In the following, it is proposed that Angervo-Petterssen's kinematical analysis of weather charts should be introduced to our weather bureau system. For practical application to Japanese weather forecasting, some remarks are stated.
Next Angervo's formulae on the path of a pressure center are proved in different ways. Also Augervo's results on the formation of a depression (or an anticyclone) from a V-shaped depression (or a wedge) are checked in simpler manners.