[4/26.]
Letter to the municipal councillors of Avignon.

[4/27.]
J. Stuart Mill, "Autobiography," chapter 6.

[4/28.]
I have visited this house; nothing, at all events outside, has changed in the least.

[4/29.]
Mill collaborated in his "Flore du Vaucluse": "A virtuous man whose recent loss we shall all deplore joined his efforts to mine in this undertaking." Letter to the Mayor of Avignon, 1st December, 1833, communicated by M. Félix Achard.

NOTES TO CHAPTER 5.

[5/1.]
"Chimie agricole."

[5/2.]
"Le Ciel." Lectures et Leçons pour tous.

[5/3.]
"La Terre." Lectures et Leçons pour tous.

[5/4.]
"La Chimie de l'oncle Paul." Lectures courantes pour toutes les écoles.

[5/5.]
"Histoire de la bûche."