Alcidc d'Orbigny. 91 



The pagination goes on up to 150, but it is quite different to that of 

 the original in the Ann. Sci. Nat. 



It would seem, therefore, that there were at least three different 

 issues of the reprint from the Ann. Sci. Nat., which accounts for 

 discrepancies in references and synonymies. Cf . de Ferussac's " Additions 

 et Corrections," published in 1827 (see p. 29). 



The final " Prospectus " issued to advertise the Models in 1826 is 

 of great rarity, few copies apparently having been preserved ; there is 

 one in the Geological Library at South Kensington. It is an elaborate 

 pamphlet of eight pages, setting out the importance of the study of the 

 " Cephalopodes Microscopiques," and their supposed relationship to the 

 larger genera, with a short summary of the earlier authors who had dealt 

 with them as " Nautiles.'" It points out the advantages of the method 

 of presenting them to observers in the form of enlargements, and gives 

 a long extract from Latreille's "Rapport." The "depot" as before 

 is " chez M. Guerin," and at the offices of de Ferussac's Bulletin in the 

 Rue de I'Abbaye, No. S. 



APPENDIX D. 



The " CiNQUiEjiE livraison " of the Models. 



In his Memoirs on the Cuba Foraminifera and on the Cretaceous 

 Foraminifera of the Paris Basin we find this note in identical terms, 

 referring to the original Models ^ : " This collection, which we propose 

 to augment by an instalment devoted to the genera discovered since its 

 first publication, and to the shells characteristic of the formations, is, 

 as before, to be had at No. 5 Rue Louis le Grand, Paris." The Models 

 to be included in the new instalment were as follows : — 



101. Conuhna. See YIL, p. 24 ; XII., p. 71. 



102. Webbina. See VII., p. 26 ; VIII., p. 125 ; XIL, p. 73. 



103. Flabellina. See VII., p. 42 ; X., p. 23. 



104. Verneuilina. See VII., p. 104 ; X., p. 38 ; XIL, p. 182. 



105. Candeina. See VIL, p. 108 ; XIL, p. 11)2. 



106. Faujasina. See VIL, p. 109 ; XIL, p. 194. 



107. Chrysalidina. See VIL, p. 109 ; XIL, p. 194. 



108. Gaudryina. See VIL, p. 112 ; X., p. 43 ; XII.; p. 197. 



109. Sagrina. See VIL, p. 149 ; X., p. 47 ; XIL, p. 252. 



110. CuneoHna. See VIL, p. 150 ; XIL, p. 253. 



111. Unilocnlina. See VIL, p. 161 ; XIL, p. 261. 



112. Crucilocuhna. See VII., p. 182 ; XIL, p. 280. 



113. Citharina. See VIL, p. xxxvii. 



114. Hauerina. See VIL, p. xxxviii ; XIL, p. 118. 

 115. 



116. Bolivina. See IX., p. 61 ; XIL, p. 239. 



' X., p. 2, note 2 ; VII., p. xxi, note 2. 



