Thus, following the west border of the first series, it will be found to bear north-easterly from the Muddy Diggings (1 a) to the North Diggings (1 b,) and then east to the south-west point of the Beetown Diggings, which first present a large group of East and West ranges (the Muscolunge Diggings, 1 c,) extending northerly along the east side of Rattlesnake creek. This is marked towards the north by a line of quarterings, bearing north-easterly, at Brown's range, indicating a recession to the north-east. On the south, this group is connected with a group farther east (the Nip and Tuck Diggings, 1 d,) in which numerous North and Souths are com bined with fewer East and Wests, marking a similar direction to the north. Next succeeds the main body of mineral in this series (the proper Beetown Diggings, 1 e,) in the ridge between the Beetown branch and Grant river, and in a position, on the whole, farther north than the two latter groups. The bearing of this is south-easterly; the more northern ranges extending farther west, and the more southern farther east, and this bearing is further marked by quarterings and North and Souths, bearing in the same general direction. A detached group (Haslett's Diggings, 1f) N. N. E. of the north-west point of the proper Beetown Diggings, forms the northern limit of this series, and is apparently continued E. S. Easterly in a small group of diggings on the east side of Grant river.f

The series 2 also presents a similar succession of groups. The South Potosi Diggings (2 a,) commencing on the east bank of Grant river, near its mouth, extend N. N. E. along the east side of Rigby hollow to the summit between Potosi (Snake) hollow and the waters of the Platte, and from this line bear E. S. Easterly, extending much farther east towards the north than towards the south; the group forming a curve, analogous to that of the entire series, directed towards the Patch and Upper Menominee Diggings. After a considerable interval, another group (Craig's

*The ranges called North and Souths have here a N. W.-S. E. bearing.

+ This last group probably forms a connexion between the Beetown and Pigeon Dig. gings.

Diggings, 2 b) commences at Buenavista, where it is marked on the west by a line of North and Souths, bearing around from S. S. E. on the south to N. N. E. on the north, and limiting the East and Wests in this group on the west. The south-east border of this group is also marked by North and Souths bearing N. N. Easterly. This is followed by a series of groups successively receding to the east towards the north (Coyle's, Rockville, Pinhook and Red Dog Diggings,) the last of which (2 c) terminates on the east in a bluff on the west side of the Big Platte. This last group is particularly marked by quartering crevices, indicating a change in the direction of the series to the east. In the interval from the Red Dog Diggings to the Platteville Diggings, only two considerable groups, the Brushhill and Whig Diggings (2 d-2.e,) bearing nearly east and west, mark the course of the series. The Platteville Diggings (2 g) then form an extensive body of mineral, bearing north-easterly from the South-West Diggings (2 ƒ) through the line of diggings along the south side of Platteville village, including the three ranges on the Galena road already noticed, to two large groups north of the village, successively receding east. A line of ranges, east of the village, also bears north-easterly from the east point of the group south of the village, extending east, at its north-east point, in a projection crossed by North and Souths. The series is then continued in a direction E. S. E. from the group south of the village, through the South-East Platteville Diggings (2 h) to the north-west point of the Elk Grove Diggings (22) at J.. Phillips' farm. The principal groups in the Elk Grove Diggings. extend N. N. E. from their south-west point at Hutchinson's Diggings, along the west side of the west branch of Fever river to their north-west point above indicated, and then bear E. S. Easterly to the North Diggings near the Elk Grove and Mineral Point road. A few more isolated ranges lie south of the latter towards Elk Grove village. Farther in the same E. S. E. direction, is a large detached group (the Strawberry Diggings, 2j,) on the east side of the east branch of Fever river, also extending N. N. E.; marked, on the south, by a remarkable change in the direction of

the ranges from a south-east to an E. S. E. bearing (that of the ranges in the main body of the group towards the north.) East of this group, there is a wide interval in which no ranges have been discovered. The series 7 commences at Skidmore's Diggings nearly east from the south point of the Strawberry Diggings, and in the direct interval between these, traces of mineral have been discovered at the Light-House tavern, on the Platteville and Shullsburg road, perhaps indicating the passage of ranges along that line.

The next series (3) commences on the south with a very extensive group (the Fairplay Diggings,) extending, along its western border, from its S. W. point near the State line, in a N. N. E direction, with a series of recessions to the east, most strongly marked towards the north. This may be divided into two subordinate groups, separated by the east and west hollow at Fairplay village. The South group is divided into two parallel series, bearing northerly, in which the ranges generally correspond, but separated by an interval in which most of the ranges are apparently interrupted or have not been followed. The ranges, however, are more connected towards the north; the two series uniting in the ridge south of Fairplay village. The western series (3a,) along the east side of the Fairplay branch, was discovered and worked five years before the other, along the west side of the Sinsinawa Mound at the Jamestown Mine.* The most northern ranges and the most southern in the eastern series (36). extend or at least have been worked much farther east than the intermediate ranges. The Northern group (3c) projects slightly to the west at its S. W. point, and then recedes to the east, at first more slightly in a number of extensive ranges, and then largely towards the north, where it forms a subordinate group of less extent from east to west, and terminates in a detached range on A. Taylor's farm. From this point the series projects to the N. W.; its course in that direction being marked by three successive groups of East and Wests, crossed by N. West quartering ranges *The diggings in the West series were struck in 1841-2; those in the East, in 1846-7,

leading towards the west point of the Upper Menominee Diggings. Of these groups, the second (the Lower Menominee Diggings, 3d) is the most considerable. The Upper Menominee (Jamestown) Diggings (3e,) present a series of East and Wests (bearing E. S. E.,) the most southern commencing farthest west, and the more northern receding successively to the east in groups overlapping each other more or less, the bearing of the whole body of mineral being E. N. E. On comparing the series subordinate to series 3 on the east, the first group will be found S. S. E. from the S. E. point of the Fairplay Diggings; the second, east of that point; the next (Turner's,) nearly east of the subordinate group at the N. E. point of the Fairplay Diggings; the next (Findley's,) nearly east of the Lower Menominee Diggings; and the last (at the source of the east fork of the Sinsinawa,) E. N. E. of the east point of the Upper Menominee Diggings and south of the Patch Diggings. The Patch Diggings (3f,) the next in succession to the Upper Menominee Diggings, lie considerably to the N. E. of the latter, in a direction towards the Platteville Diggings, and occupy an intermediate position between them. They consist chiefly of a main body of East and Wests, crossed on the west and east by groups of North and Souths, which serve to mark the limits in those directions. In the interval between the Patch Diggings and the Buzzard's Roost Diggings, in an E. S. E. direc tion, I have observed only a small group, a little S. E. of the forks of the Platteville and Elk Grove roads. The Buzzard's Roost Diggings (3g,) are the commencement of a series of diggings (3h,) already mentioned, bearing south-easterly across Fever river to. the Shullsburg branch. These diggings are in the lower bed of the upper magnesian and in the blue limestone, principally in the former. They include those along the west side of Fever river to the Missouri branch near Benton, and those between Fever river and the Shullsburg branch to the Benton and Shullsburg road. This is the only instance I have yet observed of such a S. E. direction of the leading ranges. That this direction is not derived from the strata in which the diggings are situated is shown by the

different direction of the ranges in the same strata both at Mineral Point and in the immediate vicinity in the dry-bone diggings west of Shullsburg. The Lower Galena Diggings, in the forks of Fever river and the Mississippi, S. W. of Galena, are in a S. S. E. direction from the Fairplay Diggings (conformably to the arrange ment observed in series 4 and 5,) but I have not yet traced a direct connexion between them.

Series 4 may be considered as commencing in the Upper Galena Diggings, on the west side of Fever river, adjoining Galena on the N. E. It extends north-westerly from these by Comstock's Diggings to the Camp Ground, west of the Galena and Mineral Point road, whence it bears northerly, west of that road, to the 8. W. point of the Hazel Green Diggings, in a series of North and Souths (4a,) combined with East and Wests, particularly towards the south. West of this line of North and Souths are several groups, chiefly of East and Wests, extending towards the Sinsinawa river. The Hazel Green Diggings commencé near the north point of the line of North and Souths, just mentioned, in the remarkable body of mineral (4 6) traversing them in an E. N. E. direction, already referred to. This presents a series of eight groups, shifting successively to the north, or to the left, and extending about two miles, in an almost uninterrupted series, from the S. W. corner of the diggings to Bull Branch, on their eastern border. Two large groups of North and Souths (the northern known as the Phelps lot,) with East and Wests intervening, extend north from the fourth group to a detached group of East and Wests, nearly west of the eighth group. North of the S. W. point of this body of mineral, a large group of East and Wests (the Purdy lot, 4 c) projects to the west, and not far N. E. of this a series of North and Souths commences and extends first along the west border of the main body of the diggings to Culver's group, bearing N. N. E., then. crosses towards the east side of the diggings (at 4d,) and is there continued to their northern border, first bearing N. N. E. and then more directly north. East of this line of North and Souths, before its shift to the east, different groups of East and Wests