The law was independently discovered by British natural philosopher John Dalton by 1801, although Dalton's description was less thorough than Gay-Lussac's.
Gay-Lussacist sõltumatult avastas selle seaduse inglise loodusteadlane John Dalton 1801, kuigi tema kirjeldus oli vähem põhjalik kui Gay-Lussaci oma.