35 YORKSHIRE NATURALISTS UNION. 



near Rotherham (Sheffield Museum). Elsecar, near 



Barnsley (Durnford). 

 Hor. — Milton Field or Half Yard Coal. Loc. — Monkey 



Island Pit, Wath, near Barnsley (Geldcr). 

 Hor. — Beesion Coal. Loc. — Near Leeds (Holgate). 

 Hor.— White Rake Bed. Loc. — Low Moor, near Bradford 



(Davis). 

 Hor.? — Logs. — Clifton, near Halifax. Dewsbury Moor. 



Millstone Grit. 



Locs. — Cold Edge, Halifax (Cash). Holywell, near Halifax 

 (Cash). 



Note. — Very common and widely distributed. 



Alethopteris decurrens Artis sp. 



Filicites decurrens Artis, Antedil. Phyt., pi. xxi. 



Pecopteris heterophylla L. &: H., Fossil Flora, vol. i, pi. xxxviii. 



Pecopteris mantelli Brongt, Hist. d. veget. foss., p. 278, pi. 



Ixxxiii, figs. 3, 4 ; L. & H., Fossil Flora, vol. ii, pi. cxlv. 

 Alethopteris gracillima Boulay, Terr, houil. du nord de la 



France, p. 33, pi. ii, fig. 5. 

 Alethopteris decurrens Zeiller, Flore foss. d. bassin, houil. d. 



Valen., p. 221, pi. xxxiv, figs. 2, 3; pi. xxxv, fig. i ; pi. 



xxxvi, figs. 3, 4. 



Middle Coal Measures. 



Hor. — Stanley Main Coal. Loc, — Wakefield (Hemingway). 



Hor. — Barnsley Thick Coal. Locs. — East Gawber Colliery, 

 near Barnsley (Hemingway). North Gawber Colliery, 

 near Barnsley (Hemingway). Monckton Main Colliery, 

 near Barnsley (Hemingway). Hemsworth Colliery, near 

 Barnsley (Hemingway). Woolley Colliery, Darton, near 

 Barnsley (Hemingway). Fence Colliery, Treeton, near 

 Rotherham (Sheffield Museum). 



Hor. — Parkgate Coal. Loc. — Church Lane Colliery, near 

 Barnsley (Hemingway). 



Geol. Trans. Y.N.U., 1888 (pub. 1890). 



