82 
siphuncle and form of the septa: IT should have referred 
it to this latter species, although it be of inferior size. I 
have been induced by the magnificence of their appear- 
ance to give full sized figures of a series of specimens, 
from the largest I possess to the smallest: I lately 
received them from that very liberal promoter of science 
and the useful arts, Charles Stewart Menteith, Esq. 
from his Lime-works at Closeburn, in Dumfrieshire. 
Mr. Farey (the gentleman to whom I have been indebted 
for the Stratigraphical Indexes) having been consulted 
by Mr. Menteith in 1815, respecting the probability of 
discovering coal on his estate, has furnished me with the 
following particulars : 
“The Closeburn Lime Quarry is situated about seven- 
eicghths of a mile S.3.K. of the Church, and about half 
a mile E.N.E. from the well known inn on the Toll 
Road to Sanguhar, called Brown Hill, in rather low 
gyound, about one eighth of a mile distant to the S.W. 
from the commencement of a considerable Basaltic Hill, 
called Barn Muir. The sinking of the quarry and a 
boring near it, were stated to me by Mr. John Waugh, 
the resident agent, as follows: 
“ Ist. Sandy Gravel 21 feet. 
“ Qnd. Clayey Gravel or Till, intercepting the land 
springs from No. 1. seven feet and a half. 
“3rd. Slaty beds, or hard laminated Clay. 
“Ath. Clay; the lower part of which in drying se- 
parates into small pieces. 
“ 5th. Doggers ; a hard and bad Limestone, in three 
beds, two feet. 
“6th. Upper rock of Limestone ; of a dun-red colour, 
and somewhat granular, with dark red joints, separating 
the ports or blocks of stone. 
“7th. Lower Doggers; a very bad Limestone, used 
for walling; it includes some clayey and shattery way- 
boards, nine feet. 
