146 On the Meteors of 13th November, 1833. 
But applying to the same figure, the elements as deduced from the 
observations made at New Haven and Worthington, the calculation 
will be as follows. 
BED—T1° 26": Sin 1°30’ - - 8.417919 
ADC= 1° 30’ Sin 71° 26’ =" = 9.976787" 
JN Cees VSB al 85.1 “= “= '1:929930 
11.906717 
3082 - - 3.488798 
From this calculation we obtain for the distance from New Haver 
to the place of the Meteors, three thousand eighty-two miles, a result 
nearly twice as great as the former. I know of no way of account- 
ing for this difference, but to impute it to want of exactness in obser- 
vations made loosely with the naked eye, instead of being measured 
by instruments. 
Referring the same estimates to the center of the earth, we obtain 
the following results. 
AB=1657 AC=3956.".AB+AC=5613 3.749195 
AB—AC=2299 3.361539 
tan 10°39’ 9.274269 
BAC=180° —21° 18’=158° 42’ —————- 
4ABC+4BCA= 10° 39’ 12.635808 
tan 4925’ 8.886613 
ABC=15° 4’ 
ACB= 6° 14’ 
Sim BS i AY aie - - 9.414878 
Sim TO CBG i - - 9.560207 
3956 sel ais - 3.597256 
13.157463 
BC=5528 - - - 3.742585 
DB=1572 
Hence, according to the observations made at Emmittsburg and 
New Haven, the perpendicular height, above the surface of the earth, 
of the place whence the meteors emanated, was fifteen hundred and 
seventy-two miles. But from the observations made at Worthington 
and New Haven, the perpendicular height, estimated in the same 
way, was 2955 miles. 
We have at present no more satisfactory way of obtaining the per- 
pendicular height of the place in question, than to take the mean of 
