The object of this paper is to present to those who are interested in the upper air conditions of China the summary of results of five years' aerological investigation, and further to fill in the gap that is left open by Wager in his well known book "Klimatologie der freien Atmosphere". By studying carefully the results of a few aeroplane and kite soundings made over Nanking, Peiping and Kunming as represented in the Chinese text, we are able to attempt some tentative generalizations out of them.