Instructions to special river and rainfall observers of the Weather bureau ... 

 - Washington,  Govt. print. off.,  1909. 
 - 47 p.  diagrs.  23 cm. 
<br/><br/> W. B. no. 415. 
<br/><br/>
<br/><br/><label>LCCN: </label>agr10000032  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Meteorology--Observations.<br/>Meteorological services--United States.<br/>River surveys.
<br/><br/><label>LC Class. No.: </label>QC925  / .U6