1. M.A. de Zwart, who lived in Kleine Laan in Voorburg.

2. For De Hollandsche Teeken-maatschappij, see letter 256, n. 8.

3. For Van Gend & Loos, see letter 135, n. 19 and letter 378, n. 7.

4. Van Gogh earlier quoted from Carlyle’s Sartor resartus: ‘Knowest thou that “Worship of Sorrow”?’, where the phrase stands for the Christian religion. See letter 356, n. 8.