(F-26388) 
XI11.—On the Carboniferous Flora of Berwickshire. Part L Stenomyelon Tuedianum 
Kidston. By R. Kidston, LL.D., F.R.S., and D. T. Gwynne-Vaughan, M.A., 
' Professor of Botany, Queen’s University, Belfast. (Plates I-IV.) 
(MS. received January 8, 1912. Read January 8, 1912. Issued separately April 13, 1912.) 
Inrropuction. By R. Kipston. 
My first knowledge of Stenomyelon Tuedianum was derived from a microscopical 
preparation in the collection of the late Mr C. W. Pracn, A.L.S., which, through the 
_ kindness of his son, Dr B. N. Pracn, F.R.S., subsequently came into my possession.* 
The specimen was labelled as having been found “‘ near Berwick.” 
During the investigation of the fossil flora of Berwickshire, in company with Mr 
A. Macconocuie of the Scottish Geological Survey, a special effort was made to secure 
additional specimens of this plant, as the original material, as far as known to me, 
was quite inadequate for a satisfactory description of the species. It was ascertained 
that the specimen in Mr Pracu’s collection had been received from the late Mr Apam 
Marueson, Jedburgh, a geologist who took much interest in the fossils of his neighbour- 
hood, and whom I believed to be the author of an anonymous pamphlet—apparently 
a reprint from a local newspaper—describing some fossil stems found at Norham 
Bridge. A perusal of this paper led me to infer that his specimen of the fossil, here 
described as Stenomyelon Tuedianum, had also come from the same locality, an opinion 
which subsequent events showed to be correct. 
The matrix containmg Mr Marueson’s fossil was an impure fine clay, apparently 
with a fair proportion of iron, and one showing features which were possible of recognition 
in the field ; but though a careful search for a similar bed was made in the neighbourhood 
of Norham Bridge, no trace of such could be found wm stu. Subsequently, in 1901, 
‘we discovered some small blocks of the desired rock lying on the side of the road 
near the north end of Norham Bridge. It was ascertained that the material came 
from a cutting made in the road while putting in a drain some time before; the 
surface of the road in the neighbourhood of the drain was therefore carefully examined, 
and in a small block which had been used for refilling the cutting the specimen was 
discovered which has enabled us to give a detailed description of the species. 
We are also indebted to the original material for additional points of interest. 
Subsequently, in 1903, Dr D. H. Scort, F.R.S., informed me that some sections of 
Stenomyelon had been presented in 1859 to the Botanical Museum, Royal Botanic 
Gardens, Edinburgh, by Mr Apam Martusson; and from a copy of a letter referring to 
these specimens which has been kindly forwarded to me by Dr Scort, who had received 
* Slide No. 2105. 
TRANS. ROY. SOC, EDIN., VOL. XLVIII. PART ITI. (NO. 13). 40 
