466 TRANS. ST. LOUIS ACAD. SCIENCE. 



according to our correction, the former really touched the latitude 

 of Constantinople. Hence it is evident that three consecutive 

 eclipses, observed in Constantinople, have been confounded with 

 each other: the first was that of a.d. '^45, June i6th, ih., on a 

 Sunday ; the following happened a.d. 346, June 6th, two hours 

 after sunrise, on a Friday ; and the third, a.d. 347, Oct. 20th, 3h. 

 p.m., on a Tuesday. The first was the total one witnessed by 

 Theophanes and Cedrenus. 



60. O +348, Oct. 8, 2oh., 15 5° 17' E., Constantinople, curve 

 52°, 23°, 1-2°. Hieronymus-, as Petavius found in some manu- 

 scripts, mentions an eclipse (solis facta defectio) observed in the 

 1 2th year of Constantius, and Ol. 282, i. The latter points to 

 a.d. 347 (No. 59), the former to a.d. 348. The same eclipse 

 Cassiodor (p. 220, ed. Rom.) refers to the consuls Fl. Philippus 

 and Fl. Salius (his coss. solis facta defectio j, and to the 12th year 

 of Constantius. The obscur.Uion amounted, according to Peta- 

 vius, to 8 inches in Constantinople ; but it must have been small- 

 er, the y lying 2° 33' nearer to the sun. 



61. O +360, Aug. 27th, i6h., U 3° W., Mesopotamia, curve 

 3.4-37°, 26°, 21°. Amm.Marcellinus (xx. 3, p. 203 Wagn.) says: 

 " eodem tempore per Eoos tractus ccelum subtectum caligine cer- 

 nebatur obscura, et a primo aurorje exortu ad usque meridiem 

 intermitabant jugiter stellae — primo attenuatum in lunae cornicu- 

 lantis effigiem, deinde in speciem semestrem, postea in integrum 

 restitutum." This eclipse Ammian refers to the coss. Constantius 

 X. and Julianus III., a.d. 360. According to Petavius, 1 1 inches 

 of the sun's disc were covered in Mesopotamia, but, according to 

 a careful computation of the same eclipse, performed by means of 

 Damoiseau's Tables and Airy's corrections of the latter (Zech's 

 Preischriften iiber die wichtigeren Finsternisse der Griechen und 

 Romer, 1855), the eclipse was over prior to sunrise in Mesopota- 

 mia. Both contradictions are removed by our Table, p. 429, for 

 the ft lay 2° 32' more west of the sun, and the conjunction hap- 

 pened nearly ih. 32m. later. The report that the eclipse lasted 

 six hours, means that the total shadow of the moon traversed dif- 

 ferent places of Asia successively. (See p. 448.) 



62. O +-364, June 16, ih., ft 6° W., Alexandria, Egypt ; curve 

 *, 60° (noon), 38°. Theon (Can. L vi. p. 277 & 282 ed. Bas., p. 

 161 Hal.) testifies that on the 23d day of Thoth (June 16), yEr. 



