Proceedings of the American Academy of Arts and Sciences. 

 Vol. XXXVIII. No. 12. — December, 1902. 



ON THE THERMAL DEVELOPMENT OF THE SPARK 

 SPECTRUM OF CARBON. 



By Henry Crew and John C. Baker. 



lN7ESTI0i.TI0IiS ON LlOHT AMD HEAT, MADE AMD PnBLISHED WHOLLY OH IN PART WITH APPROPBIATIONS 



FROM THE RUMFORD FOND. 



