By law every innkeeper is obliged to keep a book (Yado cho), in which every traveler is noted down, and what he may do or say that may be thought worth reporting. Similar books (Gio koo cho) are kept in public brothels, in which are noted the names of men frequenting them (if the names can be got), or marks upon their bodies; how much money they spend, the saki they drink, etc. These are all for the use of this office. The prevention of the spread of the Roman Catholic or Jashiu mong sect is one of the cares of the Dai Kwang department of the Owo metski office. The names, with the genealogy, of all the families among which there were known to be Roman Catholic converts are carefully kept. Boards, called Christang hatto kaki, on which are printed a prohibition of the Christian religion, are put up in every large temple. Individuals belonging to the families under observation are not allowed to move their place of residence without permission of this office. If one dies, intimation must be given to the office, when an officer is sent to view the body, and all the relatives sign a certificate. Or if at a distance, it must be preserved in salt. The Dai Kwang office superintended the Yay boomi, or trampling on the cross, once a year at Nagasaki. It is the duty of the office to examine for Christians all over the western provinces once in three years. Whenever a child is born in a family formerly Christian, notice must be given to the office. Marriages must be reported; and also the intended adoption of a son. Adopted sons are sometimes thrown back again by the adopting parents, but Christians are not allowed to do this. A register for the same purpose is kept by the governor of Miako. These forms are kept up to the great-grandchildren of the original Roman Catholics, but have of late fallen into desuetude; but it may hereafter prove the means of stirring up dying embers of faith among the descendants in the recollections of their ancestors. The members of this department, while sitting with others, report, but have neither a voice nor a vote. Matchi boonio.--The street governors, or, as they may be called, governors or mayors of Yedo. (The Shiogoon himself is considered governor of Yedo, and Mito is hereditary Fuko Shiogoon or Vice-Shiogoon, and ought as such to reside constantly in Yedo.) Of these there are two; the one over the east, the other over the west part. The authority of these officers is chiefly over the mercantile class. They have little or no power over the Samurai, or two-sworded gentry. Their duties are with the streets and police of Yedo. They sit as judges alternately, and take cognizance of all questions and quarrels among the mercantile class. Upon a Daimio coming to stay at Yedo each alternate year, he is to call on and pay his respects to the Gorochiu, Wakatoshiyori, Owo metski, and Matchi boonio, before he goes to his own house.