from The Century Dictionary and Cyclopedia
- n. The grain of wood shown when a log is quartered. See quartered, 4. Compare felt-grain.
Sorry, no etymologies found.
Eventually he manages to hit an alcoholic doctor for a quarter-grain tablet of morphine.
“Heard him say before the op. that a quarter-grain would be a fatal dose.”
The third day of January, greatly to my surprise, a quarter-grain I found carried me through the twenty-four hours with apparently some slight remission of suffering.
"Just now you're going to have a quarter-grain of sleep dope and go to bed again."
For the pains I prescribed some quarter-grain tablets of sulphate of morphia, and went away.
"I have here a grain and a half of morphine in quarter-grain tablets.