Perhaps the most constant friend, and certainly the best adviser, our caricaturist retained to the grave was his principal publisher, Mr. Rudolph Ackermann. We have mentioned this gentleman last among the personal associates of Rowlandson, as his untiring services only ended with the life of the artist.

The name of Rudolph Ackermann, who died March 30, 1834, is worthy of more than a passing mention; he has been cited as one of the first natives of Germany who, by far-sighted and active occupation, accompanied by philanthropic exertions for the benefit of his fellow-creatures, raised the character of his nationality to a high point of esteem in other countries. An account of his energetic and charitable career appeared in the Didaskalia, Frankfurt-am-Main, No. 103, April 13, 1864, and was adopted by the writer (W. P.) of an excellent notice upon the well-known publisher, in the pages of Notes and Queries, (4th S. iv., August 7 and 14, 1869). The son of a coach-builder, Rudolph Ackermann was born April 20, 1764, at Stolberg, in the Saxon Hartz. We are told 'his sympathies with the misfortunes of others were so warmly excited by the misery seen around him in the famine of 1772–73, that he frequently in later years excused the zeal which he showed on other occasions, by pictures of the distress that he experienced when he, at the age of eight years, was employed for hours daily in distributing food and money.' In 1775 his father removed to Schneeberg. Rudolph received his education in the local school till he was fifteen years old, and showed a decided predilection for literary pursuits; but his father's pecuniary position precluding the choice of a profession to more than one of his sons, he entered the paternal factory. An elder brother, Frederick, instructed Rudolph in the use of the drawing instruments, and he busied himself more willingly in the offices than in the workshops, gaining an acquaintance with details, which proved subsequently as important to his advancement as were his visits to Dresden, the towns of the Rhine, and Hueningen near Basle. He afterwards went to reside in Paris, where he became the friend of Carrossi, the most esteemed designer of equipages of his time, and Rudolph, who proved his best pupil, acquired sufficient knowledge as a practical draughtsman to push his way in the world. From Paris he proceeded to London in pursuit of fortune, and to turn his talents to account: he was delighted to find that, in the metropolis, carriage-building was one of the most successful occupations, and that the exercise of his acquirements would be handsomely rewarded; so for several years, until 1795, he was employed in furnishing the principal coachmakers with designs and models for new and improved carriages. The models of the state coach, built at the cost of nearly 7,000l., for the Lord-Lieutenant of Ireland in 1790,[19] and that for the Lord Mayor of Dublin in 1791, exhibited his taste and skill. In 1805, the preparation of the car that served as a hearse at the funeral of Lord Nelson was entrusted to him; and during the years 1818–20 the patent for a moveable axle for carriages engaged much of his attention.

It is not, however, in this connection that we have to consider Ackermann, but rather in his relation to the arts as a print-seller and publisher. On his marriage with an English lady, with commendable prudence, he became desirous of establishing a business which would, in case of his own premature decease, prove a suitable provision for his family. He commenced the print trade at 96 Strand, and soon after he secured a large apartment, 65 feet long, 30 feet wide, and 24 feet high, at 101 Strand (erected upon the courtyard of Beaufort House), which had been the drawing academy of William Shipley; it had then passed to Henry Pars, and later passed into the hands of the Radicals, and became notorious as the British Forum, when it was used by John Thelwall for his oratorical lectures. These meetings exceeding the bounds of reasonable political discussion, the Government instituted prosecutions, and the Forum ceased to exist. On the ministerial interference, October 1794, Mr. Ackermann was enabled to secure the lease of the premises, and the room was again used as a school for drawing. In 1796 the entire business was removed to 101 Strand. The drawing academy seems to have flourished; and in 1806 there were three masters engaged for figures, landscape, and architecture, and some eighty pupils were resorting to the school, when the requirements of the founder's business, as a publisher, printseller, and dealer in fancy articles, papers, medallions, and artist's materials, had so increased, that the convenience of this room as a warehouse became of more consideration than the continuance of the school.

During the revolutionary era, and when French emigrants were numerous in this country, Mr. Ackermann was one of the first to find a liberal employment for the refugees; it is said that he had seldom less than fifty nobles, priests, and ladies engaged upon screens, card-racks, flower-stands, and other ornamental work.

His inventive faculties and his disposition to take up with new ideas were marked by many improvements he introduced. At the beginning of the century he was one of the first who arrived at a method of waterproofing paper, leather, woollen stuffs, and felted fabrics, in which he obtained for some time considerable traffic; this branch was conducted in a factory he established at Chelsea for the purpose.

He further contrived an apparatus which was at least ingenious, both in theory and intention. To counteract Napoleon's endeavours, by bridling the newspapers, to keep the French nation in complete ignorance, as was actually the case, of events that were disastrous to him, Mr. Ackermann bethought himself of reviving, for the annoyance of the enemy, the use made by the French in 1794–96 of aërostation in L'Entreprenant and the Télémaque; and he contrived a simple mechanism which would, every minute, detach thirty printed placards from a packet of three thousand. Three such parcels were attached to balloons thirty-six inches in diameter, made of gold-beater's skin, and committed to the air in the summer of 1807. The success of the experiment was proved at Woolwich in the presence of a Government commission. With a southerly wind the balloons passed over Salisbury and Exeter, and several of the placards, as a proof of the practical working of the machinery, were returned to London from various parts of the country.

Mr. Ackermann was one of the first inhabitants of London who adopted the use of gas as a means of artificial light to his premises.

The establishment of lithography in England was another example of his patient and persevering expenditure of money and time in the introduction and improvement of a novelty. 'He was not content with translating Alois Senefelder's treatise in 1819, but made a journey to the residence of that inventor, in order to exchange the results of their theory and practice before producing in 1822 a Complete Course. The business relations between leading artists and Mr. Ackermann enabled him to induce them to touch the lithographic chalk; so in 1817, through Prout and others, the process became an acceptable, or rather a fashionable mode of multiplying drawings; lithography, for want of such advantages, when introduced into this country by Mr. Andréc, of Offenbach, in its original and rude state, had failed to make its way, and all its subsequent success may be attributed to Mr. Ackermann's personal emulation of the advancement it made in Munich.'

In 1813, upon receiving an authentic account from Count Schönfeld of the misery produced in Germany by Napoleon's wars, particularly in Saxony, culminating in engagements at Leipzig (during the 'five days' October 15–19, 1813), 'Mr. Ackermann temporarily abandoned the oversight of his own multifarious occupations, in order to exert all his strength in procuring aid for the sufferers. With the help of the Duke of Sussex, he formed a committee in Westminster and in the City; the first obtained a Parliamentary grant of 100,000l., and the second furnished a larger sum in private contributions. This was the occasion on which the use of Whitehall Chapel was granted for a musical performance in aid of the subscription. For two years, Mr. Ackermann undertook the task of corresponding with the German committees for distributing these sums, examining into the urgency of the appeals for help, and apportioning the fund. The members of "The Westminster Association for the further relief of the sufferers by the war in Germany," were anxious to commemorate their sense of the pains, prudence, and probity Mr. Ackermann had displayed, by presenting him with a testimonial in silver; this costly acknowledgment, together with a vote of thanks proposed to be inscribed on parchment in gold, he had the modesty to decline, begging that all thanks for his services might be comprised in a few autograph lines from the Archbishop of Canterbury.'

In his business relations we are told, 'the discretion which he exercised in choosing his subordinates, and the liberal manner in which he repaid their services, enabled him to produce several books which deserve the notice of all those who know how to appreciate the merit of these illustrated works in colour, relatively to others of similar pretension, both of that time and of the present day.