UNITED STATES GEOLOGICAL SURVEY 
CHARLES J». WALCOTT, DIRECTOR 
RESULTS 
OF 
SPIRIT LEVELING 
FISCAL YEAB lOOO-'Ol 
]',Y 
H. M. WILSON, J. H. RENSHAWE, E. M. DOUGLAS, AND R. U. GOODE 
WASHINGTON 
GOVERNMENT PRINTING OFFICE 
1901 
