He has ever been the patron saint of Mediterranean sailors, who regard St Elmo's fire as the visible sign of his guardianship. The phenomenon was known to the ancient Greeks, and Pliny in his Natural History states that when there were two lights sailors called them Castor and Pollux and invoked them as gods.
When the final work included extensive praise for the twin gods Castor and Pollux, Scopas complained.
This, when cast into forms and allowed to harden and dry slowly, comes out as transparent soap. A class of transparent soap may also be made by the cold process, with the use of coco-nut oil, castor oil and sugar.
But when the legend became common property, other and better-known heroes were added to their number - Orpheus, Castor and Polydeuces (Pollux), Zetes and Calais, the winged sons of Boreas, Meleager, Theseus, Heracles.
He told Simonides he was only going to pay him half the fee and if he wanted the other half, he should collect it from Castor and Pollux.
By preventing fermentation in the intestine these also tend to prevent or check diarrhoea, and they may do good after the irritant has been removed by castor oil.
Of the vegetable oils, in addition to cotton-seed and coco-nut, olive oil is the basis of soaps for calico printers and silk dyers; castor oil yields transparent soaps (under suitable treatment), whilst crude palm oil, with bone fat, is employed for making brown soap, and after bleaching it yields ordinary pale or mottled.
It fronted on to the ancient forum, part of the pavement of which, with a base for the equestrian statues of Castor and Pollux (as the inscription upon it records) has been laid bare beneath the present Piazza Vittorio Emanuele.
CASTOR OIL, the fixed oil obtained from the seeds of the castor oil plant or Palma Christi, Ricinus communis, belonging to the natural order Euphorbiaceae.
The implication was that Castor and Pollux, knowing of the imminent collapse of the roof, had come calling with the purpose of saving Simonides's life as their payment for the poem.