Why didn't you pick Rowbotham's? He detailed everything in Earth Not a Globe. Its far more comprehensive?
You picked this one because you could FUD all over it. 
ENaG Experiment 1 was done in the afternoon of a summer's day, when the air nearest the cool water is colder and thereby denser, making refraction a serious problem in any optical experiment. As has been stated previously, a gradient of only .11 C per meter would cause light to perfectly match the curvature of the Earth.
It also lacks any diagrams of what was observed.
ENaG Experiment 2 doesn't even appear to have been done. It just mentions what could be done, and that the RE expectation wouldn't be seen if it did exist. It goes on to further explain how a boat seemingly vanished for a moment before reappearing--impossible on either round or flat Earth unless there was some serious refraction happening.
ENaG Experiment 3 has no diagrams of what was observed, but is astonishingly similar to Wallace and Hampden's experiment. In those diagrams it is apparent that the round-Earth model is visible, not the flat-earth one.
ENaG Experiment 4 appears to be leveling a theodolite at various points across the water at sticks. This would be interesting if you just had a string of spirit-levels, as if there was a curve you'd see the farthest spirit levels tilting downward. Instead they're just sticks, and only show that a theodolite, when leveled, is parallel to the water beneath it.
Again, there are no diagrams as to what was seen.
ENaG Experiment 5 was taken extremely close to the surface of the water, dramatically increasing the chances that its observations were marred by refraction.
There are still no diagrams to show what was seen.
ENaG Experiment 6 is extremely clever in everything except the fact that a leveled theodolite wouldn't, as Figure 15 suggests, look directly at the opposite pier. As was shown in the previous experiment, it's parallel to the water directly beneath the theodolite, so the idea that the ship's mast is constantly beneath the horizontal is expected.
Still no diagrams.
ENaG Experiment 7 requires the eye to be able to distinguish at sea level the arc of the Earth, which is impossible.
ENaG Experiment 8 requires the same thing, but for an even smaller field of view (that through a theodolite).
ENaG Experiment 9 involves viewing across fast distances of oceans and that only sometimes are the lighthouses visible from extreme distances implying that refraction is to blame, as if only if the observations were consistent would that not be the case.
So, back to why I chose Wallaces, it was because he was high enough to avoid most refraction effects caused by the water; because his referees drew diagrams as to what they saw; because all parties involved agreed prior to the experiment that it would provide results one way or another.