The following letter from Alexander Bruce, Esq , to the honorable Minister for Lands, New South Wales, lias been handed to us for publication ■ — " Ten Mile Creek, 14th March, 1893. "Sir, — Tteferring to the report dated 21st January last, which I had the honor to foi ward to you, proposing a cure for the eiceisive swellings and indurated gather ing* which not nnfrequently follow the inoculation of cattle for pleuro-pneumoma, I have now to state the result of some additional experiments lately made by me for the purpose of testing, the accuracy of the conclu sions arrived at, and the efficacy of the treatment re commended in that report, and to inform you that on both these points the result of my later expeiiments entnely correspond with those already repoited by me. "Thus, on the 6th and 7th January last, nine hun dred and fifty head of weaners weie inoculated in this neighbourhood in what is now found to be an expedi tious', safe, and efficacious manner, namely, by shedding the hair on the tail, near the tip, making a longitudinal incision in the lower part thus laid bare with a pen knife, just through the skin, and putting in this m , oision a drop of virus, which the operator mbbed well into the wound with the back of his knife. Out of this lot of cattle, in the course of from ten to thirty days, symptoms of a more or less dangoious chaiarter appeared on thirty-five head, which is now considered a large per centage of dangerous cases, and was in this instance accounted for through the incisions in the tail having in many cases been made too deep. " When inoculated it had been arranged that the cattle should be carefully watched by the men tailing them, and brought to me on the very ftist appearance of ■welling at the root of the tail or in the hind quarteis. 