PACHELOMETRY, 
RAPID SUBVEYING. 
BY 
BENNETT HOOPER BROUGH, 
INSTRUCTOR IN MINE SURVEYING AT THE ROYAL SCHOOL OF MINES. 
AAAS NINN NINN NAN 
By permission of the Council. 
Excerpt Minutes of Proceedings of The Institution of Civil Engineers. 
Vol. xci. Session 1887-88. Parti. 
Edited by JAMES FORREST, Secretary. 
LONDON: 
Publisher bu the Institution, 
25, GREAT GEORGE STREET, WESTMINSTER, S.W. 
[TELEGRAMS, ‘INSTITUTION, LONDON.” TELEPHONE, * 3051/71 
1887. 
  
(The right of Publication and of Translation is reserved.