264 Mr. J. Glaisher's additional Observatiofis on 



62° W. of N. Mr. Linthwaite was riding in the direction of 

 E. and W., and did not see its first appearance, but its change 

 of azimuth at this moment was small, and the interval of time 

 was so short, that the estimated azimuth (nearly S.) must 

 be near the truth. These lines intersect each other very 

 nearly over a spot at about thirteen miles east of Montgomery. 

 This meteor, therefore, seems to have been vertical at this 

 spot, or nearly so, and to have been first seen there in a state 

 of ignition. 



2. Determination of the Path of the Meteor. 



From this spot it proceeded over Shropshire and Warwick- 

 shire, including the southern boundary of Staffordshire, from 

 thence over Northamptonshire to Bedfordshire. In its course 

 it passed the zenith of Stourbridge nearly, a little south of 

 Coventry, north of Warwick, and south of Northampton, 

 Rugby and Bedford. 



3. Determination of the spot over nsohich the Meteor was vertical 



at its explosion. 



The observations available for this determination are the 

 following : — ^ 



At Brighton its azimuth was 5 W. of N. 



At Greenwich ... 19 W. of N. 



At Deddington ... 82 E. of N. 



At Rugby ... 68E. ofS. 



At Castle Donnington ... 40 E. of S.* 

 The intersection of these lines is at a spot very near to 

 Biggleswade, and I have finally decided that the most pro- 

 bable place over which the meteor was at its explosion is si- 

 tuated at about l^ mile from Biggleswade, and bearing 18° 

 S. of E. 



4. Determination of the distance of the Meteor from the earth 



on its first appearance. 

 The data for this determination are the following : — 

 At Yeovil its altitude was 36°, as measured by a theodolite. 

 At Chester its estimated altitude at the time of observation 

 was 60°, after the lapse of a month it was determined by 

 measurement to be Bh° 36'. The distance from Yeovil is 117 

 miles, and from Chester is 46| miles. Hence, from the 

 observation at Yeovil, the distance from the earth was 88 



* In account XXII. at Hull it is stated that the meteor exploded about 

 15° W. of the meridian. As the right ascension of 15 Argus is ^^ 1™, and 

 the sidereal time was 8'> 9"", the star had passed the meridian of Hull when 

 the observation was made by a few minutes only, therefore its azimuth was 

 very small. 



