C. A. Bayly 
Imperial Meridian [PDF ebook] 
The British Empire and the World 1780-1830

In this impressive and ambitious survey Dr Bayly studies the rise, apogee and decline of what has come to be called `the Second British Empire‘ — the great expansion of British dominion overseas (particularly in Asia and the Middle East) during the French Revolutionary and Napoleonic era that, coming between the loss of America and the subsequent partition of Africa, constitutes the central phase of British imperial history.