| Views | |
| The falls of Niagara and their retrograde movement / | 380 |
| December 2012 | January 2013 | February 2013 | March 2013 | April 2013 | May 2013 | June 2013 | |
| The falls of Niagara and their retrograde movement / | 19 | 25 | 15 | 17 | 15 | 21 | 11 |
| Views | |
| fallsofniagarath00desouoft.pdf | 287 |
| fallsofniagarath00desouoft.pdf.txt | 7 |
| fallsofniagarath00desouoft.pdf.txt | 2 |
| Views | |
| Canada | 213 |
| Germany | 2 |
| Japan | 1 |
| United States of America | 1 |
| Views | |
| Saint Catharines | 213 |
| Brunswick | 2 |
| Seattle | 1 |