Perhaps no region can be found containing more beautiful _tremolite_. All its varieties occur; the fibrous of Litchfield and Bethlem is very distinguished. In Canaan, it is found containing crystals of sulphuret of iron. I do not speak here of the tremolite found in the limestone range. _Common asbestus_ exists in Washington and New Milford. The white _augite_ is a mineral found in this range; in Litchfield, in six-sided prisms very much flattened, on quartz, and carbonate of lime with tremolite. They sometimes occur several inches long. The _lamellar_ and _slaty_ varieties of common _hornblende_ are very common. Radiated _actynolite_ of a beautiful bluish green in Litchfield; in Canton of a brownish green. _Steatite_ is common, and is quarried in Litchfield. The varieties of _talc_ are very common, connected with steatite, cyanite, and chlorite. _Chlorite_ in Litchfield, is found on quartz, with talc. Porcelain clay in Litchfield in small quantities, and in Washington. _Graphite_ is found in Cornwall in great quantities. Its gangue is gneiss and sienite. It is lamellar, and has a metallic lustre; is easily obtained, and might be made useful. Epidote and cyanite are found with it. _Ores_ are not common. Oxides of iron, and sulphuret of iron are scattered over the whole range. Near Mount Prospect in Litchfield, sulphuret of iron in mass is in great quantities; and sulphate of iron on the surface of the ground near it. A stone containing a few grains of _native copper_ was found in Litchfield. The red oxyde of _titanium_ occurs in Litchfield sparingly. A very handsome specimen of the _reticulated oxyde of titanium_, was picked up. It was on mica, and the mica had an evident tendency towards the same form. BOTANY. ART. VI. _An Account of two North American Species of Rottböllia, discovered on the Sea-coast in the State of Georgia, by Dr._ WILLIAM BALDWIN, _of Philadelphia_. _Flowers in pairs, or two from each joint of the rachis, one neutral. The neutral, or imperfect flowers, pedicillate._ _Rottböllia corrugata._ Culmo erecto, compresso, sulcato, glabro, ramoso: foliis longis angustisque: spicis sub-compressis, nudis super uno latere, solitariis et terminalibus, supremis approximatis: calycis bivalvis, valva exteriori transversè _corrugata_ et longitudinaliter rugosa: corolla trivalvis. Culm erect, compressed, sulcate, smooth, ramose: leaves long and narrow: spikes slightly compressed, naked on one side, solitary and terminal, approximating towards the summit: calyx 2-valved, the exterior valve transversely _corrugate_, and longitudinally wrinkled: corolla 3-valved. _Vid._ _Nuttall's North American Genera_, v. I. p. 84.[51]