Following this, now friends, Jack and Lord Rutherford applied to use a basement room to carry out electrical experiments. Here Jack investigated the magnetic screening of high-frequency oscillations by various metals, an offshoot of Lord Rutherford's pioneering work.
This experimental work gained Jack an MA with double first-class honours in experimental science and in mathematics and mathematical physics.
Now a published researcher, Jack spent some time teaching mathematics, before leaving the shores of New Zealand in 1896 to travel to Germany on an Exhibition of 1851 Scholarship - initially choosing to study at the Frederick-William University of Berlin.
An enduring friendship, Lord Rutherford and Jack holidayed in Germany in 1897, while Jack was at the University of Leipzig where he published papers on magnetic screening and on dielectric constants of liquids at high frequencies in German.
A man of many talents, in 1899 Jack’s adventures took him to University College in London where he translated German works into English. Following this, Jack returned to his humble Southland beginnings. On his return the only work Jack could find in Invercargill was as a boiler stoker and it wasn’t long until he enrolled in mechanical engineering courses at Canterbury College.
First-class certificates in strengths of materials, advanced steam, applied mechanics, and the mechanics of machinery launched Jack into his career in industry. First for the General Electric Company in the United States, then as an electrical engineer for the Sulphide Corporation in Australia, and for General Electric in Australia.
After 1920, Jack worked as a private consultant. Never a man to be idle, in fact, he played the stock market with great success. His deeply analytical business brain ensured his great success, and although he made a lot of money, his thriftiness, exemplified by his father shone through – he was known to report to his stock market friends when he found even cheaper places to lunch.
Jack Erskine died in Melbourne on 27 April 1960 leaving the bequest to the University of Canterbury which launched the Erskine Fellowship, the largest academic mobility fund in Australasia.