43-8 



Proceedings of the American Academy of Arts and Sciences. 

 Vol. XLIII. No. 8. — October, 1907. 



CONTRIBUTIONS FROM THE CHEMICAL LABORATORY 

 OF HARVARD COLLEGE. 



THE QUANTITATIVE DETERMINATION OF ARSENIC 

 BY THE GUTZEIT METHOD. 



By Charles Robert Sanger and Otis Fisher Black. 



With Two Plates. 



