In 1769 the Royal Academy opened its first exhibition; Gainsborough was represented by four pictures, including a whole-length portrait of Isabella, Lady Molyneux, afterwards Countess of Sefton, and another of George Pitt, first Lord Rivers. In 1770 we find six pictures and a book of drawings, in the following year five full-lengths and two landscapes, and in 1772 no less than fourteen pictures, four of which were portraits, and ten "drawings in imitation of oil-painting;" these latter, of which a few exist, are curious productions drawn in water-colour on thick coarse paper laid down on canvas and then varnished; the process is not a very happy one, and the artist's fancy for it does not appear to have been lasting. For the four following years Gainsborough's name is absent from the Academy catalogues from the cause already mentioned of a disagreement with Reynolds as recorded by Walpole. But during this time Gainsborough no doubt continued to turn out "heads" in great numbers, and not a few full-lengths, to say nothing of landscapes of varying size and importance. Several of these half-lengths are in the National Portrait Gallery and the National Gallery, while a considerable number are to be found in private collections. Sir Walter Armstrong, in his monumental work on Gainsborough,[1] puts forward very forcibly the theory that the famous "Blue Boy" at Grosvenor House was painted about the year 1770 at Bath and not in 1779 in London, as has been generally supposed. It is impossible to reproduce here his closely reasoned arguments, but his conclusion is most probably correct that the "Blue Boy" is a masterpiece of Gainsborough's "Bath period." It is a portrait of a certain Jonathan Buttall, a very wealthy ironmonger who lived at the corner of King Street and Greek Street, Soho. He is represented at full-length, standing in a landscape, in a rich blue "Van Dyck" costume, holding a large hat with a white feather in his right hand. The history of the picture and the manner of its coming into the possession of the Duke of Westminster are uncertain; it may have been sold together with the effects of Jonathan Buttall, senior, after the death of his widow in 1796, when all his property was disposed of by public auction. It seems to have belonged to Hoppner, who died in 1810, and who probably is the author of the very good copy of the "Blue Boy" which is now in America, and has sometimes been looked upon as a replica from the master's own hand.