Films like this must have been starting to feel a bit stale even as early as 1904. The quality of the print I saw was pretty poor, and much of what was taking place early on was difficult to take place. The highlight comes about half-way through when Edison's camera captures an explosion. It's pretty tame stuff by todays standards, but probably looked quite spectacular back then. After this we see a gigantic digger moving earth from a quarry. That was about all that I could make out, and for the most part it was fairly undramatic stuff. With the advent of films with a narrative following the release of Porter's Great Train Robbery the year before it wouldn't be long before short actualities like this became a thing of the past.