ABSTRACT
An important aspect of the colonization problem is the question whether unexploited districts are suitable for settlement by the white races. In northern latitudes heating technique has been adopted, in proportion as it has improved, in order to regulate indoor temperature, but conditions in the tropics remain as primitive as of old. The use of the white man's labour in the tropics is hindered, partly by the physical exhaustion resulting from the high temperature, and partly from the purely psychological burden which accompanies the necessity of working under such conditions. Tropical hotel rooms are among the least agreeable experiences of a prolonged stay in the tropics. Cool hotel rooms would be an immense comfort to travellers and would doubtless also be profitable to their proprietors. Cooled cabins and railway compartments, on the other hand, would be in every way stimulating.
