Google Books + Chinese materials

K.M. Lawson at the multi-author China history blog Frog in a Well, provides a detailed tutorial on how to use Google Books to find open source historical material about China, and how to download texts in pdf format. Google Books allows you to do full-text searches of the books that are indexed already by Google, and apparently, to download some of those texts as well.

Some examples of books that can be downloaded completely, just by searching for those with China in the title:
Odes to Kien Long: The Present Emperor of China; with The Quakers, a Tale; To a Fly, Drowned in a…
By Peter Pindar 1792

A Wayfarer in China: Impressions of a Trip Across West China and Mongolia
By Elizabeth Kimball Kendall 1913

The People of China: Their Country, History, Life, Ideas, and Relations with the Foreigner
By J. W. (John William) Robertson Scott 1900

Opium-smoking in America and China
By H. H. (Harry Hubbell) Kane 1882