In the eighteenth century the system was elaborated by what were known as the _Libros Vocandorum_. When any one was denounced to a tribunal or came forward spontaneously, his name, description and offence were transmitted to all the other tribunals, which entered them in alphabetical registers, arranged under the first baptismal names. These entries give the name, the date, a brief description of the person, and the nature of the charge, with a blank to be filled in with the result of the trial, which was also reported to all. Thus each tribunal possessed a digested record of the current business of the whole Inquisition, clearly arranged for ready reference, and, as the years passed, it afforded at a glance the means of ascertaining whether any culprit had been in the hands of the Holy Office before, and of facilitating researches into limpieza. The importance of the Libros Vocandorum was so fully recognized that the Suprema required the monthly reports of the fiscal always to specify that they were kept posted up to date. These registers were not arranged uniformly in all the tribunals, but the usual plan was that adopted in Valencia, where there was one general index in two volumes and a third for confessors accused of soliciting women _ad turpia_ in the confessional.[764] Thus all the tribunals co-operated and, with their machinery of commissioners and familiars in almost every town and village, they formed one harmonious organization for the detection and punishment of culprits. Human ingenuity could scarce devise a more perfect system of promptly suppressing all deviations from the standards established by the Inquisition. CHAPTER III. UNSALARIED OFFICIALS. We have seen, when treating of privileges and exemptions, the distinction drawn between salaried and unsalaried officials. The former, except in the case of physicians and advocates of the accused, were understood to devote all their time to the service of the tribunal. The latter were only called upon incidentally for special work. It is true that the Inquisition was empowered to summon every one for aid, but its service was confidential and its ministers, at least in the later period, had to be of unblemished lineage, so that it was requisite to have at hand those on whom it could rely and whom it could summon at any moment. There was no difficulty in finding men ready to serve without pay. The honor of connection with the Inquisition, the privilege of its fuero in greater or less degree and the assurance of limpieza which it carried with it, rendered applicants for appointment more numerous than positions to be filled. These unsalaried officials consisted of calificadores, consultores, commissioners with their notaries, and familiars.