Gonville and Caius College (Caius is called _Keys_ by the students) is next. It was founded by Edmund de Gonville in 1348. He proceeded to erect buildings, but did not live to carry his design into full execution; he, however, left money for their completion. In 1557 John Caius, M. D., physician to Queen Mary, endowed the college largely, and, having procured a charter of incorporation, it took his name. Dr. Caius was master of his college from 1559 till within a few weeks of his death in 1573. There are in the college grounds three gates, which lead to as many of the courts. One, erected by the Doctor in 1565, has the Latin inscription over it, HUMILITATIS, meaning, this is the gate of Humility. The second was built in 1567. This has two inscriptions, one on each side. One is VIRTUTIS, the gate of Virtue. On the other side is JO CAIUS POSSUIT SAPIENTIÆ, "John Caius built this in honor of Wisdom." The third is inscribed HONORIS, the gate of Honor, and was built in 1574. On the north wall of the chapel is an inscription to the founder of the college. It is in Latin, a free translation of which is as follows: "Virtue our Death survives. I was Caius, aged 63, Died July 29, Anno Domini 1573." Dr. Caius gave to the college a beautiful Caduceus, or silver mace, ornamented with four twining serpents; it is two feet and a half long, and, by his direction, is borne before the master at the principal college festivities. This has been marked as the Medical College of Cambridge, and has produced a long roll of eminent physicians, among whom is William Harvey, the discoverer of the circulation of blood, in 1657. It has also produced several antiquarians, who were distinguished for their valuable researches. Among her eminent men may be named Sir Thomas Gresham, founder of the Royal Exchange, London,--died 1579; also the distinguished Bishop Jeremy Taylor, 1667. The next in order, the fifth, is Trinity Hall. This is the only college which retains its original designation of _hall_. A few years ago there were three others so called, Pembroke, Clare, and St. Catherine's. The first of these changed appellation about thirty years ago; the two latter quite recently, to avoid being confounded with the _private halls_ contemplated in the University act, but afterwards changed to _hostels_. This college was one of the hostels for the accommodation of students, but was purchased by John de Cranden, Prior of Ely, for the monks to study in; and in the year 1350 it was obtained of the prior and convent of Ely by William Bateman, Bishop of Norwich, with the lands thereto appertaining, who constituted it a "perpetual college of scholars of canon and civil law in the University of Cambridge;" and, in accordance with the founder's intentions, it is particularly appropriated to the study of civil law.