In order to distribute the food so obtained, central depôts were established in various parts of Ireland, under the direction of officers of the Commissariat, with sub-depôts under the charge of the Constabulary and Coast Guard; and, when the supplies in the local markets were deficient, meal was sold from these depôts at reasonable prices to Relief Committees, where any existed, and where they did not, to the labourers themselves. In the time of the heaviest pressure (June and July 1846), one sub-depôt retailed 20 tons of meal daily, and the issues from a single main depôt to its dependencies amounted to 233 tons in one week. The Relief Committees were formed, under the superintendence of a Central Commission at Dublin, for the purpose of selling food in detail to those who could buy it, and of giving it to those who could not; the requisite funds being derived from private subscriptions, added to, in certain proportions, by Government donations. The Relief Committees also selected the persons to be employed on the Relief Works carried on under the superintendence of the Board of Works. If the Irish poor had been in the habit of buying their food, as is the case in England, the object would have been attained when a cheap substitute had been provided for the potato; but as the labouring class in Ireland had hitherto subsisted on potatoes grown by themselves, and money wages were almost unknown, it was necessary to adopt some means of giving the people a command over the new description of food. This was done by establishing a system of public works, in accordance with the previous practice on similar occasions, both in Ireland and in other countries. These works, which consisted principally of roads, were undertaken on the application of the magistrates and principal cess-payers, under the Act 9 & 10 Vic., c. 1, which was passed for the purpose, and the expense of executing them was defrayed by advances of public money, half of which was a grant, and half a loan to be repaid by the barony. The largest number of persons employed in this first season of relief was 97,000, in August, 1846. The first symptoms of neglected tillage appeared in the Spring of 1846, and they were worst in those districts in which the Relief Works were carried on to the greatest extent. The improvements in progress on the Shannon and the arterial drainages were also impeded by the preference which the labourers showed for the Relief Works.