It is scarcely less interesting, in the case of one so gifted for the work of visiting the careless, and so singularly skilled in ministering the word by the bedside of the dying, to find a record of the occasion when the Lord led him forth to take his first survey of this field of labor.  There existed at that time, among some of the students attending the Divinity Hall, a society, the sole object of which was to stir up each other to set apart an hour or two every week for visiting the careless and needy in the most neglected portions of the town.  Our rule was, not to subtract anything from our times of study, but to devote to this work an occasional hour in the intervals between different classes, or an hour that might otherwise have been given to recreation.  All of us felt the work to be trying to the flesh at the outset; but none ever repented of persevering in it.  One Saturday forenoon, at the close of the usual prayer-meeting, which met in Dr. Chalmers’ vestry, we went up together to a district in the Castle Hill.  It was Robert’s first near view of the heathenism of his native city, and the effect was enduring.

“March 3.—­Accompanied A.B. in one of his rounds through some of the most miserable habitations I ever beheld.  Such scenes I never before dreamed of.  Ah! why am I such a stranger to the poor of my native town?  I have passed their doors thousands of times; I have admired the huge black piles of building, with their lofty chimneys breaking the sun’s rays,—­why have I never ventured within?  How dwelleth the love of God in me?  How cordial is the welcome even of the poorest and most loathsome to the voice of Christian sympathy!  What imbedded masses of human beings are huddled together, unvisited by friend or minister!  ‘No man careth for our souls’ is written over every forehead.  Awake, my soul!  Why should I give hours and days any longer to the vain world, when there is such a world of misery at my very door?  Lord, put thine own strength in me; confirm every good resolution; forgive my past long life of uselessness and folly.”

He forthwith became one of the society’s most steady members, cultivating a district in the Canongate, teaching a Sabbath school, and distributing the Monthly Visitor, along with Mr. Somerville.  His experience there was fitted to give him insight into the sinner’s depravity in all its forms.  His first visit in his district is thus noticed:  “March 24.—­Visited two families with tolerable success.  God grant a blessing may go with us!  Began in fear and weakness, and in much trembling.  May the power be of God.”  Soon after, he narrates the following scene:—­“Entered the house of ——.  Heard her swearing as I came up the stair.  Found her storming at three little grandchildren, whom her daughter had left with her.  She is a seared, hard-hearted wretch.  Read Ezekiel 33.  Interrupted by the entrance of her second daughter, furiously demanding her marriage lines.  Became more discreet.