185. They include hotels, common lodging houses, places where employers lodge their employees and the premises of societies within the meaning of the Societies Ordinance, where persons pass the night.
186. Under the Public Health and Buildings Ordinance "Common Lodging House" includes any house or part thereof or other permanent structure where male persons of the labouring, artizan or mechanical classes, not being members of the same family, to the number of ten persons or upwards are housed, but does not include a house or other permanent structure where shopmen or domestic servants are housed by their employers.
187. Under the Public Health and Buildings Ordinance the Sanitary Board is given power to make by-laws for the licensing, regulation and sanitary maintenance of Common Lodging Houses.
189. Sixteen by-laws have been made under this Ordinance, one of which passes the power of registering the houses and licensing the keepers to the Secretary of Chinese Affairs.
189. In practice the Sanitary Department report on the condition of the house and if declared sanitary the Secretary for Chinese Affairs, if he be satisfied, registers it and licenses the keeper.
190. As mentioned above Boarding Houses include Common Lodging House. Some 700 Chinese Boarding House licences have been issued by the Secretary for Chinese Affairs. They vary in class from 3rd class lodging houses to 1st class hotels.
## SCHOOL HYGIENE
191. The School Inspection Branch of the Medical Department consists of one School Medical Officer, two Chinese Medical Officers, and three School Nurses.
192. According to the Census the number of persons between five and fifteen years of age was 141,709. The total number of schools under inspection by the Education Department in 1933 was 1,079 and the number of scholars on the Roll was 71,917.
193. The following table shows the classification of schools and the distribution of scholars.