E'92i.] 



103 



WAHNSCHAFFE, F. Obit.— See KeilKack, K., 8. 



WAITZ, P. 'Nubes Ardientes' obsevvadas en las Erupciones del Jorulla (1759), del 

 Ceboruco (1870) 3- del Volcan de Colima (1913). Mem. Soc. cient. ' Antonio 

 Alzate,' xxxvii. pp. 267-277, pis. xxv-xxvii. 1920. 



2. El Volcan del Jorullo. Ibid. pp. 278-290. 1920. 



3. Docuinento relative- a la Primera Erupcion del Jomllo. Ibid. pp. 291-294. 



1920. 



4. La Nueva Actividad y el Estado Actual del Volcan Popocatepetl. Ibid. 



pp. 295-313, pis. xxviii-xxxv. 1920. 

 ■ 5. Popocatepetl again in Activity. Am. Journ. Sci. ser. 0, i. pp. 81-87, figs. 



1921. 



WALCOTT, R. H. Evidence of the Age of some Australian Gold Drifts, with 

 special reference to tbose containing Mammalian Remains. Hec. Geol. Surv. 

 N.S. W. ix. pp. 66-97. 1920. 



WALKER, G. B. Obit.— See Anon., 46. 



WALKER, T. L. Cleavable Bornite from Usk, B.C. Am. Min. vi. pp. 3-4. 

 1921. 



2. Skutterudite from Cobalt, Ontario. Ibid. pp. 54-56, fig. 1921. 



3. ' Allemontite ' from Atlin, B.C. Ibid. pp. 97-99, pi. v. 1921. 



WALKER, W. T. Some Advances in Geological Science. [Presidential Address.] 

 Proc. Liverpool Geol. Soc. xiii. pp. 68-77. 1921. 



WALKOM, A. B. On JSfummulospermrim , gen. now, tbe probable Megasporangium 

 of Glossopteris. Quart. Journ. Geol. Soc. lxxvii. pp. 289-296. fig., pi. xxi. 

 1921 ; & Abs. Proc. Geol. Soc. 1920-21, pp. 84-85. 1921. 



2. On tbe Occurrence of Otozamites in Australia, witb Descriptions of Speci- 

 mens from Western Australia. Proc. Linn. Soc. N.S.W. xlvi. pp. 147-153, 

 pi. x. 1921. 



3. On a Specimen of Noeqgerathiopsis from tbe Lower Coal Measures of New 



South Wales. Ibid. pp. 374-375, pi. xxv. 1921. 

 . See also Sussmixch, C. A. 



WALLACE, R, C. Tbe Flin-Flon Ore-Body. [Abstract.] Mining Mag. xxiv. 



pp. 241-244, figs. 1921. 

 WALLACE, W. H. Obit.— See Anon., 47. 



WALTER, 0. T. Upper Cambrian Trilobites. [Abstract.] Bull. Geol. Soc. Am. 

 xxxii. p. 128. 1921. 



WALTHER, J. Erlauterung zur Geologischen Strukturkarte von Deutschland 

 und seinen Nachbargebieten. Pp. 1-35. 8vo. Leipzig, 1921. 



2. Das Unterirdiscbe Wasser und die Wiinschelrute. Pp. 1-32. 8vo. Gern- 



rode (Harz), 1921. 



3. Geologie der Heimat. 2nd Edition. Pp. 1-228, figs., pis. i-xxxii, geol. 



map. 8vo. Leipzig, 1921. 

 4. Geologie von Deutschland. Eine Einfiihrung in die heimiscbe Land- 



schaftskunde fur die Lehrende und Lernende. 3rd Edition. Pp. i-xviii, 



1-489, figs!, geol. maps & sections. 8vo. Leipzig, 1921. 

 WALTHER, X. Zur Definition der Begriffe Grauwacke, Arkose, Ton und Ton- 



schiefer. Geol. Rundsch. xi. pp. 355-356. 1921. 

 WANDTKE, A. See Wade, W. R. 



WANNER, J. Palaontologie von Timor. Lieferungen i-vii. 4to. Stuttgart, 

 1914-1921. See also Broili, F., Buelow-Trummer, E. von, Felix, J., 

 Gerth, H., Haaniel, C. A., Jaworski, E., Schubert, R., Tesch, P., 

 Vinassa de Regnt, P., Sf Welter, O. A. 



2. Die Permiscben Ecbinodermen von Timor. I. Teil. Wanner, ' Palaonto- 

 logie von Timor,' vi. no. 11, pp. i-viii, 1-329, figs., pis. xcvi-cxiv. 1916. 



WARD, L. K. Report on the Deposit of Lignite near Moorlands. Dep. Mines, 

 S. Austr. Mining Rev. no. 32, pp. 32-38, 2 pis. 1920. 



2. Report on the Clays worked by tbe Longwood Tessellated Tile Company, 



Ltd., at Longwood. Ibid. pp. 38-40. 1920. 



3. Report on tbe Nature and Origin of Oily Matter found on tbe Shore at 



Encounter Bay and Kangaroo Island. Ibid. pp. 40-43. 1920. 



4. Notes on Recent Discoveries on the Eukaby Field. Ibid. pp. 43-46. 



1920. 



— — 5. Government Drilling Operations. 1. — Diamond Drilling at Cunliffe. 



2. — Boring Operations for Lignite at Hope Valley. Ibid. no. 33, pp. 24-37, 



figs, [sections]. 1921. 

 6. Notes on the Results of recent Boring Operations in the Black Swamp, 



Hundred of Nangkita, and the Prospects of Obtaining Supplies of Petroleum at 



this Spot. Ibid. pp. 45-47. 1921. 



