The fight was now on in good earnest, and the Spaniards on the hills were engaged in heavy volley firing. The Mauser bullets drove in sheets through the trees and the tall jungle grass, making a peculiar whirring or rustling sound; some of the bullets seemed to pop in the air, so that we thought they were explosive; and, indeed, many of those which were coated with brass did explode, in the sense that the brass coat was ripped off, making a thin plate of hard metal with a jagged edge, which inflicted a ghastly wound. These bullets were shot from a .45-calibre rifle carrying smokeless powder, which was much used by the guerillas and irregular Spanish troops. The Mauser bullets themselves made a small clean hole, with the result that the wound healed in a most astonishing manner. One or two of our men who were shot in the head had the skull blown open, but elsewhere the wounds from the minute steel-coated bullet, with its very high velocity, were certainly nothing like as serious as those made by the old large-calibre, low-power rifle. If a man was shot through the heart, spine, or brain he was, of course, killed instantly; but very few of the wounded died-----even under the appalling conditions which prevailed, owing to the lack of attendance and supplies in the field-hospitals with the army.
        
While we were lying in reserve we were suffering nearly as much as afterward when we charged. I think that the bulk of the Spanish fire was practically unaimed, or at least not aimed at any particular man, and only occasionally at a particular body of men; but they swept the whole field of battle up to the edge of the river, and man after man in our ranks fell dead or wounded,...