After some months further shipments were made, and in all cases the trials made with these were superintended by the introducer of dualin, and, in every case but one, were reported failures, and rejected. In the case in which a success was reported, a small parcel only was brought along, and exploded side by side with Nitro-Glycerin; that is, four holes were charged with dualin, and four other holes nearly parallel with them were charged with Nitro-Glycerin. The enlargement was brought down, but whether the work was principally done with Nitro-Glycerin, and only partially by the dualin, was left to conjecture. The foreman of the drillers asserted that the side charged with dualin was seamy, whilst the side containing the Nitro-Glycerin was solid, and without any seam. However, it was claimed by the inventor that dualin was now a success, and a further trial, viz.: the sixth, was undertaken, and 1,500 lbs. of dualin brought on the ground, about the 26th of November, 1870. On Tuesday, the 28th, the experiments under the supervision of Mr. Dittmar commenced, and were continued on the 29th and 30th, but they demonstrated beyond cavil, there being no Nitro-Glycerin fired at the same time to assist them, that dualin was of “no account,” not one single hole having been “bottomed,” and, again, the dualin left over from this experiment, 1,300 lbs., was thrown out, as utterly unable to effect the blasting results obtained by the Nitro-Glycerin it was brought to supersede. Four hundred pounds of this was ordered to the Central shaft, but the results at the East End being so conclusive, it was consigned, like all the previous shipments, to the tomb of the Capulets, and was subsequently used up for trimming, in lieu of powder.