SCIENTIFIC SUMMARY. 
193 
Harcourtii and elegans, which could only he considered of a very unsatisfac- 
tory nature. In a cone in Mr. E. W. Binney’s possession in every respect 
similar to the late Dr. Eobert Brown’s celebrated specimen of Tr^jlosporitej 
but having the column in a more complete state of preservation, there is 
most conclusive evidence from internal structure that the Triplosporite is the 
fruit of Lepidodendron Harcourtii, the pith vascular cylinder, vascular bundles 
communicating with the leaves or scales, and the outer cylinder being the 
same in the cone as in the stem, thus justifying Mr. Carruthers’ opinion that 
the cone was a Lepidostrohus. The large spores found in a Lepidostrohus 
described by Dr. Hooker in the second volume of the Memoirs of the 
Geological Survey, as well as similar specimens found by the author in coal 
at "Wigan, and described in the Quarterly Journal of the Geological Society 
for May 1849, are most probably both macrospores of the fructification of 
Lepidodendron, and have come from the lower portion of a cone, whilst Dr. 
Browne’s were from the upper part. The same may be said of Professor 
Morris’s specimen belonging to Mr. Prestwich, from Colebrook Dale, 
described and figured in vol. v. of the Transactions of the Geological Society, 
published in 1840, which clearly came from the lower portion of a cone 
of Lepidodendron. In the new genus Flemingites, described and figured by 
Mr. Carruthers in vol. ii. of the Geological Magazine for October 1865, there 
are two kinds of sporangia ; those in the upper part of this long and slender 
cone being something like the sporangia of the Lepidodendron, Wt arranged 
in whorls and probably filled with microspores, whilst the lowest scales 
supported sporangia containing macrospores. This Mr. Binney gathered 
from much more perfect specimens than those which Mr. Carruthers had to 
work upon. Most certainly the little flattened discs which he described as 
sporangia are found on scales at the base of the cone, and not in the middle 
or upper portions of it, as many of the other specimens clearly prove. 
When Professor Brongniart’s paper is published and drawings of his 
specimens are given we shall, in Mr. Binney’s opinion, be better able to 
understand the relation of the genus Flemingites to Lepidodendron. — Paper 
read by Mr. Binney before the Manchester Literary and Philosophical Society. 
The Red Chalk of Hunstanton. — In a paper before the Geological Society 
the Eev. T. Wiltshire described the section exposed in Hunstanton Cliff as 
showing: — 1. White chalk with fragments of Inocerami. 2. White chalk 
with having its base undulated and the cavities fiUed 
up with a thin bright-red argillaceous layer, resting upon (3) the red chalk, 
which is divisible into three sections — a, hard, containing Avicula gryphes- 
oides and Siphonia paradoxica, and with fragments of Inocerami at its base ; 
h, hard, rich in Belemnites ", c, incoherent at its base, rich in Terehratuloe. 
4. Carstone, a yellow, coarse, sandy deposit, resting on a bed of clay, con- 
taining no fossils in its upper part, but with a band of nodules containing 
Ammonites Deshayesit and other species about thirty feet down, together 
with ironstone nodules like those of the lower greensand of the Isle of 
Wight, and bearing impressions of fossils which correlate the lower part of 
the carstone with the base of the English lower greensand. The author 
gave a list of these fossils, and also of those of the red chalk, the latter 
amounting to sixty-one, and presenting a mixture of forms belonging to the 
lower chalk, upper greensand, and gault. On comparison with the gault 
