An account of Acer saccharum Marsh., the sugar-maple tree, and of the processes involved in collecting the sap and extracting sugar from it. However, the botanical-technical description is, as quoted, of Acer saccharinum L., the silver-maple, and the illustration (previously published in: O fazendeiro do Brazil / José Mariano da Conceição Velloso. Lisbon, 1798, v. 1, part 1: plate facing p. 169) is yet of a different species, Acer pseudoplatanus L., the mountain-maple, a species native in Europe and Western Asia, but often planted as a shade tree in eastern North America and occasionally escaped from cultivation. Appended is a brief account of Panax quinquefolius L., the American ginseng.

Title vignette: Royal coat of arms of Portugal.

Signatures: pi1 A-D⁴ E² (pi1 verso blank)

Plate unnumbered.

Includes: "Observaçaõ breve. Sobre Ginsaõ da America Pannax quinquefolium de Linn." (p. 33-36)

Rodrigues, J.C. Bib. Brasiliense, 1258.

Moraes, R.B. de Bib. Brasiliana (rev. and enl. ed.), 560.

John Carter Brown Library copy bound in contemporary paper wrappers.