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234 CHINA MISSION YEAR BOOK.(i).Continuation of the study of intestinal parasites.(2). Special investigation into blood parasites, more especiallyof diseases caused by protozoa.(3). Examination into diseases or pathological conditionswhich are local or circumscribed in their distribution.(4). The causation of fevers of an obscure nature.This program opens the door to many problems ofgreat importance the solution of any one of those above;outlined would be of the highest usefulness, from thehumanitarian as well as the scientific standpoint.There is, finally, a wide field for the prosecution ofresearch developing in the various schools of medicinewhich are gradually being established at large centres.It ismainly to these laboratories that we must in thefuture look for organised and systematic investigationinto the causes of obscure Oriental diseases and alonglines of preventive medicine. In the union medicalschool, for instance, which will open in Nanking probably before the end of this year, definite provision willbe made for this sort of work.A tangible beginning has been made, and thoughthe number of men who are free to follow out suchproblems is small, with increasing facilities in educationalcentres and the advent of men with highly specialisedtraining, much may be done in the near future alongthese broadly humanitarian lines of prevention andprophylaxis and the clarification of unknown and obscurepathologic states. HENRY S. HOUGHTON.