U. S. DEPARTMENT OF AGRICULTURE. 



BUREAU OF PLANT INDUSTRY— BULLETIN NO. 79. 



B. T. GALLOWAY, ChiiJ of Bureau. 



THE VARIABILITY OF WHEAT VARIETIES IN 

 RESISTANCE TO TOXIC SALTS. 



BY 



L. L. HAKTER. 

 Scientific Assistant, Laboratory of Plant Breeding. 



\'EGETABLE PATHOLOGICAL AND PHYSIOLOGICAL 

 INVESTIGATIONS. 



Issued July 27, 1905. 



WASHINGTON: 

 government tkinting office. 



19 5. 



