the Nomenclature of the Foramimfera. 263 



10. Valviilina (Tetrataxis) palgeotroclius [Ehr.]. 



11. Endothjra antiqua [Ehr.). Possibly the same as E, 



Bowmani^ Phil. 



We have now finished the critical examination of the illus- 

 trated Foraminifera so liberally and magnificently set forth in 

 the ' Mikrogeologie.' There remain, however, some equally 

 beautiful drawings and coloured engravings of Foraminifera 

 and their internal casts in the ' Abhandlungen ' of the Berlin 

 Academy, illustrative of the great microscopist's researches in 

 green sand resulting from the infillings of these minute shells 

 and other little cavernous organisms and the subsequent decay 

 of the enclosing tissues, and of his successful work in the 

 artificial production of analogous casts. In the ' Monatsberichte' 

 for 1858 are still later researches on such siliceous casts, 

 wdtli some illustrations. We proceed, therefore, with the ex- 

 amination of these plates, as part of the Miscellaneous Fossil 

 Foraminifera figured by Dr. Ehrenberg, 



§ 13. On Green Sand^ and its elucidation of Organic 

 Life. (Abhandl. preuss. Akad. Wiss. aus dem Jahre 1855, 4to, 

 Berlin, 1856, ])p. 85-176 ; read in July and August 1854, and 

 in February, March, May, and July 1855.) 



In this memoir are described foraminiferal shells and internal 

 casts from : — 



I. & II. 1. Tertiary glauconitic sand of Pontoise, France, 

 p. 104 ; 2. Tertiary glauconitic sand of Pierre-Laie, near Paris, 

 p. 105 ; 3. Tertiary green sand from Westeregeln, Hanover, 

 p. 105 ; 4. Nummulitic Limestone of Traunstein near the 

 Chiem-See, Bavaria, p. 105 ; 5. Nummulitic Limestone of 

 Montfort, Departement des Landes, Frdnce, p. 106 ; 6. Num- 

 mulitic Limestone of Fontaine-de-la-Medaille, near Montfort, 

 p. 107 ] 7. Green sand from beneath the ZeuglodonAm\e's,XonQ^ 

 Alabama, North America, p. 107 ; 8. Chloritic Limestone of 

 the Planer, near Werl, Westphalia, p. 107 ; 9. Upper Green- 

 sand, Compton Bay, Isle of Wight, p. 109 ; 10. Greensand of 

 Haldon Hill, Exeter, p. 109; 11. Upper Greensand, Handfast 

 Point, Swanage Bay, England, p. 109 ; 12. Lower Greensand, 

 Handfast Point, p. 110 ; 13. Gault, Escragnolles, Dep. du Var, 

 France, p. 110; 14. Neocomian, Lales, Dep. du Var, p. 110; 

 15. Loose green sand of the Middle Jurassic beds near Mosco\v, 

 p. Ill ; 16. Compact green sand of the Jura, near Moscow, 

 p. Ill ; 17. Lower Silurian green sand of St. Petersburg, 

 p. 112. 



* See also Prof. J. W. Bailey's Memoir " On the Origin of Green Sand, 

 and its formation in the Oceans of the present Epoch," in the Quart. Journ. 

 Microsc. Soc, no. xviii., 1867, pp. 83-87. 



