"[In Vol. II] 24 heliotypes, 9 from photographs of sculpture or architecture, the remaining from art. Edwards and Kidd, then the Heliotype Company Limited, 219 Regent Street, London (see: Hanson Collection catalog, p. 38). [In Vol. III] 30...
"The various methods [of printing represented] are Phototypie (collotype), Heliogravure, Photoglyptie (Woodburytype), Similgravure (Half-tone), Photogravure, Photo-Chromo-Typographie. This catalogue contains examples by most of the major French...