1913.1 PUBLIC DOCUMENT — No. 31. 97 



AN OUTLINE OF SOME OF THE TOPICS COV- 

 ERED BY THE DEPARTMENT OF VEGE- 

 TABLE PHYSIOLOGY AND PATHOLOGY 

 SINCE ITS INCEPTION. 



G. E. STONE. 



The department of vegetable physiology was established in 

 the State Experiment Station in 1888, and Dr. James E. 

 IIum})hrey, nnder the supervision of Dr. C. A. Goessmann, 

 carried on investigations from November, 1888, to 1892, when 

 he resigned. A bibliography of the more important papers 

 published by the dei:)artnient follows : — 



Sixth annual report of tlie State Experiment Station, 1888: i:)otato 

 scab. 



Seventh report, 1889 : general aceoiuit of fungi ; potato scab ; fungous 

 diseases on the station farm; notes on material referred to the depart- 

 ment. 



Eighth report, 1890: black knot of plum; mildew of encumbers; 

 brown rot of stone fruits ; potato scab ; notes on various diseases. 



Ninth report, 1891 : rotting of lettuce ; powdery mildcAV of the cucum- 

 ber; various diseases; preventive treatment. 



Tenth report, 1892 : diseases of the cucumber jjlant and violet dis- 

 eases: the black knot of the plum and cherry; gi-ain rusts; various 

 diseases: treatment for powdery mildew. (From 1892, when Dr. Hum- 

 phrey resigned, until 1895, the pathological work was temporarily dis- 

 continued, but in 1895 the department of vegetable physiology and 

 joathology was established and the work has been continued by the 

 writer since that time.) 



Eighth annual report of the Hatch Experiment Station, 1895: this 

 contains mainly an outline of work, and brief references to some experi- 

 ment topics. 



Ninth report, 1896: nature of plant diseases; a bacterial disease of 

 the cultivated sti'awberry {Micrococcus sp.f) ; stem rot of the cultivated 

 aster; leaf spot of decorative plants; leaf spot of Picas elastica (Lejj- 

 tostromella elastica Ell. & Ev.) ; a leaf spot disease {Graphiola PJwe- 

 nicis Poit) of the date and similar palms; a leaf spot of the begonia; 



