Harris had been much interested in gynaecology, but now began to make a special study of urology. At a meeting of the Australasian medical congress held in Dunedin, New Zealand, in March 1927 he read a paper in which he described a new method of prostatectomy. It was at first condemned in England, but gradually gained favour in Australia, and in 1935 Harris visited Europe determined to demonstrate the advantages of his method.
Harris had been deeply intrigued by gynaecology, but now concentrated his attention on urology. At the Australasian medical congress in Dunedin, New Zealand, in March 1927, he presented a paper describing a new prostate surgery method. Initially opposed in England, it eventually gained favor in Australia and, by 1935, Harris traveled to Europe to promote its merits.