The only work of his which is preserved, is a Treatise on the Erythraean Sea; and this we possess only in the Bibliotheca of Photius, and incorporated in the history of Diodorus Siculus. The authority of Agatharcides was very high among the ancients. Strabo, Pliny, and Diodorus, always mention him with the utmost respect, and place implicit confidence in his details. Diodorus expressly states that Agatharcides and Artemidorus (who, as we have already mentioned, was merely his copyist) are the only authors who have written truth concerning Egypt and Ethiopia; and Strabo follows him in all that relates to the latter country, the countries lying to the south of Egypt, and the western coast of Arabia. In fact, for nearly 200 years, the ancient historians and geographers drew all the information they possessed respecting the portions of the world embraced in the work of Agatharcides from that work. It has been well observed, "that when Pliny speaks of the discoveries on the coast of Malabar in his own age, and adds, that the names he mentions are new, and not to be found in previous writers, we ought to consider him as speaking of all those who had followed the authority of the Macedonians, or the school of Alexandria; of which, in this branch of science, Eratosthenes and Agatharcides were the leaders." From the circumstance that Strabo appeals very frequently to the authority of Eratosthenes, in conjunction with that of Agatharcides, it has been conjectured, that the work of the latter contains all that the former knew, with the addition of his own information; and this conjecture is highly probable, considering that Agatharcides had access to the sources whence Eratosthenes drew his information; to the works of Eratosthenes themselves, which of course would be deposited in the Alexandrian library; and to all the additional works which had enriched the library from the time of Eratosthenes, as well as the additional information which the extensive commerce of Alexandria would supply.
The work of Agatharcides, therefore, having been in such estimation by the ancient historians and geographers, and the only source from which, during 200 years, they drew their information, and having been compiled by a person, who, it is probable, had better and fuller means of rendering it accurate and complete than any of his contemporaries enjoyed; it will be proper to give a pretty full abstract of the most interesting and important part of its contents.
The veracity of this author was questioned by Plutarch, from his narrating a circumstance, which, to us of the present day, is a strong confirmation of the truth and accuracy of his information. Agatharcides takes notice of the worm which is formed in the legs, and which insinuates itself there in such a manner, that it is necessary to wind it out with the utmost caution. Plutarch ridicules and rejects this story, and says it never has happened, and never will. But that such a worm exists, and that when it insinuates itself into the leg it must be drawn out with the utmost caution, lest the smallest portion of it remain, and thus produce disease, is directly and fully attested by all the travellers, and particularly by Bruce, who carried with him to the grave the marks and effects of the attack of this species of worm.
But the most curious and important portion of the work of Agatharcides on the Red Sea, relates to Abyssinia; for in this work we meet with the first genuine characteristics of this nation. He specifies particularly the gold mines wrought by the kings of Egypt on the coast of the Red Sea;--the process which they followed to procure and separate this metal;--the sufferings which the miners underwent in their operations are painted in very strong language: "The multitude of bones still found in these excavations, he says, is incredible, of wretches crushed by the falling-in of the earth, as must naturally happen in a loose and crumbling soil." He adds a circumstance, to which there are many parallel in our own country, in those mines which are supposed to have been wrought by the Romans; viz. the tools of copper found in these gold mines, supposed to have been used by the native Egyptians, prior to the conquest of Egypt by the Persians. The next particular mentioned by Agatharcides, respecting the Abyssinian coast of the Red Sea, is very conclusive, with respect to his accuracy and credibility. In Meroe, or Abyssinia, he says, they hunt elephants and hamstring them, and afterwards cut the flesh out of the animal alive: he adds, that the inhabitants are so extremely fond of the flesh of the elephant, thus procured, that when Ptolemy would have paid any price to purchase these animals alive, as he wanted them for his army, the Abyssinian hunters refused his offer, declaring that not all the wealth of Egypt would tempt them to forego their favourite and delicious repast. It is a remarkable fact, that the credit of Bruce on this topic should thus be confirmed by a writer who lived nearly 2000 years before him, of whose writings we possess only a very short treatise, and of whose life we know scarcely a single particular. It may be added, that Strabo, in a passage, in which he is apparently copying Agatharcides, mentions [Greek: Kreophagoi] and as he would scarcely particularize the fact of a native eating the flesh of animals cooked, it is to be presumed, he means raw flesh. In the same place he mentions the excisio feminarum.
Every reader of Brace's Travels in Abyssinia must remember the fly, called Tsalpsalza, an insect more formidable than the strongest or most savage wild beasts: "As soon as the buzzing of this insect is heard, the utmost alarm and trepidation prevails; the cattle forsake their food and run wildly about the plain, till at length they fall down, worn out with terror, hunger and fatigue; even the camel, elephant and rhinoceros, are not safe from the attacks of this formidable insect." This fly is described by Agatharcides in the same manner as by Bruce. The ensete tree of Bruce, the leaves of which resemble the banana, with fruit like figs, but not eatable, with a trunk esculent till it reaches its perfect growth and is full of leaves, resembles in some of its particulars a tree described by Agatharcides. This author also describes the locusts, as generally used for food; the troglodytes; the rhinoceros; the cameleopard; what he calls sphinxes, but which are represented as tame, and are supposed to be apes, distinguished from the common ape in the face being smooth and without hair. He also mentions an animal he calls crocetta, which is described as being between a wolf and a dog, and as imitating the human voice; these particulars seem to point it out as the hyena, though some suppose it to be the jackall. It deserves to be remarked, that the animals enumerated by Agatharcides as natives of Abyssinia, are all named in the same manner, as well as depicted on the celebrated Palestrine Mosaic.
In his description of the coast of the Red Sea he commences with Arsinoe, and goes down the western side as far as Ptolemais Theron; a place so called, because elephants were there hunted and taken, and are still, according to Bruce. Agatharcides adds, that the usual navigation was to this place for elephants. He notices Myos Hormos, but not Berenice; he has even mentioned the islands at the straits of Babelmandeb, and the prodigies which in his time, and much later, were supposed to lie beyond them. There is, however, one part of his work, in which he seems to indicate the curvature of the African coast to the east beyond the straits; but it is doubtful whether in this place he is speaking of the coast within or without the straits.
In his description of the coast between Myos Hormos and Ptolemais, he points out a bay, which, both from the identity of the name, and the circumstances respecting it which he narrates, undoubtedly is the Foul Bay of the moderns. Strabo, who, as we have already stated, borrows freely and frequently from Agatharcides, describes this bay as full of shoals and breakers, and exposed to violent winds; and he adds, that Berenice lies at the bottom of it. The accuracy of our author, even when he is opposed by the testimony of Bruce, is fully proved in what he relates of the coast below Foul Bay: after mentioning two mountains, which he calls the Bulls, he particularly adverts to the dangerous shoals which often proved fatal to the elephant ships on their passage to and from Ptolemais. Bruce says no such shoals exist; but, as is justly observed by Dr. Vincent; the correctness of the ancients respecting them, especially Eratosthenes, Agatharcides and Artemidorus, is fully borne out by the danger and loss to which many English ships have been exposed by reason of these very shoals.
The description of Agatharcides of this side of the coast of the Red Sea, reaches no lower down than Ptolemais; this circumstance is remarkable, since we have seen that, from the inscription found at Aduli there can be no doubt that Ptolemy Euergetes had conquered Abyssinia, and established a commerce considerably lower down than Ptolemais Theron. As, however, we have not the original, and perhaps not the entire work of Agatharcides, we cannot infer any thing, either respecting his ignorance or inattention, from this omission.
Agatharcides, having thus described this coast, returns from Ptolemais to Myos Hormos, and passing the Bay of Arsinoe, crosses to Phoenicum, in the Elanitic Gulf, and describes the coast of Arabia as far as Sabea. Almost the very first particular noticed by him in this part of his work, bears evidence to his accuracy as a geographer. He states that, at the entrance of the Elanitic Gulph there are three islands, one of which is dedicated to Isis: he describes them as, "covering several harbours on the Arabian shore. To these islands succeeds the rocky coast of Thamudeni, where, for more than 1000 stadia, there is no harbour, no roadsted in which a vessel could anchor, no bay into which she could run for shelter, no point of land which could protect her; so that those who sail alone this part of the coast are exposed to certain destruction, if they should be overtaken by a storm." Yet these islands lying in such a conspicuous situation, and of such importance to the mariner, and this coast so dangerous to him, do not appear to have been noticed in any European chart or description, till, after the lapse of twenty centuries, they were restored to geography by Mr. Irwin.
As one of our principal objects is to do justice to the accuracy of the ancient geographers, by pointing out instances of the extreme care which many of them took to obtain correct information we shall adduce one other proof of this accuracy and care in Agatharcides. This author particularly describes the sea as having a white appearance off the coast of Arabia; on this point he was well informed though the circumstance is treated as fabulous by the ancients, and even by some of the moderns; but more observant modern travellers confirm this phenomenon. It is well observed by Dr. Vincent, that we are every day lessening the bulk of the marvellous imputed to the ancients; and as our knowledge of the east increases, it is possible that the imputation will be altogether removed.