110 
WILLIAMSON : MEMOIRS AND PAPERS. 
On Goethe as Botanist and Osteologist. Pub. of English Goethe 
Soc, 1887. 
On the relation of Calamodendron to Calamites. Mem. of the Lit. 
and Phil. Soc. of Man., ser. 3, vol. x., p. 255, seq. 1886-7. 
A Monograph of the Morphology and Histology of Stigniaria 
ficoides. Pahuon. Soc, London, 1887. 
On some anomalous cells developed within the interior of the 
vascular and cellular tissues of the Fossil Plants of the Coal 
Measures. Ann. of Botany, vol. ii., 1888. 
On the Fossil Trees of the Coal Measures. Man. Geol. Soc, 1888. 
On the present state of the Inquiry into the Microscopical Features 
of the Coal of the World, and into the organization of the 
Fossil Plants of the Coal Measures. Brit. Assoc. Kept., 1889. 
On our present knowledge of the Vegetation of the Carboniferous 
Age and the further advancement of the study of the subject. 
Man. Geol. Soc, 1891. 
Address on the Mineralization of the Minute Tissues of Animals 
and Plants. Journ. of Quekett Micros. Club, vol. v., ser. 2, 
pp. 186-195, 1892. 
General Morphological and Histological Index to the Author's 
Collective Memoirs on the Fossil Plants of the Coal Measures. 
Pts. i., ii. and iii. Alem. and Proc of the Man. Lit. and Phil. 
Soc, 1891-1894. 
On his earlier Pakeontological Work. Man. Geol. Soc, 1892. 
SIGILLARIA AND STIGMARIA, BY SIR WM. DAWSON, C.M.G., F.R.S., ETC., 
AND PROF. W. C, WILLIAMSON, LL.D., F.R.S. 
(Natural Science. Vol. i., 1892. J 
On the Genus Sphenopliyllum. Nature, 1892. 
On light thrown upon the question of the Growth and Development 
of the Carboniferous iVrborescent Lepidodendra by a study of 
the details of their organization. Man. Lit. and Phil. Soc, 
1894. 
Biographical Sketch of Le ^larquis de Saporta. Man. Lit. and 
Phil. Soc, 1895. 
