DISEASES OP PLANTS. 31.") 



the region imlicated aic AVliitc^ pine, red cedar, jack pine (I'iiiiia rigichi), bald cypress, 

 white cedar, spruces, hemlDck, white oak, chestnut, hickory, and bhick oak. A 

 list of secondary vahie includes the locust, rock oak, sugar maple, heech, birch, and 

 cherry. 



Forest studies in Minnesota ((Uirden and Forest, 9 {1896), No. 451, ][>. 413). — An 

 editorial note is given of proposed studies to be undertaken by the University of 

 Minnesota on second growth timber on stump lands. 



A new fir from Arizona, C. H. Mkkkiam {Proc. Biol. Soc, Wushingion, 10 {1896), 

 pp. llo-llS.figs. 2). — Ah'ies arhonica n. sp. is figured and described. So fur as known 

 this tree is conlined to the San Francisco and Kenilrick ^lountaius in Arizona. 



Facts gathered by observation and experience relating to the ■white pine, E. 

 llEK'SKV (/;*(/. Jlussei/ Inst , 2 {1890), pt. 5, pp. 373-385). — Notes are given relative to 

 the rate of growth of Finns strobns. 



Willow culture, L. Pkcioli {La cnltura del salicio. Firenze: S. Landi, 1896, pp. 

 Til, 24:, jigs. 40: ahs. in AUg. Forst. undJagd. Ztg., 1890, pp. 321, 322). 



The Canada poplar in Belgium {BuJ. Soc. cent. Forst. Belgiqiie, 1890, Oct., pp. 

 696-099). 



Native shrubs and trees of South Dakota, T. A. Williams {South Dakota Sta. 

 Bpt. 1895, BnUetins,pp. r-»5-i,?.?). —Bulletin 43 of the station (E. S. R., 7, p. 507) is 

 bound with the Annual Report. 



Forestry, L. C. Corbett {South Dakota Sta. Bpt. 1895, Bulletins, pp. 127-151). — 

 Bulletin 41 of the station (E. S. R., 7, p. 507) is bound with, the Annual Re^jort. 



Tree growth, A. C. Forbes {Gard. Chron., ser. 3, 20 {1896), Xo. 513, p. 502).— Koies 

 are given of the relation of flow of sap to growth, and the statement is made that 

 a larch trunk cut during the summer and branches trimmed off continued to make 

 considerable additions to the year's ring of wood. 



Growth of trees in New Zealand, T. W. Adams (Gard. Chron., ser. 3, 20 {1896), 

 Xo. 512, p. 458). — Tabulated informatiou is given as to the growth of more than 80 

 species of artificially })lanted trees. 



Reforesting w^aste lands in Holland, J. Gifford {Garden and Forest, 9 {1890), Xo. 

 452, p. 423). 



Draining woodlands, A. C. Forbes {Gard. Chron., ser. 3, 20 {1890), Xo. 511, pp. 

 428, 429). 



The forests in the vicinity of Crater Lake, Oregon, F. Y. Coville {Forest 

 Leaves, 5 {1890), Xo. 11, p. 103). 



Interesting foreign trees for propagating in France, P. Mouillefert {Jour. Agr. 

 Prat., 60 {1896), II, Xo. 39, pp. 454-400, figs. 4). 



The practical value of forestry to the surface of the country, F. H. H^un {For- 

 est Leaves. 5 {1890), Xo. 10, pp. 154-150). 



DISEASES OF PLANTS. 



Bordeaux mixture, its chemistry, physical properties, and toxic 

 effects on fungi and algae, W. T. Swingle ( TJ. H. Dept. Agr., Division 

 of Ycgeiahle rhij.siology and J*((iJtoIo<]y Bid. 'J, j^P- 37). — The iiuthor pre- 

 sents Ji summary of our present knowledge regarding this valuable 

 fungicide, and draws conclusions from Lis owu and others' observations 

 in which he points out lines of work whose further investigation is 

 thought to be desirable. 



Freshly made Bordeaux mixture is said to consist essentially of 

 ('U]ui<; hydroxid and calcium sulphate in solid form, suspended in a 

 lu^arly or quite saturated solution of calcium sulphate and calcium 

 hydroxid in water. The most soluble constituents are calcium sul- 

 phate and calcium hydroxid, which are present in considerable amount 



