Introduction. [The introduction has yet to be written.]
Sonnets 18, 19, 20, 21, and 23 were numbered XV., XVI., XVII., XVIII., and XIX., respectively in Poems (1673).
Lawrence. Henry Lawrence was Lord President of the Council under Cromwell, and his son Edward Lawrence later became a member of Parliament (Hughes, 168). As seen in Odes 1.16, Horace began many poems with references to people's ancestors.
Favonius. The west wind or zephyr, was often invoked by Horace in delight of springtime. See Odes 1.4.1-5.
The Lillie. In Matthew 6:28-9 Jesus calls attention to the lillies of the field as emblems of patient trust in God.
Attick. Of or pertaining to Attica, or to its capital Athens. See OED2.
Tuskan Ayre. Italian music.
spare. Although often read as "refrain," some critics read it as "afford" (Carey and Fowler 410-11).