iS93] 37 [Upham. 
About four rods north of Meacliam Street, opposite Brooks 
Street, S. 45° to 50° E. ; and again ten rods to the oast from this 
pLace, S. 45° E. 
South edge of quarry close west of Dunning Brothers' coal 
wharf, S. 60° E. ; three rods northwest of this quarry, S. 50° E. ; 
and about ten feet farther north, S. 30° E. 
Beside Mystic Avenue and river close east of the Medford line, 
S. 40° E. 
On ledges at south edge of marsh, about thirty rods west of the 
last, S. 50° to 60° E. 
Northeast line of Joseph Street, Medford, between Leyden and 
Sanger Streets, S. 45° E. 
Corner of Joseph and Sanger Streets, S. 75° to 80° E. 
Northwest line of Sanger Street, about ten rods southwest from 
the last, S. 35° to 40° E. 
Corner of Main and Dexter Streets, S. 25° E. 
Vicinity of Lowell, Beech, and Cedar Streets. 
Near the corner of Lowell Street and Somerville Avenue, 
about six rods east of the Fire Department engine house, S. 5° 
W. to S. 30° E. ; about eight rods north of this, S. 60° to 75° E. ; 
about four rods northwest of the last, S. 5° E. to S. 40° E. and 
S. 70° E., intersecting; and ten feet farther northwest, only 
S. 5° E., which was probably the earliest of these courses. 
Lowell Street, about forty rods north of the engine house, 
S. 20° E. 
Near the angle of Beech Street, mainly S. 15° E. ; also, inter- 
secting, S. to S. 20° E. 
Lexington branch of the Boston and Lowell Railroad, al>out 
fifteen rods east of Cedar Street, S. 70° E. 
Near Willoiv Avenue. 
Between Willow Avenue and Arnold Street, on the southwest- 
ern part of the large outcrop of diabase, S. 25° to 30° E., crossed 
by other striae, S. 50° E. The scratches and furrows of both sets 
are abundant and neai-ly straight, many of each being from a six- 
teenth to a quarter of an inch deep. 
The portion of this ledge twenty to thirty feet north of the 
foregoing is striated uniformly S. 30° E. 
