WAL 



583 



Walker (Jolin Francis). On tbe Tossils contained in a Lower Grreensand 

 deposit o£ Phosphatic Nodules in Bedfordshire. (Tract.) 



8vo. London^ 1866. 



. A Eeply to Mr. Seeley's remarks on my account o£ the Phosphatic 



Deposit at Potton, in Bedfordshire. (Tract.) 8vo. London^ 1867. 

 . On some new Coprolite-wwkings in the Pens. (Tract.) 



8vo. London^ 1867. 

 . On some new Terebratulidse from Upware. (Tract.) 



8vo. London, 1867. 



. On Secondary Species of Brachiopoda [Lower Grreensand Brachio- 



poda]. (Tract.) 8vo. London, 1870. 

 . On the occurrence of Terehratula Morieri in England. (Tract.) 



8vo. London, 1878. 

 Walker (Eobert J.). Biography. See Slingsby (Jon.). 

 Wall (Gr. P.) and Sawkins (J. Q-.). Eeport on the Geology of Trinidad. 



8vo. London, I860. 



. See Sawki]S"S (James Gray). 



Wallace (Alfred Eussel). On the Eio Negro. (Tract.) 



8vo. London, 1853. 



. On the Law which has regulated the Introduction of New Species. 



(Tract.) 8vo. London, 1855. 



. The Geographical Distribution of Animals. 2 vols. 



8vo. London, 1876. 

 Wallace (John). Section at Blaenavon, near Abergavenny. (Tract.) 



Fcap. fol. MS. 1842. 



Wallace (William). The Laws which regulate the Deposition of Lead- 

 ore in veins, illustrated by an examination of the Geological Struc- 

 ture of the Mining Districts of Alston Moor. 8vo. London, 1861. 



Wallerius ( Johann Gotschalk). Mineralogie, ou description generale des 

 substances du regno mineral, traduit de lAllemand. 2 vols. 



8vo. Paris, 1753. 



. De Systematibus mineralogicis et systemate mineralogico rite 



condendo. 8vo. Stochholm, 1768. 



. Meditationes physico-chemicse de Origine Mundi, imprimis Geo- 



cosmi ejusdemque Metamorphosi. 



8vo. Stockholm and Upsala, 1797. 

 Wallich (G. C). On Apparatus for Dredging at moderate depths in the 

 Deep Sea, and for capturing floating objects from shipboard. 

 (Tract.) 8vo. London, 1859. 



. Notes on the Presence of Animal Life at Vast Depths in the Sea ; 



with observations on the nature of the Sea- bed, as bearing on Sub- 

 marine Telegraphy. (Tract.) 2 copies. 8vo. London, 1860. 



. On the Development and Structure of the Diatom-valve. (Tract.) 



8vo. London, 1860. 



. On the Markings of the Diatomacese in common use as Test- 

 objects. (Tract.) 8vo. London, 1860. 



■ On the Siliceous Organisms found in the Digestive Cavities of the 



Salp^, and their relation to the Flint Nodules of the Chalk Forma- 

 tion. (Tract.) 8vo. London, 1860. 



. On an improved method of making Microscopic Sections; 



(Tract.) 8vo. London, 1861. 



