I had the good fortune to retain the best of Mr. Hughes's customers, and make new ones of my own, as well as many staunch and valuable friends, both among what I may term laymen and brother Masons, while I resided in Glasgow. Most of my sitters were of the professional classes, and the _elite_ of the city, among whom were Sir Archibald Alison, the historian, Col. (now General) Sir Archibald Alison, Dr. Arnott, Professor Ramsey, and many of the princely merchants and manufacturers. Some of my other patrons--for I did all kinds of photographic work--were the late Norman Macbeth, Daniel McNee (afterwards Sir Daniel), and President of the Scottish Academy of Art, and also Her Majesty the Queen, for she bought two of my photographs of Glasgow Cathedral, and a copy of my illustration of Hood's "Song of the Shirt," copies of which I possess now, and doubtless so does Her Majesty. One of the most interesting portraits I remember taking while I was in Glasgow was that of John Robertson, who constructed the first marine steam engine. He was associated with Henry Bell, and fitted the "Comet" with her engine. Mr. Napier senr., the celebrated engineer on the Clyde, brought Robertson to sit to me, and ordered a great many copies. I also took a portrait of Harry Clasper, of rowing and boat-building notoriety, which was engraved and published in the _Illustrated London News_. Several of my portraits were engraved both on wood and steel, and published. At the photographic exhibition in connection with the meeting of the British Association held in Glasgow, in 1855, I saw the largest collodion positive on glass that ever was made to my knowledge. The picture was thirty-six inches long, a view of Gourock, or some such place down the Clyde, taken by Mr. Kibble. The glass was British plate, and cost about £1. I thought it a great evidence of British pluck to attempt such a size. When I saw Mr. Kibble I told him so, and expressed an opinion that I thought it a waste of time, labour, and money not to have made a negative when he was at such work. He took the hint, and at the next photographic exhibition he showed a silver print the same size. Mr. Kibble was an undoubted enthusiast, and kept a donkey to drag his huge camera from place to place. My pictures frequently appeared at the Glasgow exhibition, but at one, which was burnt down, I lost all my Daguerreotype views of Niagara Falls, Whipple's views of the moon, and many other valuable pictures, portraits, and views, which could never be replaced. [Illustration: THIRD PERIOD. COLLODION. FREDERICK SCOTT ARCHER. _From Glass Positive by R. Cade, Ipswich. 1855._ HEVER CASTLE, KENT. _Copy of Glass Positive taken by F. Scott Archer in 1849._] THIRD PERIOD. COLLODION TRIUMPHANT.