At 6.27 P.M. while I was sitting studying my maps, I heard a rumble and then a sharp short knock followed by a slight one that one second apart. As my bureau plan struck the chalk case N. and S. (Getting some about it, but just once decided it was an earthquake shock.) The next day the papers said nothing about it at all, but the elevator man asked me if I felt it, and when I asked him how often they occur he said one in about any two weeks. This shows plain that Coastal California is in constant motion. Burwinkle told me later on that recently the Chairman of the Board of Commerce of Pasadena called on Luella O'Neill, and brought out a talk of earthquakes by the geologists of the University stopped. Burwinkle and Stoll now called and the two then gave the Chairman a stiff talk and said it was their duty to keep in talking so that the proper precaution could be taken in building the houses in the proper manner.