I just ordered this book
Thomson, John:
Illustrations of China and its People, London, Sampson, Low, Marston, Low and Searle, 1873-4, 4 volumes, folio (36 x 49 cm), 96 plates with a total of 218 collotype images of China, plates protected by leaves with letterpress descriptive text.
1874, 2nd edition.
1977, Hong Kong, J. Warner Publications, China: the Land and Its People: Early Photographs by John Thomson, reprint, 160 pp.
1982, New York, Dover Publications, China and its People in Early Photographs, unabridged reprint, 272 pp.