plate that is, were eaten away with aquafortis or other acid, so that the outline of letter and design was left prominent, as in stereotype. From these plates he printed off in any tint, yellow, brown, blue, required to be the prevailing or ground colour in his facsimiles; red he used for the letterpress. The page was then coloured up by hand in imitation of the original drawing with more or less variety of detail in the local hues. He ground and mixed his water-colours himself on a piece of statuary marble, after a method of his own, with common carpenter's glue diluted. The colours he used were few and simple: indigo, cobalt, gamboge, vermilion, Frankfort-black freely, ultramarine rarely, chrome not at all. These he applied with a camel's-hair brush, not with a sable, which he disliked. He taught Mrs. Blake to take off the impressions with care and delicacy, which such plates signally needed; and also to help in tinting them from his drawings with right artistic feeling; in all of which tasks she, to her honour, much delighted. The size of the plates was small, for the sake of economising copper, something under five inches by three. The number of engraved pages in the Songs of Innocence alone was twenty-seven. They were done up in boards by Mrs. Blake's hand, forming a small octavo; so that the poet and his wife did everything in making the book, writing, designing, printing, engraving, everything except manufacturing the paper; the very ink, or colour rather, they did make. Never before, surely, was a man so literally the author of his own book."
The total effect of this process is tersely expressed by Mr. Rossetti, "The art is made to permeate the poetry." It resulted in the publication of Songs of Innocence in 1789, two years after its discovery or revelation. Other productions, of that weird and symbolic character in which Blake came more and more to delight, followed in quick succession. These will claim copious notice, but for the present we may pass on to Songs of Experience, produced in 1794, so much of a companion volume to Songs of Innocence that the two are usually found within the same cover. Neither attracted much attention at the time. Charles Lamb says: "I have heard of his poems, but have never seen them." He is, however, acquainted with "Tiger, tiger," which he pronounces "glorious." The price of the two sets when issued together was from thirty shillings to two guineas—an illustration of the material service which Art can render
