105 
Ordinary Meeting, February 7th, 1871. 
E. W. Binney, F.R.S., F.G.S., President, in the Chair. 
“On the Organisation of an Undescribed Yerticillate 
Strobilus from the Lower Coal Measures of Lancashire,” by 
Professor W. C. Williamson, F.R.S., &c. 
The author directed attention to the existing state of know- 
ledge in reference to internal structure of the organisms 
long known as Volkmannke, pointing out the publication, 
1st, of one form, by Mr. Binney, subsequently described also 
by Mr. Carruthers from Mr. Binney’s sections, and 2nd, of a 
second type published by himself. He then proceeded to 
describe a third type from a specimen discovered in the 
lower coal measures by Mr. J. Butter worth. This is an 
oblong strobilus of a lax and slender habit. Its central 
axis consisted of a bundle of vessels the transverse section 
of which was a triangle with concave sides and truncated 
angles. This was surrounded by a broad cylinder of delicate 
cellular tissue, which again was enveloped by an outer 
cylinder of prosenchymatous cellular tissue of a dense 
character. At each node this latter tissue extended out- 
wards as a thick continuous disk, which, at a little distance 
from the central axis, became subdivided into a peripheral 
circle of stiff prosenchymatous bracts, the flattened extremi- 
ties of which stretched upwards and outwards. The upper 
Proceedings — Lit, & Phil. Soo. — Vol. X. — No, 10. — Session 1870-71. 
