Alcide d'Orhigny. 35 



The " Planches inedites " are contained in two large cardboard 

 cases, preserved in the room of Professor Marcellin Boule, Director 

 of the Museum of Palceontology at the Jardin des Plantes.^ 

 I take this opportunity of recording an expression of my warm 

 gratitude to Professor Marcellin Boule for the courtesy with which 

 he placed these plates, as well as the d'Orbignyan types, at my 

 disposal during the several days which their examination occupied, 

 and for his untiring kindness since that date in assisting me in the 

 preparation of this Memoir, by obtaining for me the portraits of 

 d'Orbigny, and the reproductions of the " Planches " which illustrate 

 it, besides giving and obtaining for me a great deal of information 

 upon its subject. 



Each genus has a brown-paper cover to itself, which contains 

 everything which d'Orbigny had prepared. The contents of these 

 files come under the following six categories : — 



(i) Finished plates in which the species are beautifully drawn 

 from all necessary aspects, in pencil and wash, delicately tinted 

 and highly finished. I have had a finished plate of Eosalina, and 

 of Eotalia, reproduced (reduced by half) to illustrate this Memoir 

 (Plates VIII and IX). They suggest being modelled somewhat 

 upon the plates in Fichtel and Moll's work, for which, as we shall 

 see (p. 56), d'Orbigny had the highest admiration, each being framed 

 in a thick black line. Each figure is numbered, and the names 

 of the species figured are written at the foot of the " Planche," 

 each name being followed by the number to which it corresponds 

 in the " Tableau Methodique." In each group of species-figures 

 a dot or other mark represents the " natural size " of the 

 species. 



(ii) Incomplete plates containing one or more finished 

 drawings, the rest of the species intended to occupy the plate 

 being indicated more or less perfectly in outline. Sometimes 

 these are finished as regards the pencil work, only wanting to be 

 tinted. These have the figure-numbers, and names and reference- 

 numbers at the foot as in the finished plates. 



(iii) Sheets on which the black frame is drawn, containing 

 only the pencil outlines of the species intended to occupy it. 

 These are numbered and referenced the same as (i) and (ii), and 

 a pencil number refers to sheets in the portfolio, where the pre- 

 liminary drawings and sketches for the plates (iv) are to be 

 found. The locality of origin of the species is generally added 

 in pencil. 



(iv) Sheets of drawings more or less highly finished in black 

 and colours, but not so perfect as the finished drawings. These 

 were d'Orbigny's ^vQt finished drawings and constituted a book of 



^ The first case contains also d'Orbigny's original MS. of the " Tableau 

 Methodique." 



D 2 



