13 
PHYSICAL AND MATHEMATICAL SECTION. 
October 11th, 1866. 
Joseph Baxendell, F.R.A.S., Vice-President of the Section, 
in the Chair. 
“ Observation of the Eclipse of the Sun, October 8th, 
1866, at Mr, Worthington’s Observatory, Orumpsall,” by 
Joseph Baxendell, F.R.A.S. 
The first contact was observed at 4h. 20m. 6*0s. Green- 
wich mean time. Owing to the low altitude of the Sun, its 
limb was very tremulous, but the error arising from this 
cause was estimated not to exceed one second. The telescope 
used was the equatorially-mounted achromatic, of 5 inches 
aperture and 70 inches focal length, with a positive eyepiece 
magnifying 68 times. The position of the observatory is, 
latitude 53° 30' dO’O" N., longitude 8' 56*1 6" W. 
“ Results of a Comparison of the Magnitudes of the Bedford 
Catalogue with those of Sir John Herschel,” by Geoege 
Knott, F.R.A.S. Communicated by Mr. Baxendell. 
Some few months ago I had the honour of submitting to 
the Physical and Mathematical Section of the Manchester 
Literary and Philosophical Society the results of a comparison 
of the Star Magnitudes of the Bedford Catalogue with those 
of the Mensurce Micrometricoe and the Bonner Sternverzeich- 
niss. In the following paper, which may be regarded as 
supplemental to that just referred to, I propose giving the 
results of a similar comparison of the magnitude scale of the 
Bedford Catalogue with that of Sir John Herschel. 
The Stars for comparison are taken from Sir John Her- 
