234 Mr. Baily on the Solar Eclipse 
Moon’s true latitude - - 44 28 
— - — - — horary motion in latitude — 2 53 
By a trigonometrical calculation, I have ascertained that the 
sun rose centrally eclipsed to the inhabitants of Great Buc- 
charia in N. lat. 40° 17', and E. long. bT 33' : and the moon’s 
umbra then proceeded in a south-easterly direction across 
Thibet and China. Consequently this eclipse (which, more- 
over, was an annular one) could not possibly be central in any 
part of Asia lying to the west of the Caspian Sea : and M. 
Volney ought to have taken some steps towards ascertaining 
this fact, before he ventured to set up his own opinion in op- 
position to all preceding chronologists. 
I have thus shown, from the most correct evidence which 
the present state of astronomical science affords, that not one 
of the eclipses, mentioned by either of the authors above al- 
luded to, could possibly be that which is recorded in so singular 
. a manner by Herodotus. In order, however, that I might 
not leave the subject in the same degree of doubt in which I 
found it, I have taken the pains to calculate all the solar eclipses 
that were likely to have been visible in Asia Minor, from the 
year 650 B. C. to 380 B. C. : but, out of this period of seventy 
years, I have found only one that was central in, or near, any 
part of that peninsula. 
The eclipse here alluded to, happened September 30th, bio 
B. C. The ecliptic conjunction took place at 8 h 12' 31'' in the 
morning, mean time at Greenwich, or 8 h 21' 41" apparent time: 
and the elements were as follow 7 : 
