France, 1841: Keep the Textbook Current

c. 1841:  1 Troy Ounce Platinum (Paris: Sponge, Retail) = Fr 27.99 ($ 5.20)
c. 1841/2:  1 Ozt. PGM Residues (Paris: Sponge, Ret.) = Fr 62.21 ($ 11.55)
 
c. 1841/2:  1 Ozt. Platinum (Paris: Wire, Retail) = Fr 31.10 ($ 5.78)

1841 Receipts, indicated:

Citation: Code universitaire, ou Lois, statuts et règlements de l'université royale de France, (1846)








One of the largest & wealthiest foreign merchant families in Cartagena, Nicolás Bonoli (Bonolo, Bonolli) ?

Se estableció en Cartagena donde fue secretario de la gobernación y rector de la Universidad. Casó con doña Angélica Bonoli, natural de Quibdó, hija de don Nicolás Bonoli, natural de Ravena, Italia, y doña Serafina del Carmen 

Senor Bonolli's  importation event occurred before 1850.  The increasing importation of platina in France during 1841 is notable, perhaps consistent with a dramatic price-drop and the Russian government's decision to abandon Platinum coinage.
 


c. 1835/6?  1 Troy Ounce Platinum = Fr 31.10 
c. 18?? (Unknown and possibly an error)  1 Troy Ounce Platinum = Fr 21.77  

First Edition: written c. 1837?
Citation: Entretiens sur la chimie et ses application, les plus curieuses, suivì de ... By Ducoin - Girardin (1841), p.216

A different textbook by one of the same authors, c.1844:

Citation: Leçons de chimie élémentaire: appliquées aux arts industriels  ; Jean Girardin

Second Edition, 1843  TBE

Third Edition, 1848 TBE

Fourth Edition, 1855 TBE

Fifth Edition, 1860 TBE

Sixth Edition: written c. 1863?

Citation: Entretiens sur la chimie et ses application, les plus curieuses, suivì de ... Ducoin - Girardin (1865), p.195 

Platinum Stills: c.1841

Citation: Cours de chimie organique appliquée, Vol. 1-2; Anselme Payen, C. Knab, V. Leblanc, Schmersahl (1842)