A circumstance now happened which forms the leading feature in the singular history of Bruce's life. During the few days which he had spent at Ferrol, in Gallicia, a report was circulated that the court of Spain was about to engage in war with Great Britain. On considering the means of defence which the place possessed, it appeared to Bruce that an attack on it by a British squadron could not fail of being successful, and that, in case of a war with Spain, it was the point at which that country ought to be invaded.

On his return to England, although perfectly unknown to the public, our travelling partner in the wine-trade boldly resolved to submit his project to Mr. Pitt. He accordingly fully explained to his friend Mr. Wood, then under secretary of state, the facts on which he had formed his opinion; and, unwilling to appear as one of those who valorously invent expeditions of danger which they most prudently call upon others to carry into execution, he concluded by saying, that, in case a war with Spain should be resolved on by the ministry, if the king would intrust him in a single boat with a pair of colours, he would plant them with his own hand on the beach at Ferrol.

Bruce was now sent for by Mr. Pitt, with whom he had the honour of conversing on the subject; and, at the minister's suggestion, he drew up a memorandum of his project. He was shortly after informed by Mr. Wood that Mr. Pitt intended to employ him on a particular service; that he might, however, go down for a few weeks to his own country to settle his affairs, but that he must not fail to be ready upon a call. "Nothing could be more flattering," says Bruce, "than such an offer; to be thought worthy, when so young, of any employment by Mr. Pitt, was doubly a preferment." No time was lost; but, just after Bruce had received orders to return to London, Mr. Pitt went to Bath and resigned his office.

This disappointment was the more sensibly felt, as it was the first Bruce had met with in public life. However, shortly after Mr. Pitt's resignation, he was informed by Mr. Wood that the memorandum he had addressed to Mr. Pitt had been laid before the king, and had been strongly recommended by Lord Halifax. The Earl of Egremont and Mr. Grenville had now several meetings with Bruce, to concert an expedition against Ferrol, the execution of which was to be intrusted to Lord Howe; but, at the earnest request of the Portuguese ambassador, the project was abandoned, and, on the death of Lord Egremont, Bruce's expectations again vanished.

Disappointed in his offer of public service, he retired to his estate in Scotland; but he was shortly again called to London by Lord Halifax, who, appreciating Bruce's character, nobly observed to him, that, being in the vigour of life, at the height of his reading, health, and activity, it would be ignoble were he to turn peasant, and bury himself in obscurity and idleness, while the coast of Barbary, which might be said to be just at our door, had been but partially explored by Dr. Shaw, who had not pretended to give to the public any details of the magnificent remains of ruined architecture which he, as well as Sanson, had vouched to have seen in great abundance over the whole of that country. Lord Halifax therefore expressed a wish that Bruce should be the first, in the reign just now commencing, to set an example of making large additions to the royal collection; he pledged himself to be his supporter and patron, and to make good to him the promises which he had received from former ministers. The discovery of the source of the Nile was also a subject of their conversation; and although it was mentioned as a thing to be accomplished only by a more experienced traveller, yet Bruce always declared it was at that instant of his life that his heart suggested to him "that this great discovery should either," as he says, "be achieved by me, or remain, as it had done for the last two thousand years, a defiance to all travellers, and an opprobrium to geography."

Fortune seemed to favour his scheme. Mr. Aspinall, having been very cruelly and ignominiously treated by the Dey of Algiers, had resigned his consulship, and Mr. Ford, a merchant, the dey's acquaintance, had been appointed in his stead: but, he dying a few days afterward, the consulship again became vacant, and Lord Halifax pressed Bruce to accept it, as being convenient for aiding him in the proposed expedition. "This favourable event," says Bruce, "finally determined me. I had all my life applied unweariedly, perhaps with more love than talent, to drawing, the practice of mathematics, and especially that part necessary to astronomy. The transit of Venus was at hand. It was certainly known that it would be visible once at Algiers, and there was great reason to expect that it might be twice. I had furnished myself with a large apparatus of instruments, the completest of their kind, for the observation. In the choice of these I had been assisted by my friend Admiral Campbell, and Mr. Russell, secretary to the Turkish Company. Every other necessary had been provided in proportion. It was a pleasure now to know that it was not from a rock or a wood, but from my own house at Algiers, I could deliberately take measures to place myself in the list of men of science of all nations who were then preparing for the same scientific attempt."

On his appointment to be consul at Algiers, Bruce had the honour of being presented to his majesty George III., who graciously requested him to make accurate drawings of the ruins of ancient architecture which he should discover in the course of his travels; and to give Bruce a liberal opportunity of improving his taste, and to qualify him for collecting with greater ability the remains of antiquity in Africa (the southern region of the Roman empire), it was arranged that he should travel through France into Italy, and remain there for some months, under the pretext of waiting for despatches which were to be there forwarded to him.

Delighted with prospects so congenial to his disposition, being now thirty-two years of age, he sailed from England in June, 1762; and, though some objections had been made as to particular passports solicited by the British government from the French secretary of state, M. de Choiseul waived such exceptions with regard to Bruce, and politely assured him, in a letter accompanying his passport, that those difficulties did not in any shape regard him, but that he was perfectly at liberty to pass through, or to remain in France, with those who might accompany him, without limiting their number, as short or as long a time as should be agreeable to him.

Having arrived at Rome (August, 1762), Bruce proceeded to Naples, and there, for some months, awaited his majesty's farther commands. He afterward went to Florence, where he remained most studiously occupied for a considerable time.

It would be tedious to enter into a detail of the antiquities, paintings, and other curiosities which Bruce observed in the course of his journey, as they have been visited by thousands of Englishmen, and have been minutely described by travellers of every possible description. It is only necessary to state that Bruce made very minute memoranda respecting every remarkable place or object which he visited;[3] that his catalogue of paintings is very extensive; and that his notes indicate the variety of his knowledge, the correctness of his judgment, and the exalted feelings with which he visited those faded scenes of Roman glory, which, like Byron's "Greece," may be justly compared to a corpse from which a noble spirit has departed.