Some Months ago I made a Franco-Prussian Listmania in Amazon.com here is the link
http://www.amazon.com/exec/obidos/tg/listm...4838123-5502560
Have you try Chapitre.com, when I was looking for the Bucquoy Series on the Napoleonic Army I find then there.
You can find a big list of Illustrated books on the Franco-Prussian War on
www.lelivrechezvous.com, this is where I bought my copy of the Alphonse de Neuville: L'épopée de la défaite
Tradition Magazine has a special number which you can find in LCV
HS n°1 LA GARDE DE PARIS (1849-1870)
HS n°11 La gendarmerie impériale
les fidèles de Napoléon III (1849-1870)
I only have the first one on the Garde de Paris, don't speak french but they are fully illustrated with photos b/w and many color.
The Musée de l'armée Also publish two volume on the French Army from 1852-1870
L’armée de Napoléon III (ISBN:2904768009)
L’armée de Napoléon III (2) L’expédition du Mexique et la guerre franco-allemande 1870-1871(ISBN:2904768017)
I have both and they are mostly b/w photos of paints, uniforms and Equipment, but this two should be another must to your list, they are still available in many french bookstores.
A new book(well not that new 2000) L'Armée française vue par les peintres, 1870-1914 by François Robichon(ISBN:2733503138), the first chapter is dedicated to the Terrible Year, with 13 paints of many great Painters, here you can find that Detaille and De Neuville are not the only great painters of this era. If you like the french army uniforms this is another for your wish list.
I hope this list can help you, I would look into my magazines to see what can I find from this era.
See you later