In the act ordering the erection of prisons in 1655, the assembly chose three men to make the rate in each town except Newport, for which four were chosen. Each town was empowered to add to the number, or to substitute others for those chosen. These same men were to have the charge of building the prisons. (R.I. Col. Recs. I, 311). The several acts in regard to the rates of 1662 and 1664, do not prescribe the machinery of assessment and collection except where extraordinary measures are adopted as a result of non-payment. In other cases it is simply ordered that the inhabitants of the towns meet and assess the rate. It does not seem probable that a full town meeting would undertake to apportion a rate. It is more likely a committee of assessors would be appointed for the purpose. The law of 1665, providing for the military assessment orders the appointment of men to make the rate. An act of October, 1670, directs each town to choose a convenient number of persons to make the rate ordered the June before. After 1678, the records of Providence show that the election of assessors was customary. They were elected for each tax. It was not till well into the next century that assessors became regular town officers. Footnote 60: It is probable that in the earlier years each individual was his own collector, the constable being sent for the rate only on failure to pay. Before long, however, the constable must have become practically the collector. A law of June, 1684, provides that all future rates shall be gathered by the town constables who were to be allowed two shillings on the pound for their services, and to forfeit double their fees in case of neglect (R.I. Col. Recs. III, 162) Footnote 61: R.I. Col. Recs. II, 510. Footnote 62: Taxation according to "strength and estate," as it usually reads, is the almost unvarying form in which these early colonists expressed their idea of equality in taxation. It would be difficult to find a better expression. Footnote 63: Payment however must be made in what may be kept in a store house three months without damage. Footnote 64: This is explained as follows, "or that is accordinge to tenn upon the hundred a yeare forbearance". This and a like reference further on in the text would seem to show that it was ten per cent interest which was to be charged on rates not paid when due and that the usual rate of interest was five per cent. Footnote 65: