If you thought a large IC engine was that rusty hulk you saw on a flat-bed trailer at your local vintage rally, think again. This book, reprinting articles from 1906 issues of Cassier’s Magazine contains details of British, Continental and American gas engines which have been on steroids - how about one with a bore of 42” and a stroke of 60” running at 50 to 75 rpm and developing around 3000 hp? And there are larger machines in this book! These engines represent an intermediate stage between steam and highly efficient IC engines, or electric power, for industry. Lots of photos, drawings and technical info on construction, layout etc. Fascinating! 64 page paperback. Lindsay Publications.