cross the diggings more or less conformably to the course of the body of mineral on the south. Farther north (at Jefferson village,) a number of large East and Wests, accompanied with smal ler, particularly on the east, cross the North and Souths, interrupting and shifting them in their course. Farther north-west, is a series of ranges (Rocky Point and Waterloo Diggings,) bearing more E. N. Easterly, and the whole series is limited in that direction by two detached groups, nearly in line, one of N, N. Easts (the Dutch lot,) west of Culver's group, and the other of E. N. Easts, on the north, (the Hoss Diggings, 4e,) in smaller groups successively shifted to the south, marking the turn of the series from north to east.

The body of mineral along the south border of the Hazel Green Diggings is continued in a series of groups, also shifting to the north, through Langworthy's Diggings to Coon Branch (south-west of Benton,) east of which the series is continued in a direction east by south towards the New Diggings. East of the North and Souths at the north-east point of the Hazel Green Diggings, a large group of East and West sheets (the Sheet lot) extends across the high ridge west of Coon Branch towards the Benton Diggings, and is bordered east by groups of North and South sheets (Selkirk's and the Dry-Grove Diggings.) The northern border of series 4 bears E. N. E. from the Hoss Diggings to a small group of East and Wests* not far east of the Platteville road, whence a series of groups extends E. S. E. to the east point of Swindler's ridge (4f,) north of Benton village; more interrupted towards the west, and more approximated towards the east. These have been referred to (p. 71,) as shifting alternately to the north and the south through their course. Three parallel lines of ranges, with a similar E. S. E. bearing, occur farther south, towards the Sheet lot, the most considerable of which commences on the west in the Pole range and extends with some interruptions to the diggings at the south end of Benton village (4g.)

These at their commencement on the west bear E. N. K, and then E. 9. E. in a direct Ine towards the ranges at Swindler's ridge.

Series 5 commences on Fever river near the junction of the east fork (in Illinois,) and extends north-westerly to the south-west point of the Vinegar Hill Diggings, and then north-easterly again to Fever river at Buncomb, forming a well marked curve. This part of the series is marked throughout by a succession of groups advancing west to Vinegar Hill and then receding east to Buncomb, almost uninterrupted in the latter direction, forming there the main body of the series (5a,) already referred to as showing the direction of bodies of mineral obliquely crossing the bearing of the ranges (p. 70.) It is also characterized throughout the greater part if not the whole of its extent by groups of North and Souths bordering the groups of East and Wests on the east vor west. This arrangement is remarkable as the North and Souths border the East and Wests alternately in pairs on the seast and the west; quartering ranges, in a corresponding direction, at the same time marking the shifts of the North and Souths. At Buncomb, the series divides; the most connected a portion (56) extending north, up Bull Branch, towards the east point of the body of mineral crossing the south part of the Hazel Green Diggings; the other (5c) shifting to the east to the west side of Coon Branch, and then continued north through W. Gillet's diggings to the diggings at Shaw's Hollow, where it approaches the east point of Langworthy's Diggings, above noticed. From this point the series is continued easterly to the New Diggings (5d.) In this series, at Buncomb, are two important flat and pitching dry-bone (zinc) mines; one (Coxe's) on the west side of Bull Branch; the other (Gillet's) on the east side of Fever river, opposite the north-east point of the main body of the series just mentioned. The bearing of the ranges in this main body is north of east (E. 89 N.;) that on Coon Branch, south of east (E. 5° S.;) and this bearing is continued in a few groups of diggings between Coon Branch and Fever river leading from the diggings at Shaw's Hollow to the New Diggings, and throughout the latter, which terminate the series on the north-east.The series is most largely developed in the main body on the south-west and in the New Diggings, and

even more largely in the latter than in the former. Between the New Diggings and the south point of series 3, there is a large group of East and Wests (the Democrat Diggings, 5e,) between Fever river and the Shullsburg branch, in which the bearing of the ranges is E. 10° S., and in nearly the same East-West line, farther east, is the great Dowd and Maginnis range, with several accompanying East and West ranges, (5f) limited on the east by a large North and South (the Ellis range.)

The E: S. E. direction of the ranges at Benton is again resumed on the north side of the Shullsburg branch, east of the south part of series 3, in Earnest and Spenceley's Diggings (6a,) in the lower bed of the upper magnesian. This E. S. E. series (6) is continned in the Shullsburg Dry-bone Diggings (66,) in the same bed, and then shifting south across the branch to Townsend's Diggings (6c,) is farther continued, with little interruption, through the main body of the Shullsburg Diggings (6d,) terminated on the east by numerous North and Souths traversed by a few East and Wests. The diggings in the east part of the series, south of the branch, are in the upper and middle beds of the upper magnesian. They commence, on the west, in large North and Souths, at Townsend's Diggings, which are apparently in the line of the large North and Souths at the East Blackleg Diggings, as already noticed. Then occurs an extensive group of East and Wests, crossed by many North and Souths, some of them extensive, followed by the diggings on the south of Shullsburg village, beyond which are the North and Souths terminating the series. The diggings south of the village have been worked extensively by draining in the middle (flint) bed of the upper magnesian, and have been among the most productive in the whole mineral district. North of the west part of the diggings at Shullsburg village, the Irish Diggings (6e) extend from the Shullsburg branch in a series of groups of North and Souths, crossed by a few East and Wests towards the south, successively shifted to the east or to the west, and continued across the summit between the waters of Fever river and the Pecatonica to a group of East and Wests at

Stump Grove, as already noticed. East of the series 6, there are only a few small detached diggings which I have not yet visited.

The next series (7) is of less importance from the extent of the diggings, but is arranged conformably to the prevailing order. I have already noticed its connexion with the east part of series 2. Skidmore's Diggings (7a,) the first towards the west, consists of an extensive North and South range or group of ranges, connect ed with a few small East and West ranges. Next in the series, are two small groups of North and Souths at the head of a branch of the W. Pecatonica, north of Centre, and then two small groups of East and Wests (Halstead's and Read's,) lower down the branch. The line of the series passes by Darlington, and after a long interval the series is resumed in Whiteside's Diggings (76,) a group of East and Wests crossed towards the west by several North and Souths. There is then an interruption in a south-east direction to the Wiota Diggings (7 o,) where two extensive lines of East and Wests are closely connected by North and South and quartering ranges. The bearing of the body of mineral is there to the south east, while the quartering ranges bear north easterly.

The next series (8) commences on the west in the Forked-Deer Diggings, west of the West Pecatonica. In these diggings, there are at least four parallel lines of East and West ranges, included between Wood's branch on the south, and Bonner's branch on the north. In the south line (86,) along Wood's branch, the diggings are in the blue limestone; in the other lines (8c,) in the middle and lower beds of the upper magnesian. The general bearing in these diggings is E. S. E. King's Diggings (8a,) on the south side of Wood's branch near the W. Pecatonica, are more detached, and less regular in their bearing; presenting two groups of E. N. E. ranges, one on the north, the other on the south, connected by S. S. E. ranges. The series is continued E. N. E. in the Duke's Prairie Diggings (8d,) only a few small and detached diggings intervening, such as Pillins', on the east side of the W. Pecatonica, opposite Bonner's branch, and Scott's, on Otter creek, nearly east of King's Diggings; both in the lower

bed of the upper magnesian. The diggings at Duke's Prairie present two principal lines of East and Wests, receding east towards the north, north-east of which, 1-2 miles distant, are two other lines of East and Wests (White's and Graham's,) apparently receding east towards the south. The series is still farther continued, nearly east from the latter, in the Yellow Stone Diggings, which extend in a general direction nearly east and west, 5-6 miles, from the Yellow-Stone branch to the E. Pecatonica. This line of diggings may be divided into three sections; one on the west 8e,) along the north side of the Yellow Stone, bearing nearly east and west; another extending south-easterly, along the southwest side of McClintock's branch; and a third (8) bearing nearly east and west from McClintock's branch to the E. Pecatonica. The course of the series farther east is marked only by a few detached diggings, at first bearing more east and west, and then more south-easterly to the diggings north and east of Monroe. The line first shifts to the north to the North Grove Diggings, west of the E. Pecatonica, then to the south to Biggs' Diggings, and again to the north to the Badger Diggings, when it takes a south-easterly direction by the Aspen Grove Mine(8g,) Skinner's Diggings and others of less note to a point east of Monroe. South of this line is a short detached series of three groups, east of Argyle, including H. and J. Scott's Diggings, but apparently in the general line of series 7.

The last series (9) I have only partially traced at its commencément on the south west in the Mineral Point Diggings. These present a series of East and West ranges, more or less grouped, extending from the West Pecatonica across the Mineral Point branch to Rocky Branch, and forming a body of mineral bearing N. N. Easterly towards the diggings at and west of Dodgeville. The general bearing of the ranges is E. S. E. (E. 20° S.) A part at least of the ranges in these diggings are lead-bearing on the west and copper-bearing on the east; the general body of mine eral being thus divided, in the direction of its bearing, into two parallel sections. I have not yet traced this series farther north than