Frontispiece to the first - and only - edition of Memoirs. A portrait of William Collins painted by his friend John Linnell (1792-1882) and engraved by H Robinson. Wilkie wrote 

"The portrait--from which Mr. H. Robinson has produced the faithful and spirited engraving presented to the reader--exhibits Mr. Collins in his more reflective moods, pourtraying the expression assumed by his countenance when might be mentally arranging the composition of a new picture, or pondering over any recent impressions that he had derived from Art. It is considered to be a most characteristic likeness by all who were personally acquainted with him."

Memoirs of the Life of William Collins, Esq., R.A. II 340