H. O. Cooper <br/><br/>
Slide rule calculations / 
Cooper,H.O 
 - London   H. Milford, Oxford University Press  1931 
 - 131p.; 
<br/><br/>Common logarithms (Page-1), Slide rule scales (Page-8), Multiplication and division (Page-15), Proportion and percentage (Page-29), Squares and square roots (Page-39), Cubes and cube roots (Page-46), Reversed slide methods (Page-54), The scale for reading logarithms (Page-60), Log log scales (Page-81), Applications (Page-92). 
<br/><br/><label>Subjects--Personal Names: </label><br/>H. O. Cooper.
<br/><br/><label>Subjects--Corporate Names: </label><br/>Slide rule
<br/><br/><label>Dewey Class. No.: </label>515,COO