Advancements in science and engineering have occurred at a surprisingly rapid pace since the release of the seventh edition of this encyclopedia. Large portions of the reference have required comprehensive rewriting and new illustrations. Scores of new topics have been included to create this thoroughly updated eighth edition. The appearance of this new edition in 1994 marks the continuation of a tradition commenced well over a half-century ago in 1938 Van Nostrand's Scientific Encyclopedia, First Edition, was published and welcomed by educators worldwide at a time when what we know today as modern science was just getting underway. The early encyclopedia was well received by students and educators alike during a critical time span when science became established as a major factor in shaping the progress and economy of individual nations and at the global level. A vital need existed for a permanent science reference that could be updated periodically and made conveniently available to audiences that numbered in the millions. The pioneering VNSE met these criteria and continues today as a reliable technical information source for making private and public decisions that present a backdrop of technical alternatives.

Sir Roderick Murchison (1792-1871) was a giant of the imperial age. His career was tied intimately to the expansion of the political, economic and scientific realm of the British Empire. A founding father of geological science and geographical exploration, he was both President of the Royal Geographical Society and Director-General of the Geological Survey. His identification of the Silurian system in geology - and subsequent prediction of the location of economic riches - are as notable as his patronage of David Livingstone and other figures of Victorian exploration. More than any contemporary, Murchison emerged as the eminent Victorian who 'sold' science to the imperial government, on the grounds of utility as much as prestige. Robert Stafford uses this study of a man's life and work to investigate the bargain struck between science and the forces of imperialism in mid-Victorian Britain. This illuminates the broader, and still present, intimacy between science and government.