DEPARTMENT OF AGRICULTURE, 



SYDNEY, NEW SOUTH WALES. 



Miscellaneous Publication, No. 666. 



LETTERS 



ON THE 



DISEASES OF PLANTS: 



BY 



N. A. COBB. 



SECOND SEIRIIES- 



Published by Authority of 

 THE GOVERNMENT OF THE STATE OF NEW SOUTH WALES. 



SYDNEY: WILLIAM APPLEGATE GULLICK, GOVERNMENT PRINTER 



1904 

 '36567 [2*.] 



