6º Amount of work. Are the slaves over-worked? Are they supervised? Are they kept at work by any compulsory means (flogging, etc.)?
7º Do the slaves live in their master’s house?
VIII. Serfdom.
Does it ever exist among savages? Are there instances of the coexistence of slavery and serfdom? In what manner do people become serfs?
IX. Number of slaves.
1º What is, in each case, the number of the slaves, and their proportion to the general population?
2º What is, in each case, the numerical proportion of the sexes among the slaves?
3º Do the slaves form a separate class of people?
4º Are the slaves an integral part of the wealth of their owners?
5º In some cases only certain classes (e.g. the nobility) are entitled to keep slaves[28].