﻿Vol. IX, No. 12. INDIANA UNIVERSITY BULLETIN. March, 1912 



INDIANA UNIVERSITY 

 STUDIES 



CONTENTS 



12. Studies on Perchloric Acid (IV) : Distillation of Potassium 

 Perchlorate WITH Sulphuric Acid. By Frank C. Mathers. 



13 Qualitative Separation and Detection of Potassium and 

 Sodium with Perchloric Acid and Hydrofluosilicic Acid. 

 By Frank C. Mathers and Ira E. Lee. 



14. The Annual Parallax of Eight Stars. By William E. 

 Howard. 



