Hoosac Tunnel

1. Blasting with Nitro-Glycerin at the Hoosac Tunnel. In: Scientific American, v. 20, n. 2 (9 Januar 1869), S. 27-28.

   https://doi.org/10.1038/scientificamerican01091869-27b

2. Blasting with nitro-glycerine at the hoosac tunnel. In: Journal of The Franklin Institute, v. 86, n. 6 (Dezember 1868), S. 377-381.

   https://doi.org/10.1016/0016-0032(68)90419-5

3. Central Shaft of the Hoosac Tunnel. In: Scientific American, v. 24, n. 12 (18 März 1871), S. 184.

   https://doi.org/10.1038/scientificamerican03181871-184

4. Central Shaft—Hoosac Tunnel. In: Scientific American, v. 23, n. 18 (29 Oktober 1870), S. 279.

   https://doi.org/10.1038/scientificamerican10291870-279

5. Completion of the Hoosac Tunnel. In: Scientific American, v. 29, n. 24 (13 Dezember 1873), S. 372.

   https://doi.org/10.1038/scientificamerican12131873-372a