nitrous oxide is the so-called laughing gas.
"Manhood of Humanity."
Alfred Korzybski
The ammonia or spirits of nitrous ether drench should be administered every three hours so long as there is much failure of strength.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
Instead of the ammonia, a drench composed of 3 ounces of spirits of nitrous ether in a pint of water may be given, if more convenient, but the ammonia drench is preferable.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler