LETTER OF TRANSMITTAL. 



U. S. DEPARTMENT OF AGRICULTURE, 



Washington, D. (7., June 5, 1891. 



SIR : I have the honor to submit herewith for republication a series 

 of papers on horticultural and kindred topics previously published in 

 various Annual Reports of this Department, which are no longer avail- 

 able for distribution. These papers have been brought together, in 

 accordance with your suggestion, to afford a convenient means of reply- 

 ing to many requests for information on these topics. 



WILLIAM SAUNDERS, 

 Superintendent of Gardens and Grounds. 

 Hon. J. M. EUSK, 



Secretary of Agriculture. 



