Proceedings of the American Academy of Arts and Sciences. 

 Vol. XLII. No. 25 — March, 1907. 



TEMPERATURE OF MARS. 



A DETERMINATION OF THE SOLAR HEAT RECEIVED. 



By Percival Lowell. 



Investigations oh Light and Heat madb or published, wholly or in part, with Appbofblatiohs 



FROM TUB KdmFURD FUND. 



