First: The encouragement of the cash buying of produce, and, if possible, the candling of all eggs with proper deduction for loss.
Examining eggs to determine their quality is called "candling."
If you are in doubt about the quality of any eggs you are candling break a few of them into a dish and examine them.
When he works, the room must be dark except for the covered light used in candling.
The loss in candling is generally kept account of, but is seldom charged back to the shipper.
He was "candling" a phial of ground glass in his fingers as a good wife tries eggs.
This saved the wages of the egg twirlers, whose method of candling eggs, as it was called, was far less rapid than the Separator.
First grade that can be separated by candling, corresponding to about twenty-four hours of incubation.
Old English candel "lamp, lantern, candle," an early ecclesiastical borrowing from Latin candela "a light, torch, candle made of tallow or wax," from candere "to shine," from PIE root *kand- "to glow, to shine, to shoot out light" (cf. Sanskrit cand- "to give light, shine," candra- "shining, glowing, moon;" Greek kandaros "coal;" Welsh cann "white;" Middle Irish condud "fuel").
Candles were unknown in ancient Greece (where oil lamps sufficed), but common from early times among Romans and Etruscans. Candles on birthday cakes seems to have been originally a German custom. To hold a candle to originally meant "to help in a subordinate capacity," from the notion of an assistant or apprentice holding a candle for light while the master works. To burn the candle at both ends is recorded from 1730.
candle can·dle (kān'dl)
Heb. ner, Job 18:6; 29:3; Ps. 18:28; Prov. 24:20, in all which places the Revised Version and margin of Authorized Version have "lamp," by which the word is elsewhere frequently rendered. The Hebrew word denotes properly any kind of candle or lamp or torch. It is used as a figure of conscience (Prov. 20:27), of a Christian example (Matt. 5:14, 15), and of prosperity (Job 21:17; Prov. 13:9).