in the vicinity of Great Barrington, Mass. 275 
rock, all the way to Rutland 80 miles from Pittsfield, and 20 
miles beyond, is the same limestone. The evidence consists 
terruptions the quartzite continues to accompany the limestone, 
especially along its eastern border, just as in Berkshire, and 
that it undergoes the same transitions to mica schist, mica slate 
or hydromica slate, along its course; and, further, that the 
mica slate accompanying the limestone, especially along its 
western border, is very similar throughout. That the evidence 
should be conclusive, the actual continuation of the limestone 
through, from Pittsfield northward, should be ascertained, and 
also the stratigraphical relations of the quartzite to the adjoin- 
ing limestone. What is.now known is sufficient to render the 
conclusion exceedingly probable. If so, the age of the lime- 
stone at Rutland and other parts of Vermont is approximately 
that of the rock in Berkshire and farther south. 
I have referred to the facts with regard to Chazy fossils 
found in the Rutland limestone by the Rev. A. Wing. As the 
facts are of the highest importance, the paragraphs may be here 
cited. (This Journal, vol. iv, 188, 1872.) Mr. Billings says— 
I received last summer some fossils from Rev. A. Wing, and 
: quarry,—the most northern one worked on the southwest 
side of the valley, say one hundred and fifty rods southwest from 
Barns’ hotel, West Rutland.” : 
This is the description of the locality given by Mr. Wing.. My 
That all the facts may be before the reader, I quote a page 
(bp. 418, 419) from the Vermont Geological Report on other 
Ossils from the same limestone. 
Although the Eolian limestone is largely distributed in our 
route =A fossils have tae found in it, saben the few which 
occur in Vermont. We have found the following genera, to which 
Specific names cannot yet be attached: Huomph lus, Zaphreniis, 
