98 EXPERIMENT STATION. [Jan. 



a so-called black spot disease of the rose {Pilobolus rrystallinus Tode) ; 

 a leaf blight or anthraenose of the cucumber {Colletotrichum Lagen- 

 arium (Pass.) Ell. & Hals.); an unusual outbreak of two rusts, — 

 asparagus rust (Puecinia asparagi D. C.) and a late rust of the black- 

 berry {Chrysomyxa albida Kiihn.) ; the tomato mildew {Cladosporium 

 fulvum Cke.) ; a chrysanthemum rust; "drop" of lettuce [Sclerotinia 

 Libertiana Fckl.) ; wilt of maple leaves; topburn of lettuce. 



Tenth report, 1S97 : the causes of the failure of the potato crop of 

 1897; the "drop" of lettuce; the asparagus rust {Puecinia asparagi 

 D. C.) ; the fire blight {Bacillus qmtjlovorus (Burr.) DeToni) ; quince 

 rust {Gymnosporangium clavipes C. & P.) ; brown rot of stone fruits 

 {Monilia fructigena Pers.) ; the chrysanthemum rust {Puecinia Tanaceti 

 S.); some leaf blights of native trees; a leaf blight of the sycamore 

 or button wood {Glceosporium nervisequum (Fckl.) Sacc.) ; a leaf blight 

 of the butternut {Glwosporium Juglandis (Lib.) Mont.) ; a leaf spot 

 of the chestnut {Septoria ochroleuca B. & C.) ; a leaf sj^ot of the wild 

 black cherry {Septoria cerasina Pk.) 



Eleventh report, 1898: scope of work; black spot of the maple {Rhy- 

 tisma acerinum (P.) Fr.) ; oak leaf blight {Glceosporium nervisequum 

 (Fckl.) Sacc); walinit leaf blight {Gla'osporium Juglandis (Lib.) 

 Mont.); a muskmelon disease; rotting of cabbage; further considera- 

 tions in regard to the drop in lettuce; the chrysanthemum rust; a new 

 pansy disease; seasonal peculiarities of certain shade trees; overfeeding 

 of plants; the bronzing of rose leaves; cucumber wilt; some difficulties 

 which city shade trees have to contend with. 



Twelfth annual report, 1899 : aster diseases ; the bacterial encumber 

 wilt; a geranium disease; muskmelon failures; the maple leaf blight 

 (Phyllosticta acericola C. & E.) ; the chrysanthemum rust; some experi- 

 ments in growing violets in sterilized soil; the relationship) existing be- 

 tween the asparagus rust and the physical properties of the soil. 



Thirteenth report, 1900 : aster diseases ; nematode Avorms ; cucumber 

 mildew {Plasmopara Cuhensis B. & C.) ; Russian thistle in Massachu- 

 setts; influence of chemical solutions upon the germination of seeds. 



Fourteenth report, 1901: the dying of cut-leaved birches; the present 

 status of chrysanthemum rust in Massachusetts; the effects of desicca- 

 tion on soil; melon failures; stem rots and wilt diseases; the present 

 status of the asparagus i"ust in Massachusetts; sterilization of soil in 

 greenhouses for fungous diseases. 



Fifteenth report, 1902: peach leaf curl {Exoascus deformans (Berk.) 

 Fckl.); apple leaf spot; sycamore blight {Glceosporium nervisequum 

 (Fckl.) Sacc): strawberry root rot; apple scab {Fusicladium dcndri- 

 iicum (Wallr.) Fckl.); cucumber wilt; sweet pea troubles; aster dis- 

 eases; potato blight {Phytophthora infestans (Mont.) DeBarry) ; 

 cucumber and melon diseases; asparagus rust {Puecinia asparagi 

 D. C.) ; chrysanthemum rust {Puecinia Chrysanthemi Roze) ; the cucum- 



