While at Naples, I received from slaves, redeemed from the province of Constantina, accounts of magnificent ruins they had seen while traversing that country in the camp with their master the Bey. I saw the absolute necessity there was for assistance, without which it was impossible for any one man, however diligent and qualified, to do any thing but bewilder himself. All my endeavours, however, had hitherto been unsuccessful to persuade any Italian to put himself wilfully into the hands of a people constantly looked upon by them in no better light than pirates.
While I was providing myself with instruments at London, I thought of one, which, though in a very small form and imperfect state, had been of great entertainment and use to me in former travels; this is called a Camera Obscura, the idea of which I had first taken from the Spectacle de la Nature of the Abbé Vertot. But the present one was constructed upon my own principles; I intrusted the execution of the glasses to Messrs Nairne and Blunt, Mathematical instrument-makers opposite to the Exchange, whom I had usually employed upon such occasions, and with whose capacity and fidelity I had, after frequent trials, the greatest reason to be satisfied.
This, when finished, became a large and expensive instrument; but being separated into two pieces, the top and bottom, and folding compactly with hinges, was neither heavy, cumbersome, nor inconvenient, and the charge incurred by the additions and alterations was considerably more than compensated by the advantages which accrued from them. Its body was an hexagon of six-feet diameter, with a conical top; in this, as in a summer-house, the draughtsman sat unseen, and performed his drawing. There is now, I see, one carried as a show about the streets, of nearly the same dimensions, called a Delineator, made on the same principles, and seems to be an exact imitation of mine.
By means of this instrument, a person of but a moderate skill in drawing, but habituated to the effect of it, could do more work, and in a better taste, whilst executing views of ruined architecture, in one hour, than the readiest draughtsman, so unassisted, could do in seven; for, with proper care, patience, and attention, not only the elevation, and every part of it, is taken with the utmost truth and justest proportion, but the light and shade, the actual breaches as they stand, vignettes, or little ornamental shrubs, which generally hang from and adorn the projections and edges of the several members, are finely expressed, and beautiful lessons given, how to transport them with effect to any part where they appear to be wanting.
Another greater and inestimable advantage is, that all landscapes, and views of the country, which constitute the background of the picture, are real, and in the reality shew, very strikingly indeed, in such a country as Africa, abounding in picturesque scenes, how much nature is superior to the creation of the warmest genius or imagination. Momentary masses of clouds, especially the heavier ones, of stormy skies, will be fixed by two or three unstudied strokes of a pencil; and figures and dress, in the most agreeable attitudes and folds, leave traces that a very ordinary hand might speedily make his own, or, what is still better, enable him with these elements to use the assistance of the best artist he can find in every line of painting, and, by the help of these, give to each the utmost possible perfection; a practice which I have constantly preferred and followed with success.
It is true, this instrument has a fundamental defect in the laws of optics; but this is obvious, and known unavoidably to exist; and he must be a very ordinary genius indeed, and very lame, both in theory and practice, that cannot apply the necessary correction, with little trouble, and in a very short time.
I was so well pleased with the first trial of this instrument at Julia Cæsarea, now Shershell, about 60 miles from Algiers, that I commissioned a smaller one from Italy, which, though negligently and ignorantly made, did me this good service, that it enabled me to save my larger and more perfect one, in my unfortunate shipwreck at Bengazi[3], the ancient Berenice, on the shore of Cyrenaicum; and this was of infinite service to me in my journey to Palmyra.
Thus far a great part of my wants were well supplied, at least such as could be foreseen, but I still laboured under many. Besides that single province of ruined architecture, there remained several others of equal importance to the public. The natural history of the country, the manners and languages of the inhabitants, the history of the heavens, by a constant observation of, and attention to which, a useful and intelligible map of the country could be obtained, were objects of the utmost consequence.
Packing and repacking, mounting and rectifying these instruments alone, besides the attention and time necessary in using them, required what would have occupied one man, if they had been continual, which they luckily were not, and he sufficiently instructed. I therefore endeavoured to procure such a number of assistants, that should each bear his share in these several departments; not one only, but three or four if possible. I was now engaged, and part of my pride was to shew, how easy a thing it was to disappoint the idle prophecies of the ignorant, that this expedition would be spent in pleasure, without any profit to the public. I wrote to several correspondents, Mr Lumisden, Mr Strange, Mr Byers, and others in different parts of Italy, acquainting them of my situation, and begging their assistance. These gentlemen kindly used their utmost endeavours, but in vain.
It is true, Mr Chalgrin, a young French student in architecture, accepted the proposal, and sent a neat specimen of rectilineal architecture. Even this gentleman might have been of some use, but his heart failed him; he would have wished the credit of the undertaking, without the fatigues of the journey. At last Mr Lumisden, by accident, heard of a young man who was then studying architecture at Rome, a native of Bologna, whose name was Luigi Balugani. I can appeal to Mr Lumisden, now in England, as to the extent of this person’s practice and knowledge, and that he knew very little when first sent to me. In the twenty months which he staid with me at Algiers, by assiduous application to proper subjects under my instruction, he became a very considerable help to me, and was the only one that ever I made use of, or that attended me for a moment, or ever touched one representation of architecture in any part of my journey. He contracted an incurable distemper in Palestine, and died after a long sickness, soon after I entered Ethiopia, after having suffered constant ill-health from the time he left Sidon.