Casting herself promptly and entirely on the system of Free-Will Offerings as the means of her future sustenance, the Free Church met with a response so liberal and spontaneous that it is almost without parallel in history. In all these arrangements Dr. Buchanan took an active interest, and his sound practical advice was on all occasions of financial embarrassment consulted by his colleagues. As to the manner in which these difficulties were met Dr. Buchanan, himself, in a paper read on the 15th March, 1870, before the Statistical Society of London, stated that "The Free Church at once and unanimously adopted, as the backbone of her financial system, the plan of a common fund, to the support of which all her congregations should contribute, and in the benefits of which all her ministers should share. With whom the central idea of the scheme originated it is impossible to say. The very nature of the case was such as almost inevitably to suggest it to any one who was seriously and intelligently considering the subject. Of one thing, however, there can be no doubt or question, that the authorship of the system of finance, into which the idea now spoken of was gradually developed, belonged to Thomas Chalmers. It had taken shape in his mind, and in at least some of its leading features had been put in writing by his pen in the summer of 1841. It is true that in the autumn of the same year, and without any notion of the views or plans of Dr. Chalmers, the principle of a common fund, to be distributed in equal shares, was given out by Dr. Candlish at a great public meeting held at Edinburgh, in anticipation of the event which, even then, had begun to loom out, not indistinctly, through the storm and tempest of the time. It was not, however, till the month of November, 1842, that it took the form of a fully-planned scheme for the future support of the church, drawn out in detail and supported by elaborate argument. This form it assumed in a speech of great power and eloquence, which is still preserved, and which was delivered by Dr. Chalmers at a very memorable meeting. The meeting to which I refer was called 'the convocation,'--a name familiar enough in England, though descriptive there of a quite different assembly. The Scotch convocation was not a court, but simply a private, unofficial conference of ministers interested in the common cause of the then impending disruption. They met alone, because they desired to look their position, prospects, and responsibilities calmly and prayerfully in the face, without being liable, under the influence of public feeling, to be either turned back or to be carried further or faster forward in the direction in which events were moving, otherwise than as their own deliberate judgment and sense of duty might seem to them to sanction and require."