Air: Ariel, Elves (singular, Elf). Caves or Caverns: Hill-people (Hög-folk, hög = height). Corn: Ceres (2 syl.) (Greek, Demeter).
Domestic Life: Vesta.
Eloquence: Mercury (Greek, Hermes). Evening: Vesper.
Fates (The): Three in number (Greek, Parcæ, Moiræ, 2 syl., Keres). Fire: Vulcan (Greek, Hephaistos, 3 syl.), Vesta, Mulciber. Fairies: (q.v.).
Furies: Three in number (Greek, Eumenides, 4 syl., Erinnyes) Gardens: Priapus, Vertumnus with his wife Pomona. Graces (The): Three in number (Greek, Charites).
Hills: Trolls. There are also Wood Trolls and Water Trolls. (See below Mountains.) Home Spirits (q.v.): Penates (3 syl.), Lares (2 syl.).
Hunting: Diana (Greek, Artemis). Infernal Regions: Pluto, with his wife Proserpine, 3 syl. (Greek, Aides and Persephone). Justice: Themis, Astræa, Nemesis.
Love: Cupid (Greek, Eros). Marriage: Hymen. Medicine: Æsculapius. Mines: Trolls.
Morning: Aurora (Greek, Eos). Mountains: Oreads or Oreades (4 syl.), from the Greek, oros a mountain; Trolls. Ocean (The): Oceanides.
Poetry and Music: Apollo, the nine Muses. Rainbow (The): Iris.
Riches: Plutus. Shakespeare speaks of “Plutus' mine,” (Julius Caesar, iv. 3). Rivers and Streams: Fluviales, 4 syl. (Greek, Potameides, 5 syl.).
Sea (The): Neptune (Greek, Poseidon, 3 syl.), his son Triton, Necks, Mermaids, Nereids (3 syl.). (See Sea.) Shepherds and their Flocks: Pan, the Satyrs.
Springs, Lakes, Brooks, etc.: Nereides or Naiads (2 syl.). Time: Saturn (Greek, Chronos).
War: Mars (Greek, Ares), Bellona, Thor. Water-nymphs: Naiads (2 syl.), Undine (2 syl.). Winds (The): Æolus.
Wine: Bacchus (Greek, Dionysos).
Wisdom: Minerva (Greek, Pallas, Athene or Pallas-Athene). Woods: Dryads (A Hama-Dryad presides over some particular tree), Wood-Trolls. Youth: Hebe Of course this is not meant for a complete list of heathen and pagan deities. Such a list would require a volume.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894