50 ■ EXPERIMENT STATION RECORD. 



Plant sanitation in Malaya {hidia-RuMcr Jour., Jfi (191^), No. 7, pp. 19, 

 20). — The text of the enactment of 1913 for the protection of trees, plants, and 

 cultivated products in the Federated Malay States is given. 



Soil alkalinity and plant chlorosis, J. Crochetelle {Jour. Agr. Prat., n. scr., 

 26 {1913), Nos. Jf7, }}p. 657, 658; 49, pp. 7^5-727).— Results of experiments in 

 heavy liming of sandy soil bearing colza are held to show that the assimila- 

 tion of phosphoric acid is hindered by the presence of much lime, and that 

 this latter condition is in causal relation with chlorosis on alkaline soils. 



Biological treatment of diseases in plants, C. von Tubeuf {Naturio. Ztschr. 

 Forst u. Landw., 12 {1914), No. 1, pp. 11-19). — Pinus lamhertiana, already 

 infected with blister rust {Cranartium rihicolum), was dusted with conidia of 

 TubercuUna maxima late in May, 1913. Early in November the latter fungus 

 was found to have developed considerably and to have dusted with conidia 

 the neighboring pustules of the former. Observations are to be continued 

 with the hope that T. maxima may prove able to weaken and check C. rihicoJuin 

 at least on the larger pines. 



A bibliography is appended. 



Chemical means for combating pests of agricultural plants, E. Molk 

 {Fiihling's Landw. Ztg., 62 {1913), No. 23, pp. 822-838).— This is a general 

 review of numerous chemical preparations and their employment and value 

 as protection against vegetable or animal parasites during recent years, as 

 reported by various investigators. 



Some factors influencing the efficiency of Bordeaux mixture, L. A. Haw- 

 kins {Prog. Agr. et Vit. {Ed. VEst-Centre), 35 {1914), Nos. 3, pp. 72-78; 5, pp. 

 142-I46; 7, pp. 210-215). — The substance of this article has already been noted 

 from another source (E. S. R., 28, p. 537). 



Resistance of grains to parasitic fungi, N. Vavilov {Trudy Selelcts. Stant- 

 sU Moskov. Selsk. Klioz. Inst. {Arb. Vers. Stat. Pflansenziich. Mask. Landw. 

 Inst.), 1 {1913), No. 1, pp. 1-108, pis. 3). — This is an account of studies regard- 

 ing susceptibility of wheat and oat varieties to fungus attack ; also regarding 

 the relation of their disease resistance to structure and environment and the 

 value of these characters as criteria for classification. The results are given 

 in considerable detail. 



Parasitic injury to winter grains, K. Stobmee and R. Kleine {Illus. Landw. 

 Ztg., 33 {1913), No. 31, pp. 296-298, fig. i).— This is substantially the same as 

 an article previously noted (E. S. R., 29, p. 446). In that notice, the strength 

 of the corrosive sublimate solution recommended, which was by mistake given 

 as 0.001 per cent, should have been given as 0.1 per cent, or 1 : 1000. 



Smut protection and the influence of cropping time on output and health 

 of crop, H. C. Mulleb, E. Molz, and O. Morgenthaler {Landw. Vers. Stat., 

 83 {1913), No. 3-4, pp. 211-220). — Giving tabulated results of studies on summer 

 wheat and barley, the authors show that late planting decreased the attack of 

 Holminthosporium on barley, but increased that of loose smut on wheat ; and 

 that attack on the latter grain by the wheat fly {Chlorops twiiiopus) was enor- 

 mously increased by planting a few weeks later. It is stated also that later 

 planting of summer wheat decreased sensibly the germiuability of the result- 

 ing seed grain and that the grain from stalks infested by Chlorops showed lower 

 germiuability than did wheat from normal grains. 



Studies on the biology of loose smut of barley, J. Broili and W. ScHiK0Rr.A 

 {Ber. Deut. Bot. Oesell, 3t (1913), No. 7, pp. 336-339, fig. /).— Pui-suant to 

 previous work of Broili (E. S. R., 24, p. G47). the authors made a studj' of 

 Ustilago hordei nuda in embryos of grains selected from barley artificially in- 

 oculated. 



