2 Mr. BabingTON on the Island of Salsette . 
The general appearance of each cluster, viewing it from the base, 
is that of a bundle of reeds, the pipes of an organ, or a section of a 
honey-comb ; the height of the most lofty columns is about fifty feet, 
and although in some instances horizontal fractures are discovered, 
they appear to be the effect of accident, as the greater number of 
pillars are single shafts. 
On ascending the hill it is perceived that there are other clusters 
of columns rising in succession behind the principal one, each being 
elevated about eight or ten feet above the cluster immediately be- 
low it. 
The diameter of each column in the three clusters above described, 
is about twenty inches, but there are columns in the neighbourhood 
of more than double that size. 
The number of the sides of each column varies from four to 
seven, and in one instance the four exposed sides of a column, led 
to a conclusion that the whole figure was an octagon. The figures 
which occur most frequently are irregular pentagons and hexagons. 
When the figure has only four sides, the sides are nearly of an 
equal size ; the same observation applies also, though not so uni* 
versally, to the pentagons, but the hexagons and seven sided figures 
have frequently one or more sides not exceeding two inches in 
diameter. 
Almost all the columns face the east, perhaps a little northerly, 
and incline to the south-west. The angle of inclination is extremely 
variable, but the three main clusters lie nearly in the same parallel, 
and incline about twenty degrees from the perpendicular. The in- 
clination of many of the surrounding columns is as great as sixty or 
seventy degrees. 
The rock of which these columns are composed, is internally of a 
light bluish grey colour, its exposed surface is of a dark reddish 
