ae I 
Sercors, Defeription of one obferved Auguft 18, 1783, by Mr. Tiberius Cavallo, p. 
108. State of the weather, and fituation of the meteor, ibid. Its courfe, direction, 
and duration, p. 10g. Acquires a tail, parts into feveral {mall bodies with tails, and. 
difappears, p. 110. A rumbling noife heard after its difappearance, ibid. Con- 
jetural calculation of its diftance, altitude, courfe, &c. -p. 111. 
w—— Account of thofe of the 18th of Auguft and 4th of Oétober, 1783, by 
Alexander Aubert, Efq. p. 112. Method he tock to be able to give a perfect account 
of it, ibid. Time of its appearance, and ftate of the heavens, p. 112. Manner of 
the firft appearance of that of Auguft 18, and its diiferent changes, p. rr3. Its 
magnitude, ibid. Its duration, and length of its courfe, p. 114. Its fuppofed alti- 
tude, ibid. Appearance of that of O&. 4, ibid. Its courfe and variety of 
appearances, ibid. p. 115. Time of appearance, ibid. 
Obfervations on a remarkable one feen on the 18th of Auguft, 1783, by Wil- 
liam Cooper, D. D. Archdeacon of York, p. 116. State of the weather and atmo- 
fphere, ibid. Sulphureous vapours obferved previous to the appearance of the 
meteor, ibid. Its courfe, ibid. And altitude, p. 117. Its divifion into feveral balls 
of fire, followed by two loud explofions, ibid. 
Account of that of the 18th of Auguft, 1783, in a letter from Richard Lovell 
Edgeworth, Efq. p.118. Its time of appearance, ibid. Its fize and duration, ibid. 
Was twice eclipfed, ibid. 


=—— An Account of fome late Fiery Meteors, with Obfervations, in a Letter from 
Charles Blagden, M. D. Sec. R. S. Phyfician to the Army, p. 201. Different names of 
thefe meteors among the ancients, ib. See Comets. General appearance of thatof the 
- 18thof Augutt, 1783, p. 202. Its path defcribed, p. 203. Different fhapes in which 
it appeared owing tothe different points of view in which it was feen, p. 205. Was 
not always of the fame magnitude and figure, ibid. Different fhapes of meteors 
accounted for, p. 206. Burft, and feparated into feveral {mall bodies, ibid. Seems 
to have undergone other explofions before it left our ifland, and alfo upon the conti- 
nent, p. 207. The extin@tion of meteors by fuch explofions doubtful, ibid. The 
‘ great change in this correfponded with the period of its deviation from its courfe, 
with remarks thereon, p. 207. Obfervations on the light and colours of thefe meteors, 
ibid. Time of its greateft lufire, p. 208. And on its height, with the method of 
taking it, p. 209. Eftimations of the altitude of that of Auguft 18, by different 
perfons at different fituations, p. 211—213. Obfervations on the noifes attending and 
following thefe meteors, which, by fhaking doors, éc, is frequently miftaken for aw 
earthquake, p. 215. Its enormous ‘bulk, p. 216. Jis duration differently ftatedy 
and why, ibid. The periods of its duration are moftly ‘by guefs, and why, p.°217- 
its aftonifhing velocity, p. 218. Account.of the fire-ball which appeared OC. 4, p. 
zig. Difficulty of accurately determining the direction of its courfe, ibid. Dif 
ferent opinions about it, p. 220. Iss héighty ibid.) [ts fae, ibid, Its duration and 
r 
Renee velocitr, 
