no small part of the correspondence between these officers, for some time previous to our arrival on the coast.  We took, besides, many letters, sent from persons entrusted by the Spanish government, to their friends and correspondents, which were frequently filled with narrations of public business, and sometimes contained undisguised animadversions on the views and conduct of their superiors.  From these materials those accounts of the Spanish affairs ore drawn, which may appear, at first sight, the most exceptionable.  In particular, the history of the various casualties which befel Pizarro’s squadron is, for the most part, composed from intercepted letters; though, indeed, the relation of the insurrection of Orellana and his followers is founded on rather a less disputable authority; for it was taken from the mouths of an English gentleman then on board Pizarro, who often conversed with Pizarro; and it was, upon enquiry, confirmed in its principal circumstances by others who were in the ship at the same time:  so that the fact, however extraordinary, is, I conceive, not to be contested.

And, on this occasion, I cannot but mention, that, though I have endeavoured with my utmost care to adhere strictly to truth, in every article of the ensuing narration, yet I am apprehensive that, in so complicated a work, some oversights must have been committed, by the inattention to which, at all times, all mankind are liable.  However, I am conscious, as yet, of none but literal and insignificant mistakes; and if there are others more considerable, which have escaped me, I flatter myself they are not of moment enough to affect any material transaction; and therefore I hope they may justly claim the reader’s indulgence.

After this general account of the ensuing work, it might be expected perhaps, that I should proceed to the work itself; but I cannot finish this introduction without adding a few reflections on a matter very nearly connected with the present subject, and, as I conceive, neither destitute of utility nor unworthy the attention of the public:  I mean the animating my countrymen, both in their public and private stations, to the encouragement of all kinds of geographical and nautical observations, and of every species of mechanical and commercial information.  It is by a settled attachment to these seemingly minute particulars, that our ambitious neighbours have established some part of that power with which we are now struggling:  and as we have the means in our hands of pursuing these subjects more effectually than they can, it would be a dishonour to us longer to neglect so easy and beneficial a practice.  For, as we have a navy much more numerous than theirs, great part of which is always employed in very distant stations, either in the protection of our colonies and commerce, or in assisting our allies against the common enemy, this gives us frequent opportunities of furnishing ourselves with such kind of materials as are here recommended,