LETTER OF TRANSMITTAL. 



U. S. Department of Agriculture, 

 Division of Vegetable Physiology and Pathology, 



^Vaddngton, D. C, Amjicst 29, 1900. 

 Sir: I respectfiill}' transmit herewith a paper b}- Mr. P. H. Dorsett, 

 of this Division, giving the results of some investigations of a disease 

 affecting cultivated violets and generally known as spot. There is not 

 less than a million dollars' worth of violet flowers sold every year in 

 the United States, and were it not for the disease in question the 

 amount would doubtless be increased 20 per cent. The annual loss 

 from the disease, therefore, represents probably a money value of fully 

 1200,000. In view of the general interest in violet culture and the 

 importance of the knowledge of a means of preventing the disease, I 

 respectfully recommend the publication of the paper as Bulletin No. 

 23 of this Division. 



Respectfully, B. T. Galloway, 



Chief of Division. 

 Hon. James Wilson, 



Secretary of Agricultxire. 



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