fc 



THE 





OUARTERLY JOURNAL 



^■5 



GEOLOGICAL SOCIETY OF LONDON. 



EDITED BY 



THE ASSISTANT-SECRETARY OF THE GEOLOGICAL SOCIETY. 



Quod si cui mortalium cordi et curae sit non tantum inventis hserere, atque iis uti, sed ad ulteriora 

 penetrare ; atque non disputando adversarium, sed opere naturam vincere ; denique non belle et probabiliter 

 opinari, sed certo et ostensive scire; tales, tanquam veri scientiarum filii, nobis (si videbitur) se adjungant. 

 — Novum Organum, Prce/atio. 



VOLUME THE FIFTY-FIRST. 



1895. 1 



LONDON 



AUG 11 1930 * 



¥3 





LONGMANS, GREEN, AND CO. 



PARIS: FRIED. KLINCK8IECK, 11 RUE DE LILLE; F. SAVY, 77 BOULEVARD ST. GERMAIN. 



LEIPZIG: T. O.WEIGEL. 



SOLD ALSO AT THE APARTMEIJTS OF THE SOCIETY. 



MJDCCCXCV. 



