Constructing sec.B under Summer St. looking easterly 74-76 Summer St. 76-78 Summer Street, Boston, Mass. 161 Summer Street, Boston, Mass. N.w. corner of Dorchester Ave. and W. Fourth St. 12"x12"x30" blocks before testing showing types of rods used Bonding tests 4 test blocks Bonding tests Bonding tests Bonding tests Bonding tests Bonding tests Bonding tests Bonding tests Bonding tests Bonding tests Bonding tests Bonding tests Bonding tests Bonding tests Bonding tests Test plates Test plates Test plates Concrete tests Test pots Test pots Test pots Tests Edges 4+5 Edges of 15 and 16 Briguettes Bricks, side views Cement testing laboratory, Cypher St. yard Elevated posts Dewey Square, Boston, Mass. Construction sec.C excavation in front of Regal Shoe So. Construction sec.C Summer W. of Church Dorchester Tunnel buildings Dewey Sq. Sec.C Summer St. depression at High St. looking easterly Bonding tests Bonding tests, 1" diamond bars, before testing Pattern shop Cypher St. Bonding tests Bonding tests Bonding tests Bonding tests, 1" slick bar splice before testing Cypher St. Yard, s.e. end Hunt - Spiller Manufacturing Corp. Part of Kennedy's Hawley Street side, Boston, Mass.