Chemistry and Physics. 121 
In the. month of April the author considered the axis of the zodiacal 
light to be slightly north of the ecliptic, the northern side of the cone 
much broader than the cone seen in ebruary. ‘T'wo observations, 
those of March 3 and April 10, were particularized as indicating that 
by Mr, Lowe, at Nottingham. They are described by the author not 
to be of the nature of pulsations in the usual acceptation of the term, 
but to consist of alternate brightenings and dimmings of the entire 
mass of light such as might be produced by the approach and recess 
of a luminous bod 
ND a correct image of that object, consisting ere omniog from 
Prec ly the same parts of itas an eye wou 
“ural images as there were such parts; and the photographic pic- 
. re which embraces and confounds into one hideous mass all these, 
of enol which by-itself would be correct, must in the very nature 
' things give a most confused and displeasing representation of the 
ee i Sir David illustrated and proved these assertions by a diagram 
Vol. XV, No, 48.—Jan., 1853. 16 
