IS93-] 
39 [Upham. 
Clarendon Hill. 
At the top of the rock hill quarried by the Somerville street 
department and hence known as the "City Quarry," S. 30° E. 
In a hollow of this rock outcrop, between the last and another 
summit ten rods farther north, about twenty feet below these 
summits, S. 10° E. and S. 25° E., intersecting; about twenty 
feet southeast from the last, S. 35° E. and S. 65° E., likewise 
intersecting ; and again, about forty feet farther southeast, the 
prevailing and almost sole course on a well-striated surface five 
feet square is S. 20° E., but two definite glacial striae on the same 
surface bear S. 5° E. 
Twenty-five feet still farther southeast in the same hollow, 
striae bear S. 25° E. ; about thirty feet north of the last, N. G0° 
to 65° E. ; and four feet east of the last, where striae are next 
seen, N. 70° E. 
On the northeastern slope of this rock hill, opi)Osite Packard 
Street, S. 35° E. 
Moore Street, S. 20° to 25° E. 
Clarendon Avenue, east border of E. S. Sparrow's^ quarry^ 
conmionly S. 20° to 30° E. ; but in one place, S. 10° to 15° 
E., crossed by other striae, S. 20° W. The striae bearing S. 
20° W. are numerous and all straight, one to three inches long, 
covering some small surfaces, and elsewhere intersecting the 
more eastward courses. 
West border of Cambridge Stone Company's quarry, near Endi- 
cott Avenue, due S. ; about four rods farther southwest, S. 25° 
W. ; and seven feet east of the last, S. 10° E. and S. 25° W.. 
intersecting. 
South side of Collerie 11 ill. 
Near the Artificial pond, in several places, respectively, S. 35°, 
40°, and 45° E. 
Close south of Professors' Row, several places, S. 30° to 35° E. 
Between Packard and Curtis Streets, S. 25° to 30° E. 
Raymond Avenue, S. lb'' to 30° E., intersecting; but in other 
places here, nearly all S. 25° E. 
Corner of Conwell Avenue and Curtis Street, S. 35° E. 
An insi)ection of these notes shows that the prevailing courses 
Qf the glacial striae in Somerville bear S 20° to 30° E. ; and 
