HODGKINSON, George C <br/><br/>
Actinometrical observations among the Alps, with the description of a new actinometer 

 - London  1867 
 - 21cm. 
<br/><br/> Offprint from the Proceedings of the Royal Society, no.89, 1867 
<br/><br/><label>Dewey Class. No.: </label>16.1 
<br/><br/><label>Report. No.: </label>T447.10