Vol. XII.] [I'aut IV. 
PROCEEDINGS 
OF THE 
YORKSHIRE 
GEOLOGICAL AND POLYTECHNIC SOCIETY. 
Edited by JAMES W. DAVIS, F.S.A., F.G.S., &c. 
1893. 
CALAMOSTACHYS BINNEYANA, SCIIIMP. BY THOMAS HICK, B.A., B.SC, 
ASSISTANT LECTURER IN BOTANY, OWENS COLLEGE, MANCHESTER. 
Our knowledge of the structure and characteristics of the spori- 
ferous spike or strobilus now known as Galamostachys Binneyana is 
almost entirely based upon the descriptions and figures published by 
Carruthers,* Binney,f and Williamson. % By Carruthers it was 
named Volkmannia Binneyi, by Binney Calamodendron commune, 
and by Schimper Galamostachys Binneyana, a name which lias been 
generally adopted by later writers. 
The specimens described by these authors being in no case 
perfect, it is not surprising that on some important points our know- 
ledge of the fossil is anything but complete, while it is well-known 
that as regards its affinities Carruthers and Williamson came to 
widely different conclusions. 
Under these circumstances I propose to review its structure 
and affinities in the light of a series of preparations lately placed in 
my hands by W. Cash, Esq., of Halifax. They consist of a number 
* Journal of Botany. December, 1867. 
f Observations on the Structure of Fossil Plants found in Carboniferous 
Strata, Part I. , Calamites and Calamodendron. Palasontographical Society, 
1868. 
% On the Organisation of the Fossil Plants of the Coal Measures. Philo- 
sophical Transactions, 1871-1891. 
