406 BIBLIOGRAPHY OF 1 884 : GEOLOGY AND PALEONTOLOGY. 



W. C. Williamson. Lancashire and Yorkshire. 



On some supposed Fossil Algae from Carboniferous Eocks, Brit. Assoc. Rep., 

 Southport, 1883, p. 493. 



The specimens come from Yoredale rocks, on the banks of the Hodder, 

 and, like the similar fossils from the Cambrian which have been called 

 Chrossochorda, are probably casts of the tracks of Crustacea or other animals. 



W. C. Williamson. Yorkshire. 

 Biographical notices of eminent Yorkshire Geologists : III. * John 

 Williamson.' Proc. Yorks. Geol. and Polyt. Soc, vol. viii., pp. 296, 313. 



A graphic account of the life and work of John Williamson, the Scar- 

 borough geologist. 



W. C. Williamson. Lancashire, Yorkshire. 



Presidential address to the Geological Section of the British Association at 

 Southport. Rep. Brit. Assoc., Southport, 1883, pp. 475-489. 



A sketch of the present state of our knowledge of the vegetation of the 

 Carboniferous Age, classified and described as follows : — Fungi, Algse, 

 Vascular Cryptogams, Ferns, Calamites and Calamodendron, Lycopodiacese, 

 Gymnosperms, Cycads, Conifers. 



Henry Woodvv^ard. 

 Note on the Synonymy of Philiipsia gemmulifera, Phillips sp. 1836, a 

 Carboniferous Trilobite. Geol. Mag., January, pp. 22, 23. 



Gives reasons for restoring Phillips' specific name of gemmulifera for this 

 Carboniferous Limestone form, and discarding that of Schlotheum ( T.pustulatus) 

 as untenable. 



Henry Woodward. Yorksh., Northumb., Derbysh., Cumb. 



A Monograph of the British Carboniferous Trilobites. Part II., pp. 39 86, 

 plates vii.-x. Pal. Soc, 1884. 



Yorkshire, Northumberland, Derbyshire, and Cumberland species are 

 referred to and described. 

 Horace Woodward. Northumb., Cumb., Yorksh., Derbysh. 



Synopsis of the Genera and species of Carboniferous Limestone Trilobites. 

 Geol. Mag., November, New Series, Decade III., vol. i., pp. 484-489. 



Grijffithides glaber H. Woodw., five specimens of its pygidia from the 

 Carboniferous Limestone of Northumberland, and one from the Upper Carboni- 

 ferous Shale of Ashford, Derbyshire, are in the Museum of Practical Geology. 

 Griffithides? Carringtonensis (Eth. MS.) H. Woodw., from Falls Brew, 

 Caldbeck, Cumberland (Brit. Mus.), and from Longnor and Narrowdale, 

 Derbyshire (Mus. Pract. Geol.). Philiipsia laticaiidata ti. Woodw., Bolland, 

 Yorkshire. Philiipsia carinata (Salter MS.) H. Woodw., . Carboniferous 

 Limestone of Derbyshire. 



Thomas Wright. Yorkshire. 

 Monograph of the Lias Ammonites of the British Islands. Part VII. Descrip- 

 tive of Species. Pages 441-480, plates Ixxviii.-lxxxvii. Pal. Soc, 1884. 

 Yorkshire specimens are described. 

 W, T. Wright and T. Burton. Lincolnshire. 

 Analysis of Woodall Spa. Journ. of Chem. Soc, June, xlv. 168-170. 



The Spa is in Lincolnshire, about midway between Lincoln and Boston. 

 Yorkshire Naturalists' Union. 



[Excursions.] Reported in the Naturalist. Sherburn, vol. ix., p. ;2I9. 



Naturalist, 



