Flora Herscheliana

Cambridge is now world-famous as a centre of science, but it wasn't always so. Before the nineteenth century, the sciences were of little importance in the University of Cambridge. But that began to change in 1819 when two young Cambridge fellows took a geological fieldtrip to the Isle of Wight. Adam Sedgwick and John Stevens Henslow spent their days there exploring, unearthing dazzling fossils, dreaming up elaborate theories about the formation of the earth, and bemoaning the lack of serious science in their ancient university. As they threw themselves into the exciting new science of geology - conjuring millions of years of history from the evidence they found in the island's rocks - they also began to dream of a new scientific society for Cambridge. This society would bring together like-minded young men who wished to learn of the latest science from overseas, and would encourage original research in Cambridge. It would be, they wrote, a society "to keep alive the spirit of inquiry". Their vision was realised when they founded the Cambridge Philosophical Society later that same year. Its founders could not have imagined the impact the Cambridge Philosophical Society would have: it was responsible for the first publication of Charles Darwin's scientific writings, and hosted some of the most heated debates about evolutionary theory in the nineteenth century; it saw the first announcement of x-ray diffraction by a young Lawrence Bragg - a technique that would revolutionise the physical, chemical and life sciences; it published the first paper by C.T.R. Wilson on his cloud chamber - a device that opened up a previously-unimaginable world of sub-atomic particles. 200 years on from the Society's foundation, this book reflects on the achievements of Sedgwick, Henslow, their peers, and their successors. Susannah Gibson explains how Cambridge moved from what Sedgwick saw as a "death-like stagnation" (really little more than a provincial training school for Church of England clergy) to being a world-leader in the sciences. And she shows how science, once a peripheral activity undertaken for interest by a small number of wealthy gentlemen, has transformed into an enormously well-funded activity that can affect every aspect of our lives.

The first-ever comprehensive account of John Herschel's life, work and legacy, shedding new light on the history of Victorian science.

Cyanotype is the most accessible and frequently used of all the alternative photographic processes. When utilized properly, it has the potential to rival other processes when it comes to detail and tonal range, but its Prussian blue color isn’t always suitable for the final photograph. Throughout history, cyanotype prints have been toned not only with various—and at times hazardous—chemicals but also with more natural ingredients like tea and coffee. Since the cyanotype itself is non-toxic, Cyanotype Toning will champion an innovative process, developed by the author, of toning cyanotypes with natural material. This process, which is easy and reliable, offers a much broader range of possible colors and even beautiful black and whites. Even duotone or tricolor prints can be attained. The book consists of two parts. Part One is a step-by-step how-to section including all the information that a student at any level needs to achieve a successfully toned print. Easy-to-understand background information is provided on how and why the process works so that readers can venture on their own into the world of natural colors. The first part also has a detailed section on all the factors that can influence the outcome, like paper choice, water quality, properties of the plants, temperature of the bath and the duration of the toning. Part Two is devoted to contemporary artists who have explored toning with botanicals and integrated the process into their creative practice. The book includes: A list of equipment and supplies needed. In depth information about useful plants and the specific properties that make them suitable for toning cyanotypes. Concise step-by-step instructions for printing cyanotypes successfully. A chart of more than 60 tested papers with recommendations on paper choice. Step-by-step generic instructions on toning with botanicals. Troubleshooting toning with botanicals. More detailed recipes for specific colors with information about the plants. Step-by-step instructions on how to print duotone and tricolor prints. A range of creative ideas on how to use the process in classrooms and with different age groups. A comprehensive list of more than 380 tested parts of plants and possible color outcomes. Using botanicals to tone cyanotypes broadens the color spectrum, enlarges creative possibilities and makes the cyanotype process even more versatile. The process is not cut and dried science but a limitless field for discovery and surprises. Cyanotype Toning provides accessible information and instructions for readers at all levels. It is comprehensive and explanatory, so that readers can expand on the subject on their own, as did the contemporary artists who share their experiences and the works they have created using this innovative toning process.

Kirstenbosch is a name that resonates round the world as the home of a uniquely rich flora in a setting of unsurpassed beauty, and in 2013 Kirstenbosch celebrates its 100th anniversary. This centenary publication tells the story of its establishment, its setbacks and triumphs, its benefactors and heros. It outlines the Garden's scientific eminence - as the repository of knowledge on our prized flora - and details the many attractions that make it a favourite destination for Capetonians and visitors alike. With a finely crafted text by acclaimed ecologist Brian Huntley, and lavishly illustrated with photographs and artworks that tell the history and reflect the beauty of the Garden, this will be a sought-after volume - a quality memento for visitors to Kirstenbosch and a keepsake for the many thousands of locals who flock there annually. Beautifully presented in a colourful dustjacket, this book will be a tasteful, all-occasions gift, and one to cherish.

Sir John Herschel, one of the most noted astronomers of his time, arrived at the Cape in 1834 to spend four years observing the southern sky. During this time he produced over 100 exquisite landscape sketches. They are reproduced in this book, together with a narrative text which provides background to Herschel's life and work and sets the illustrations in their historical and geographical context.

In 1833 John Herschel sailed from London to Cape Town, southern Africa, to undertake (at his own expense) an astronomical exploration of the southern heavens, as well as a terrestrial exploration of the area around Cape Town. After his return to England in 1838, and as a result of his voyage, he was highly esteemed and became Britain's most recognized man of science. In 1847 his southern hemisphere astronomical observations were published as the Cape Results. The main argument of Ruskin's book is that Herschel's voyage and the publication of the Cape Results, in addition to their contemporary scientific importance, were also significant for nineteenth-century culture and politics. In this book it is demonstrated that the reason for Herschel's widespread cultural renown was the popular notion that his voyage to the Cape was a project aligned with the imperial ambitions of the British government. By leaving England for one of its colonies, and pursuing there a significant scientific project, Herschel was seen in the same light as other British men of science (like James Cook and Richard Lander) who had also undertaken voyages of exploration and discovery at the behest of their nation. It is then demonstrated that the production of the Cape Results, in part because of Herschel's status as Britain's scientific figurehead, was a significant political event. Herschel's decision to journey to the Cape for the purpose of surveying the southern heavens was of great significance to almost all of Britain and much of the continent. It is the purpose of this book to make a case for the scientific, cultural, and political significance of Herschel's Cape voyage and astronomical observations, as a means of demonstrating the relationship of scientific practice to broader aspects of imperial culture and politics in the nineteenth century.