DISEASES OF PLANTS, 647 



shape, the cotyledons are arrested in their development and the canhcle 

 fails to appear. The seed bed was made from sand taken from a field 

 and kept in an air-dried condition for 10 months prior to the time of 

 its use in tlie test. From this it is evident that care should be exer- 

 cised in selecting- soil for seed beds, old land being- very liable to be 

 infested. 



Paris green and London ])urple were applied very successfully to 

 plum and peach trees for the curculio. 



Variability in the spores of Uredo polypodii, B. M. Duggar {Proe. Amer. Acad., 

 lS94,pp. 803-400, figs. 15). 



Tlie homologies of the Uredineae, C. E. Bessky {Amer. Nat., 28 {1894), pp. 

 989-996). 



History of the development of the agcidia and spermagonia of the Uredineae, 

 R. Nku.man {Hi'duigia, 33 {1SD4), No. G, pp. 346-361, pJs. 4). 



Concerning the special parasitism of grain rusts, J. Eriksson {Ber. dent. hot. 

 Ges., 12 {1894), No. 9, pp. 292-330). 



Concerning bruinssiire, J. Pastre {I'log. Agr. et Fit., 12 {1895), No. l,pp. 17-19). — 

 A controversial article. 



Apple canker, C. W. H. Greaves {Gard. Citron., 17 {1895), ser. 3, p. 72).— K 

 description of the attack of Nfclaria ditissima is given and the use of solution of iron 

 sulphate or of ammoniacal copper carbonate is advised. 



A fungus disease (Hormodendron hordei) of barley {Fiihling's Jaiidw. Ztg.,44 

 {1895), No. 1, p>p. 28, 29).— k brief note on the subject. 



The appearance of a root disease (Leptosphaeria circinansj of lucern in 

 Bavaria, F. Wagner {Ztschr. landw. Ver. Bayern, 84 {1894), Sept. and Oct., pp. 774-789, 

 tables 4). 



A disease of -wood vetches, E. Bixdek {Tirol, landw. Blatter, 13 {1894), No. 23, 

 pp. 201, 202). 



Leaf spot of orchids {Gard. Citron. ,17 {1895), ser. 3, pp. 70,71). — A fungus disease 

 is described, and the use of a dilute solution of copper sulphate as a fungicide is 

 advised. All badly diseased leaves should be removed and burned. 



Soaking seed barley in fungicide solutions, Hollrung {Braiinsclnc. landtc. 

 Ztg., 62 {1894), No. 51, pp. 214, 215). 



Treatment of club root of cabbage, Seltensperger {Prog. Agr. et Fit., 12 {1895), 

 No. 1, pp. 20, 21). — The application of quicklime to soil is advised as a preventive 

 measure. 



CBdema of the tomato, G. F. Atkinson {Nev> York Cornell Sta. Rpt. 1893, pp. 99-128, 

 pis. 8). — A reprint of Bulletin 53 of the station (E. S. R., 5, p. 55). 



The spraying of orchards, E. G. Lodeman {Neic York Cornell Sta. Rpt. 1893, pp. 

 263-302, figs. 4, dgms. 2).— A reprint of Bulletin 60 of the station (E. S. R., 5, p. 683). 



Treatment of anthracnose by sulphuric acid, L. Degrully {Prog. Agr. et Fit., 

 12 {1895), No. 2, pp. 20-31). 



Notes on the chemistry of the copper salt fungicides, F. T. Shutt {Ontario 

 Fruit G rowers' Assn. Bpt. 1803, pp. 77-79). — Chemical notes on the preparation, com- 

 position, and action of Bordeaux mixture, eau celeste, copper carbonate, and 

 ammoniacal copper carbonate. 



The systematic differences between various related parasitic fungi and the 

 basis of their biological relations, P. JIagnus {Hcdicigia, 33 {1894), No. 6, jjp. 

 362-366). 



A mycological flora of Montpellier, G. Boyer and A. de Jaczewski {Bid. Soc. 

 Bot. France, 40 {1893), 2d ser., No. 3, pp. CCLX-CCXCFIII, figs. 12).— K list of 

 species with critical notes and descriptions of new species. 



Legislation against plant pests {Garden and Forest, 8 {1895), pp. 41, 42). 



