Dr Houston's account of some plants from la Vera Cruz, with details of the cochineal harvest in Mexico Details about the plants Jallap and Contrayerva Figure of the town of Guaspaltepeque, in the Bishopric of Oaxaca, Mexico, showing the manufacture of cochineal from insects fed on Nopal or wild Indian fig tree; the young insects are picked off and cured Details about different types of cochineal Details of the cochineal harvest in the bishopric of Antequera, Mexico Original letter dated 9 December 1730 at Kingston Read to the Royal Society on 1 July 1731 1730