Farmington

1890

1:125k

Hartford Co. S.

1893

D.H. Hurd & Co.

1:72k

Hartford Co. N.

1893

D.H. Hurd & Co.

1:72k

2. Soil Map, Springfield Sheet, Massachusetts and Connecticut.

1903

Fippin, E.O.

1:63k

Hartford

1889

1:63k

10. Granby sheet.

1893

Geological Survey (U.S.)

1:63k

11. Hartford sheet.

1893

Geological Survey (U.S.)

1:63k

Manual of Geology: treating of the principles of the science with special reference to American geological history ... Revised edition

1864

DANA, James Dwight.

18. Meriden sheet.

1893

Geological Survey (U.S.)

1:63k

19. Middletown sheet.

1893

Geological Survey (U.S.)

1:63k