From the text:
Our mornings were occupied in tending the animals; the boys amused themselves with their pets, and assisted me in the manufacture of carding-combs and a spindle for the mother. The combs I made with nails, which I placed head downward on a sheet of tin about an inch wide; holding the nails in their proper position I poured solder round their heads to fix them to the tin, which I then folded down on either side of them to keep them perfectly firm. In the evening, when our room was illuminated with wax candles, I wrote a journal of all the events which had occurred since our arrival in this foreign land; and, while the mother was busy with her needle and Ernest making sketches of birds, beasts, and flowers with which he had met during the past months, Fritz and Jack taught little Franz to read.