Miscellaneous Intelligence. 79 



house Eaves and Markfield, and beading towards the north- 

 east. The anticlinal fault of Charnwood Forest, so far as known, 

 satisfies these conditions, and it is highly probable that the earth- 

 quake was caused by a slip of this fault. 



The beginning of the sound preceded that of the shock in all 

 parts of the disturbed area ; the end of the sound followed that 

 of the shock in the central district and in the neighborhood of 

 the minor axis, but preceded it near the end of the major axis. 

 Thus the sound apparently outraced the shock in the direction of 

 the major axis, but not in that of the minor axis. These time- 

 relations of the sound and shock can be readily explained if the 

 area over which the fault-slip took place were several miles in 

 length, for the sound in all probability is due to small and rapid 

 vibrations proceeding chiefly from the margins of that area. 



The intensity was greatest at and near Woodhouse Eaves, and 

 it is probable that the fault-slip began in the neighborhood of 

 this place, gradually diminishing in amount in either direction, 

 rather rapidly towards the northwest, and much more slowly 

 towards the southeast ; the rate at which the slipping advanced 

 being greater than the velocity of the earth-wave. The total 

 length of the fault-slip may have been as much as 12 miles or 

 even more and there can be little doubt that it was continued for 

 some distance under the Triassic rocks on which Leicester is 

 built. 



3. Gongres Geologique International. Compte Rendu de la 

 5 me Session, Washington, 1891, i-ix, pp. 1-529, figs. 1-39, pis. 

 i-xxi, Washington, 1893. 



This Report of the fifth session of the International Congress 

 of Geologists, held in Washington in 1891, prepared by the gen- 

 eral Secretary S. F. Emmons, like most of its predecessors, con- 

 tains much valuable matter in addition to the Proces-verbeaux of 

 the proceedings of the Congress itself. 



Part first gives a brief account of the history of the Congress ; 

 part second contains the Proces-verbeaux ; part third contains 

 reports of special discussions ; A communications, and B discus- 

 sions on the correlation of rocks; C discussion upon the classifi- 

 cation of the Pleistocene deposits ; D discussion of the color- 

 scheme for geological maps, and E a brief compte-rendu of the 

 geological excursions. Part 4, more than one-half the volume, 

 contains illustrated explanations of the three main excursions; 

 A, Geology of Washington and vicinity, prepared by W. J. 

 McGee, with the collaboration of G. H. Williams, Willis and 

 Darton ; B, Geological Guide Book of the Rocky Mountain 

 Excursion, edited by S. F. Emmons, parts of it being written by 

 Gilbert, G. H. Williams, I. C. White, Orton, Emmons, Grant, 

 Eldridge, Hague, Iddings, Weed, Peale, Cross, Walcott, and 

 McGee, and interesting notes are added by the visiting geologists, 

 T. McK. Hughes, Fritz Freeh and H. M. Cadell. The thanks of all 

 geologists are due to Mr. Emmons for so successfully editing this 

 valuable report, and to the Government, through the U. S. Geo- 

 logical Survey, for its excellent publication. h. s. w. 



