In close proximity to these ruins is an actually surviving relic of Barnwell Priory. This is a tiny church of Early English Architecture, known as the "Abbey Church," or "Little St. Andrew's."[121] Small as it is, it is the Mother Church of a huge parish (now happily divided into districts) containing more than half the entire population of the Borough of Cambridge. It was built by the Canons of Barnwell, when their Priory was a century old, for the use of the little knot of hangers-on whom every great abbey attracted to its doors, and whose secular (and, perhaps, far from cleanly) presence was unwelcome at the fastidious worship of the Priory Church. And they made it the representative of the old hermit's Oratory of St. Andrew. For long ages it sufficed for the adjoining population; but when that population increased by the hundred-fold, as it did at the opening of the nineteenth century, things got to a desperate pass, and Barnwell became practically heathen, with an only too well-deserved reputation for vice of every kind. [Footnote 121: So called to distinguish it from "Great St. Andrew's," opposite Christ's College.] So matters stood when, in 1839, Dr. Perry, Fellow of Trinity College, who was Senior Wrangler in 1828, and whom we have met with as the devoutest attendant at the College Chapel, and as the builder of Great St. Andrew's, came forward to stem the evil. Renouncing the comfort of College life, he took upon himself the charge of this hopeless district; for which he built, at his own expense, the commodious (if ugly) red-brick church opposite the Abbey, and a like fabric (St. Paul's) at the other end of the area, on the way to the railway station. He laboured devotedly himself, he inspired others to work, he invoked the help of a band of pious undergraduates who had already begun a Sunday School on their own account,[122] and when he departed to become the pioneer Bishop of Australia, he left a well-equipped Parish organisation which is still in full activity.[123] [Footnote 122: This School still flourishes, and is still staffed by undergraduates. It is known as "Jesus Lane Sunday School," its first quarters having been in that street.] [Footnote 123: The parish has now been divided into half a dozen districts. And its earliest houses, immediately round the Abbey Church, remain (as they have been from the first) outlying fragments of two small Town parishes, St. Benet's and St. Edward's.] [Illustration: _The Lepers' Chapel, Barnwell._]