Shooting Stars of Nov. 14th, 1867. 235 
each of the unknown quantities, The agreement of these 
— will furnish a rough check on the accuracy of the ob- 
ions. 
f The actual length of the path described by the meteor, as 
given by the respective observers will be— 
ot.d—cot.4') 
and PS, (cot.4, —cot.a',) 
“Tf the observations agree, 9 we have also— 
=PS§ cos. 4, +88, sreing 
ri pres. aaa A! +88, an.Q. 
“From the fact: that the errors of pe sa in the direction 
of the meteor track are, probably, many times greater than _ 
those in the perpendicular direction, it on that this method 
of determining the heights and distances will be much more 
accurate than that in which no sonitak’ is a of the direc- 
tion of motion. 
“The present observations were discussed in ‘the above way 
with a single modification. The precision with which the me- 
teors appeared to radiate from the point in right ascension 
151° and declination 224° was such, that any deviation of the 
recorded tracts from a great circle passing through this point 
was presumed to be due to errors of observation. The most 
muths A are the azimuths of those points as seen from the 
oon radiant,” 
n this way he opisines the following heights (in miles of 
5280 feet) for 9 me 
No. Heigh aa Weight. Height at ending. Weight. 
2 
10s. bb. * 9 
5 “4 & 6 a7 9 
6 s2 5 $e * 9 
7 90 “ 6 a * 10 
8 104 “ A ae 8 
9 15 “ 5 58 9 
10 "9 « vi 40s il 
11 19s * 2 a * 5 
Mean, 102 103. .* is 
Prof. Newcomb adds, “It appears cae pe obec 
wes the mean height of the meteors, at first 
miles, and at a stag eres 
ohlion at an angle 
cnn a SS to great, since the meteors 
cry wen thr second, Their velocity being.44 miles per sec- 
i 
