98 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
Soapstone is frequently found associated with the serpentine, occa- 
sionally in the same outcrop, but more often as a separate occurrence 
near by. Such areas of soapstone or steatite are even more com- 
mon than those of serpentine, and in some instances, when rela- 
tively free from impurities, they are mined for talc. In form, and in 
their relation to the surrounding rocks, these are very similar to the 
serpentine. In the southern part of the State, the serpentine is often 
associated with amphibolit^, a probable continuation of the amphibo- 
lite of western INIassachusetts. Further north, chlorite schist takes 
the place of amphibolite. 
Occurrences. 
A description of each occurrence of serpentine would involve much 
repetition, as they are all very similar and vary only in size and 
details. They are therefore merely listed, beginning at the southern 
end, with a statement of the intervening distance, their location, and 
where possible their size. The most typical area, that of Waterbury, 
is described in detail as an example of what is to be found in the others. 
1. Dover. On the town line between Dover and Newfane, the 
most southern area in the State. About two miles long. 
2. South Windham. About twelve miles north-northeast of the 
last area, and about two miles west of the southeast corner of the town. 
Length, one fourth of a mile. 
3. North Windham. About four and a half miles north of the 
South Windham area, and one mile north of the village. Length 
indefinite but small. 
4. Cavendish. About thirteen miles north of North Windham, on 
the western boundary of the town, just south of the Black River. 
Length indefinite but probably large. 
5. Cavendish. About one fourth of a mile northeast of the last, 
on the north side of the river. Length indefinite, about one half mile 
wide. 
6. Ludlow. Directly west of the last and on the Ludlow-Caven- 
dish boundary. Length, about one half mile. 
7. Phjmouth. Eight miles north of the Ludlow area at Plymouth 
Five Corners. Only seen on a section on the brook. 
8. Rochester. Twenty-five miles north of Plymouth Five Corners. 
About one fourth of a mile north of Eastern Talc Co.'s mine. Length, 
200 yds. 
