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thora infestans, Potato-rot; there is more about Pear Blight writ- 
ten by Dr. J. C. Arthur, and a chapter on Scoleotrichum gra- 
mints, a disease of Orchard Grass, by Prof. Trelease. All these 
Fungi are figured. 
Report on Botanical Work in Minnesota for the year 1886.—-J. C. 
Arthur and others. (Geol. and Nat. Hist. Surv. Minn., Bull. 
No. 3, pamph. pp. 56, St. Paul, 1887). 
Mr. Warren Upham’s valuable catalogue of the Minnesota 
Flora is here admirably supplemented by the report of work in 
the Vermillion Lake district made up of: (1). Sketch of the 
Flora of Vermillion Lake and vicinity, by Prof. L. H. Bailey, Jr. ; 
(2). A list of plants collected between Lake Superior and the 
International Boundary, by Professors Arthur, Bailey and Mr. 
E. W. O. Holway in which we note Littorella lacustris, a new 
variety of Salix lucida and Carex penguis, Bailey, n.sp. Dr. Beal 
determined the grasses, Prof. Barnes the mosses and Prof. Un- 
derwood the hepatics. A large number of Thallophyta and 
Protophyta are enumerated, among the latter Syuchytrium Asari, 
Arthur and Holway, n. sp. (3). Plants observed or collected on 
the Bluff at Duluth, by Prof. Bailey. (4). Supplement to the 
Flora of Minnesota, in which Mr. Warren Upham brings 
together the additions to the State Flora, corrections and new 
localities, and (5). Prof. Bailey gives a list of species noted on 
Hunter’s Island, British America. 
Sarraceniaceae or Pitcher Plants.—Observations on the. John 
Kruttschnitt. (Papers New Orleans Acad. Sci.,i., pp. 81-84). 
Descriptions of the glands, which are also roughly figured, 
and of the foot of a fly. ‘“ The fly has evidently a task to per- 
form in connection with the Sarraceniacee ; it consists in exciting 
the plant to certain actions by the gentle friction exerted by the 
padded foot of the fly.” And as an objection to the theory of 
development, “the Sarraceniace after it has obtained its full 
growth is brought into intimate connection with the fly; but the 
fly derives apparently no advantage from the Sarraceniace !” 
Structure of certain Timber Ties; Behavior and Causes of their 
Decay in the Roadbed. P.H. Dudley, (U.S. Dept. Agric., 
Forestry Division, Bull: No. 1., pp. 31-65; nineteen plates). 
_ -. We find here collected the results of Mr. Dudley’s prolonged 
