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appeared in the neighbourhood of Pelusium, between the Serbonian bog and the eastern channel of the Nile. From thence, tracing as it were a double path, it spread to the East, over Syria, Persia, and the Indies, and penetrated to the West, along the coast of Africa, and over the continent of Europe. In the spring of the second year, Constantinople, during three or four months, was visited by the pestilence; and Procopius, who observed its progress and symptoms with the eyes of a physician,^[1] has emulated the skill and diligence of Thucydides in the description of the plague of Athens.^[2] The infection was sometimes announced by the visions of a distempered fancy, and the victim despaired as soon as he had heard the menace and felt the stroke of an invisible spectre. But the greater number, in their beds, in the streets, in their usual occupation, were surprised by a slight fever; so slight, indeed, that neither the pulse nor the colour of the patient gave any signs of the approaching danger. The same, the next, or the succeeding day, it was declared by the swelling of the glands, particularly those of the groin, of the arm-pits, and under the ear; and, when these buboes or tumours were opened, they were found to contain a coal, or black substance, of the size of a lentil. If they came to a just swelling and suppuration, the patient was saved by this kind and natural discharge of the morbid humour. But, if they continued hard and dry, a morti-

was probably carried to Constantinople, for Theophanes says that it broke out in October, A. D. 541. But it did not begin to rage until the following year, A.D. 542 — the year of the 3rd invasion of Chosroes, Procop. B. P. 2, 20; Evagrius, 4, 29; Victor Tonn. ad ann. John Malal. (ed. Bonn, p. 482) seems to put it in the 5th Indict. = A.D. 541-2; his notice comes between a mention of the 5th Ind. and a mention of the 7th, he does not mention the 6th. See V. Seibel, Die grosse Pest zur Zeit Justinians, 1857. The statement in the text that it penetrated into the west "along the coast of Africa" can hardly be correct. It must have reached Africa from Constantinople. The desert west of the Cyrenaica was an effectual barrier against the affection, and Corippus expressly states that the Moors escaped (Joh., 2, 388, gentes non laesit amaras Martis amica lues). The malady spread in Africa in A.D. 543. See Partsch, Proœm. ad Corippum, p. xvi. xvii.]

1. Dr. Freind (Hist. Medicin. in Opp. p. 416-420, Lond. 1733) is satisfied that Procopius must have studied physic, from his knowledge and use of the technical words. Yet many words that are now scientific were common and popular in the Greek idiom.
2. See Thucydides, l. ii. c. 47-54, p. 127-133, edit. Duker, and the poetical description of the same plague by Lucretius (l. vi. 1136-1284). I was indebted to Dr. Hunter for an elaborate commentary on this part of Thucydides, a quarto of 600 pages (Venet. 1603, apud Juntas), which was pronounced in St. Mark's library, by Fabius Paullinus Utinensis, a physician and philosopher. [Cp. the Appendix to Jowett's Notes on Thucydides, Bk. ii. (vol. ii. p. 141 sqq.), where this account of Gibbon and Boccaccio's narrative of the plague in 1348 are set beside the description of Thucydides.]