1. During Theo’s previous stay in the Netherlands (5–13 January 1889, for the official announcement of the engagement), something had gone wrong with Vincent’s allowance; see letter 741.
2. Van Gogh had last mentioned receiving paint and canvas from Tasset in November 1888 (letter 719).
3. Van Gogh named two of these studies in his letter to Signac (letter 756): La Crau with peach trees in blossom (F 514 / JH 1681) and Orchard in blossom with a view of Arles (F 515 / JH 1683). The two large orchards are the no. 30 canvases Orchard in blossom with a view of Arles (F 516 / JH 1685) and Orchard (F 511 / JH 1386). Among these spring studies were also Road with pollard willows (F 520 / JH 1690) and Field with flowers under a stormy sky (F 575 / JH 1422). Cf. also Feilchenfeldt 2005, pp. 294-295 (he adds Orchard (F 552 / JH 1381), but we date that painting to April 1888). Hulsker dates F 511 to April 1888; see letter 607, n. 2.