CONTENTS. 
Page. 
Announcement . 
A Disease of Almond Trees, by Newton B. Pierce. PI. xi-xiv. 
Suggestions in Regard to tiie Treatment of Cercospora circumscissa , by 
B. T. Galloway. 
Club-Root in the United States, by A. C. Eyclesliymer. PI. xv, xyi- 
Field Notes, 1891, by Erwin F. Smith. 
New Fungous Diseases of Iowa, by L. II. Pammel. 
Remarks on the Fungus of a Potato Scab, by Prof. G. de Lagerheim... 
Description Of two new Species of Peronospora, by M. B. Waite. PL 
XVII. 
Some Peronosporacile in the Herbarium of tiie Division of Vegetable 
Pathology, by W. T. Swingle... 
New Species of Fungi, by J. B. Ellis and B. M. Everhart. 
Reviews of Recent Literature. 
A Provisional Host-Index of the Fungi of the United States (W. 
G. Farlow and A. B. Seymour).—Phycomycetes. RabenhorsPs Crypto- 
gemen-flora (Alfred Fischer).—Fruit Culture in Foreign Countries 
(U. S. Consular Reports).—Sur la callose, nouvelle substance fonda- 
mentale existant dans la membrane; Sur les riactifs colorants des 
substances foudamentales de la membrane; Sur la structure des Pero- 
nosporees; Sur la disarticulation des Conidies chez les Peronospories 
(L. Mangin).—Annual Report of the State Botanist of the State of 
New York (Chas. H. Peck).—Fossil Botany (Solms-Laubach)— 
Monographic du Pourridie des vigucs et des arbres fruitiers (Pierre 
Viala).—Croonian Lecture: On some relations between host and par¬ 
asite in certain epidemic diseases of plants (H. Marshall Ward). 
Index to Literature. 
65 
66 
77 
79 
88 
95 
103 
105 
109 
130 
135 
153 
HI 
