of the Andalusian botanist Ibn al-Baytar, who died in Damascus in 1248. The Arabic term for saltpetre is 'Chinese snow' while the Persian usage is 'Chinese
২৭ ডিসেম্বর ২০১৩। Ted Scambos (২৫ মে ২০১৮)। "Scambros et al 2018" (পিডিএফ)। The National Snow and Ice Data Center (NSIDC)। NOT CORRECTED। "BBC Corrections