CASH: FOSSIL FRUCTIFICATIONS OF YORKSHIRE COAL MEASURES. 455 
1876. Renault, B. Recherches sur quelqiies Calainodendr^es 
et sur leurs affinites probables," " Comptes Rendus 
de FAcc. des Sc. de Paris," vol. 83. 
1876. ScHENK, A. " Ueber die Fruchstande fossiler Eqiiisetineen, 
Botan. Zeitung." Bd. 34. 
1876. Weiss, Ch. E. " Beitrage zur fossilen Flora I. Steinkohlen 
Calamarien mit besonderer Berucksichtigimg ihrer 
Fructificationen. Abhandl. zur geo. specialkarte von 
Preussen." Bd. II., Heft 1. 
1876. Boulay, N. " Le Terrain Houiller du Nord de la France 
et ses veg^taux fossiles." Lille. 
1876. Williamson, W. C " On the Org. Foss. Plants of the C. 
Meas." Pt. 7, " Myelopteris, Psaronius, Kaloxylon.' 
Phil. Trans. Lond. 
1877. Lebour, G. a. " Illustrations of Fossil Plants." New- 
castle-on-Tyne. 
1877. Grand EuRY, F. C. "La Flore carbonifere du Departe- 
ment de la Loire et du Centre de France." Paris. 
1877. Williamson, W.C. " Org. Fossil Plants of C. M." Pt. 8. 
" Ferns, Gymnospermous Stems and Seeds." Phil. 
Trans. Lond. 
1878. Green, A. H., Russell, Dakjnis, Ward, Fox-Strangways, 
Dalton and Holmes. " The Geology of the Yorkshire 
Coal Field." " Memoirs of the Geological Survey." 
London. 
1878. Williamson, W. C. "On Org. of Foss. Plants of C. 
Meas." Pt. 9. Phil. Trans., Lond. 
1878. Cash, Wm., and Hick, Thos. " Contrib. to the Fossil 
Flora of Halifax." Pt. 1. Proceed, of Yorkshire 
Geol. and Polytech. Society. 
1879. Do. do. do. Part IL 
1879. Renault, B. " Structure comparee de quelques tiges de 
la Flore carbonifere." Paris. 
1879-85. Zittel. K. A " Handbuch der Palseontologie." Bd. II., 
Lief, 1-4. 
