Jeremy Norman Collection of Images - Creative Commons
This separate issue included 5 pages of ads in front as well as ads inside the rear wrapper. In his ads for his own publication Knight referenced that several of them were being issued in parts. With respect to The Pictorial Gallery of Arts he indicated that because subscribers objected to the cost of color plates they would be reduced in later parts of the publication. This was a publication that included some color plates printed by the process that Knight invented.