When Mr. F.L. Cardozo, Sr., was appointed to the principalship of the high school, the standard of scholarship required of the principals was certainly maintained. For he had the rare distinction of being educated at Glasgow University, Glasgow, Scotland. There he won two scholarships of $1,000 each in Greek and Latin. He also took a course in the London School of Theology, London, England, where he completed the three-year course in two years. He was once pastor of the Tremont Street Congregational Church, New Haven, Connecticut. Later he went to Charleston, South Carolina, where he engaged in missionary work in the employ of the American Board of Missions. Mr. Cardozo founded the Avery Institute in Charleston, and served as its principal until he became Treasurer of the State of South Carolina, in 1870. Under Governor Chamberlain he was Secretary of State for two terms.[353] At that time there were 172 pupils in the school, but by 1886 the enrollment was 247, which was more than five times what it was when the school was established. In 1887-88, when the enrollment was 361, there were nine teachers, exclusive of the instructors in music and drawing. There was an increase of two teachers in 1888-89. From 1877 to 1894 the high school course consisted of three years' work. But in 1894 the course was enriched and enlarged by the addition of several electives and since then it has been lengthened to four years. The commercial department was established in 1884-85 and in 1887 a business course requiring two years of study was added. This with a technical course also requiring two years of study laid the foundation of the Armstrong Manual Training School. Girls were given an opportunity of taking up domestic science and boys military drill.[354] Referring to the school in 1889-90 Superintendent Cook said: "This school is growing, not only in number but in a condition to perform better and more useful work. In the practical importance of subjects taught and in their better and increasing provision for preparing pupils for business life there is recognition of the fact that practical usefulness is the great end of intellectual discipline."[355] It was during Mr. Cardozo's administration that the high school was moved from the Miner building to a new structure in 1891. So far back as 1874 Mr. Cook urged the construction of a suitable building for the high school. But it was not until 1889-90 that an appropriation therefor was made.[356] This building, known as the M Street High School, was erected on M Street, near the intersection of New York and New Jersey Avenues, where the institution remained until it moved into the Dunbar.