscope.

The book describes in a simple and readable format the way microscopes magnify images, and all of the techniques that are available today. It covers all the existing epifluorescence techniques including super-resolution and provides historical context on inventions pertaining to the development of the light microscope.

This book is uniquely about the relationship between the optical telescope and astronomy as they developed together. It covers the time between the telescope's pivotal invention in the 1600's up to the modern era of space-based telescopes. Over the intervening centuries, there were huge improvements in the optical resolution of telescopes, along with changes in their positioning and nature of application that forever altered the course of astronomy. For a long time, the field was an exclusive club for self-motivated stargazers who could afford to build their own telescopes. Many of these leisure-time scholars left their mark by virtue of their meticulous observations and record keeping. Although they would now be considered amateurs, these figures and their contributions were pivotal and are covered in this book alongside professionals, for the first time giving a complete picture of the history of telescopic science.

Portfolio of 8 charts accompanies v. 83.