George Griffith is a british sci-fi writer who wrote many books at the turn of the century. Angel of the revolution is about a war of the future as envisioned from the victorian era involving wars with giant airships and such like. Reminded me quite a lot of michael Moorcocks warlord of the air books. The attitude to chivalry is a bit over the top by todays standards as is the authors notion of the superiority of the British empire but they are an interesting read never the less. I only found out about this book from a random link on wikipedia! You can get this for free from guttenburg.