302 REPORTS ON THE STATE OF SCIENCE, ETC. 
Jan. 12d. 21h. See note in Summary, p. 11. 
Jan. 15d. 14h. Focal depth +0-060, paper by K. Wadati in Geophy. Mag. 
Tokyo, vol. ii, no. 1, p. 10, 1929 March. 
Jan. 21d. 8h. See note in Summary, p. 17 
Mar. 3d. lh. See special note about PIS] « on p. 64 in the Summary by H. H. 
‘Turner. 
Mar. 7d. 9h. See paper in Bull. Equake. Res. Inst. Tokyo, vol. iv, p. 179 (1928), 
by A. Imamura, also paper by E. A. Hodgson, Bull. Seis. Soc. Amer., ‘vol. Xxii, no. 4 
(1932). 
Apr. ld. 19h. Focal depth +0-070. See note in Summary, p. 117: 
Apr. 14d. 6h. Focal depth +0-015. See Bol. d. Serv. Sismol. de la Univ. di 
Chile, vol. xix, 1927, paper by P. Loos. 
Apr. 28d. 2h. Focal depth +0-:025. See note in Summary, p. 147. 
May 17d. 2th. Focal depth +0-060. See note in Summary, p. 173. 
May 22d. th. The residuals suggest a focus rather deeper than normal. 
May 22d. 21h. Focal height —0-005. 
May 22d. 22h. Focal height —0-005. See note in Summary, p. 185. 
May 23d. 2h. Focal height —0-005. 
May 23d. 13h. An alternative solution given with focal height —0-005. 
May 23d. 23h. ‘ Notes de Seismologie’ of the Observatoire de Zi-ka-wei, 
No. 9, paper by P. E. Gherzi ; see note in Summary, p. 190. 
May 24d. 11h. See note in Summary, p. 192. 
May 28d. 17h. See Bull. Seis. Soc. Amer., Sept. 1927, paper by P. Byerly. 
June ld. 10h. 9m. Should read 19h. 9m. 
June 5d. 17h. See note in Summary, p. 206. 
June 20d. 14h. A slight depth of focus is probable. 
July 12d. 21h. Focal depth +0-015. See note in Summary, p. 250. 
July 15d. 3h. Focal depth +0-030. See note in Summary, p. 253. 
July 22d. 20h. An alternative solution is given. 
Aug. 8d. 18h. See note in Summary, p. 294. 
Aug. 12d. 0h. Focal depth +0-090. See note in Summary, p. 302. 
Aug. 20d. 23h. See note in Summary, p. 315. 
Aug. 24d. 8h. See paper by T. Matuzawa in Bull. Equake Res. Inst. Tokyo, 
vol. vi, 1929. 
Sept. 23d. 13h. Focal depth +0-005. See note in Summary, p. 360. 
Oct. 12d. 7h. For 24:0° N. read 25-0° N. in Summary, p. 383. 
Oct. 27d. th. Paper by T. Matuzawa in Bull. Equake. Res. Inst. Tokyo, 
vol. v, 1928 Aug. 
Nov. 16d. 2th. Focal depth +0-020. See note in Summary, p. 432. 
Nov. 19d. 7h. Focal depth +0-060. See note in Summary, p. 438. 
Nov. 19d. 23h. Paper by A. E. Mourant in Geophy. Supp. M.N.R.A.S., 
vol. ii, no. 7. 
Dec. 18d. 19h. See note in Summary, p. 461. 
Dec. 30d. 12h. See note in Summary, p. 470. 
Dec. 3ld. 5h. Papers in Geophy. Mag. Tokyo, vol. ii, no. 1, and Bull. Equake. 
Res. Inst. Tokyo, vol. vii, pt. 2. 
Deep focus has also been applied to the following quakes : 
Jan. 20d. 10h. +0-010. Feb. Id. 17h. +0-020. Apr. 3d. 13h. +0-015, 
Apr. 6d. 18h., 19h. 4m., 19h. 15m., and 20h. +0-080. Apr. 9d. 16h. +0-010. 
Apr. 13d. 13h. and 14h. +0-020. Apr. 17d. 9h. +0-020. Apr. 19d. 17h. 
+0:010. Apr. 24d. 1th. +0-020. May 2d. Ith. +0-015. June 3d. 7h. 
+0-025. June 18d. 2h. +0-050. July 4d. 13h. +0-050. Aug. Id. Ith. 
+0-050. Aug. 8d. Oh. +0-020. Aug. 24d. 18h. +0-015. Sept. 3d. 19h. 
+0-005. Sept. 30d. 10h. +0-015. Oct. 2d. 3h. +0-030. Nov. 6d. 15h. 
+0-030. Noy. 9d. lh. +0:040. Nov. 15d. 8h. +0:010. Nov. 17d. 20h. 
+0-025. Nov. 17d. 22h. +0-020. Nov. 26d. 12h. +0-030. 
Notes To 1928. 
Jan. 5d. 2th. Focal depth +0-080. See note in Summary, p. 8. 
Jan. 6d. 19h. Focal height —0-015. 
Jan. 10d. 2h. Focal height —0-015. 
os 
