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Basalt. 37* 'Chemical Char after s. " Before the blow pipe it melts eafily without addi- into an opaque black glafs. According to Dr e nnedy, the bafalt of the caftle rock of Edinburgh °ftensat 45 0 of Wedgewood ; that of Stafta at 38°*, an d I obtained fimilar refults with the bafalt of Arran, as Is mentioned in my account of that ill and. Constituent Parts. r Silica Alumina °xyd of Iron Lime ^ a gnefia °*7d of Manj ^oifture and 1 Soda Water s°>° 44,5° 48,0 * 6 »75 16,0 2J.0 20,0 16,a 8,0 9>5 0 9,0 2,0 fe 0,12 „ matter J.o 2,60' 4,o 2,CO 1,0 99.72 99,0 O “ V.. »..w » • ~ V. Vtuuu, according to KUpr.th. cording to Ktnntdy\- * Edinburgh Tranfaftions for 1799. c have now to deplore the death of this very able ana* peri* in conducting, and ingenuity in devifing cx- rnents was Qn jy r j va jj c ^ , excellence of a Kirwan, a atcl *«t, and a Klaproth. Geoznostic