Br yle Cr. No. 2270. Chalybeate Mineral Water. From a well 8 ft deep, at the Camp Ground near Danville junction. E D Fr. 2271. Old Chalybeate Spring Water, on Knoxville branch of L & N R R, + half a mile from Danville junction, at Alum Springs. Joseph Maxwell 2272. Chalybeate Water. From the so-called Plump Gun Spring. Alum Springs. CO2 not est. Held in { Fe CO3 solution } Mg CO3 by CO2 { Ca CO3 Mg CO3 see next page. Fe SO4 Sulphate of Potash .1977 '' Lime .0235 '' Soda .2917 '' Ammonia .1521 Magnesium Chloride. .2250 Sodium '' Free H2SO4 Silica Undetermined + cmo No. 2270 Photo 5 B, RR cut at Brassfield. The Devonian forms 3 massive layers, and the cutting black shale forms the top layer, about as thick as the middle layer of Devonian limestone. Photo 6 B. Photo front side of 2 views, broken from road 4 mi W of Brassfield across RR & old drum valley to brine fence palmetto & forests toymud. Photo 1 C. Photo West side of preceding. Brassfield locality Devonian L. 15 ft clay - Gabil. celcine limestone, at west of first straight stretch after 1st bend SE? Brassfield orchard and inclined white layers also = tops m' clint distance E? fence within platters to distant 30-32 ft interval from m. f. skims l. to top of very massive Brassfield limestone.