KIDSTON : THE FLORA OF THE CARBONIFEROUS PERIOD. 223 
Plate XXXIY. 
Fig. 1. Cnhimitina Gopperti Ett. sp. Woolley Colliery, Darton, 
near Barnsley. Middle Coal Measures [1199]. Natural 
size. Collected by Mr. W. Hemingway. At a and h 
are seen two w^horls of branch scars. 
Fig. 2. Calamite from " Coal Ball," Hard Bed, Halifax. Lower 
Coal Measures. Specimen in the collection of the 
late Mr. Spencej, Halifax. a. Cast of pith cavity. 
h b. Vascular axis with structure preserv^ed. Natural 
size. 
Fig. 3. Equisetites Heminyicayi Kidston. Monckton Main 
Colliery, near Barnsley. Middle Coal Measures [1678]. 
Natural size. Collected by Mr. W. Hemingway. 
Fig. 4. Cone of Equisetum hyemale, natural size, for comparison 
with Equisetites Hemingwayi. 
Fig. 5. FaUtostachya pedunculata Williamson. Blairpoint, Dysart, 
Fife. Lower Coal Measures [1997]. Natural size. 
