302 REPORTS ON THE STATE OF SCIENCE, ETC. 



Notes to 1920. 



Jan. 20d. Ih. Focal depth +0-030. 



Feb. 22d. 17h. Focal depth +0-050. 



Feb. 26d. Ih. Focal depth +0-050. 



Mar. 3d. lOh. Focal depth +0-030. 



Mar. 15d. 12h. Focal depth +0-030. 



Mar. 22d. 20h. Focal depth +0-040. 



Apr. 6d. 19h. Focal depth +0-050. 



May 6d. 9h. Focal depth +0-070. 



May lOd. 18h. Focal depth +0-060. 



May 27d. 5h. Focal depth +0-050. An alternative solution is given -with 

 normal focus at 19-0° N. 109-0° E. 



May 30d. 20h. The latitude of the epicentre is -wrongly given in the Summary 

 as 32-0° N. instead of 32-2° N. -which corresponds to the constants used. 



July 2d. 18h. Focal depth +0-070. 



July 20d. 12h. Focal depth +0-010. 



July 26d. 5h. Deep focus suggested, but evidence insufficient. 



Aug. 3d. 3h. Focal depth +0-040. 



Aug. 15d. 8h. Focal depth +0-030. 



Nov. 24d. llh. Focal depth +0-010. 



Dec. 16d. 12h. The terribly disastrous earthquake in Kansu. 



Dec. ISd. lOh. Focal depth +0-020. 



Notes to 1921. 



Mar. 4d. 12h. Focal depth +0-060. 



Mar. 6d. 7h. Focal height —0-020. 



Mar. 23d. 22h. Focal depth +0-060. Revised from solution -with normal focal 

 depth at 8-0° S. 127-5° E. 



Mar. 24d. Ih. Focal depth +0-060. Revised from solution -with normal focal 

 depth at 6-5° S. 131-5° E. 



Mar. 30d. 15h. 2m. Focal depth +0-040. 



Apr. 15d. 21h. High focus suggested, but evidence insufficient. 



Apr. 25d. 17h. Focal depth +0-040. Compare 1917 May 24. 



May 12d. 3h. Two antipodal observations suggest a high focus, but those near 

 epicentre do not support this ; indeed, they suggest a deep focus. 



May 20d. Oh. Focal depth +0-030. 



May 20d. 13h. High focus suggested, but evidence insufficient. 



July 4d. 14h. 18m. +25-0° +141-5°. Would perhaps be better -nrith focal depth 

 +0-030, To=14h. 18m. 20s., and an epicentre further to the N.W. 



July 4d. 14h. 18m. +29-0° + 130-0°. Curiously close in time to (represented as 

 simultaneous with) above shock. 



July 14d. Only one tremor recorded all day, at 7h., near Nagasaki. 



July 15d. 18h. Focal depth +0-030. 



Sept. 20d. 20h. Residuals not good. Possibly two shocks. Or focal depth +0-050, 

 with epicentre 1-5° S. 109-3° E. 



Oct. lOd. 2h. Focal depth +0-060. 



Nov. 15d. 20h. Focal depth +0-030. 



Dec. 18d. 15h. Focal depth +0-080 ; exceptionally deep. 



Notes to 1922. 



Jan. 17d. 3h. Focal depth +0-070. 



Feb. 5d. 3h. Focal height -0-040. 



Mar. 4d. 13h. Focal depth +0-030. 



Mar. 6d. 21h. Focal depth +0-030. 



Mar. lOd. 16h. Focal depth +0-060. 



Mar. 28d. 3h. Focal depth +0-010. 



July lOd. 9h. Focal depth +0-050. 



Aug. 3d. 9h. Focal depth +0-020. 



Aug. 13d. Oh. and 13d. 12h. In the Summary a discussion of the residuals for 

 these two shocks and for that of August lid. suggests that the epicentres are closely 

 the same within a small fraction of 1°. 



