iTTliK ol" TkAXSMITTAL 



U. 8. Dei'aktmknt of Acukultukk, 



liuKEAU OF Plant Indistuv, 



Office of the Chief, 



\Viisl,n,<ii,„K I), r.. A/>r!l 20. inOJf,. 



Sir: I have tho honor to ti'aii.sniit lici-owith the niaiiusi-iipt ol" a 

 toflinical papi-r entitled " Investio-ations of Rusts," by Mark Alfred 

 Oarleton, Cerealist in diarize of Coreal Investigations, Vegetable 

 Pathological and Physiological Investigations, and recommend its 

 publication as Bulletin No. (>3 of the series of this Bureau. 



The two illustrations accompanying the manuscript are necessar}'^ 

 to a complete understanding of the subject-matter of this paper. 

 Kespectfully, 



B. T. Galloway, 



Hon. James Wilson, 



Secretary of Agriculture. 



C/ilef of Bureau. 



