388 PATHOLOGY [Bot. Absts. 



2668. Jensen, C. N. Blossom infection by smuts. Trans. Utah Acad. Sci. 1: 106-113. 

 1918. 



2669. Johnson, M. O. [Soil investigation.] Hawaii Agric. Exp. Sta. Rept. 1918: 23-26. 

 PL 6. 1919.— See Bot. Absts. 4, Entry 1663. 



2670. Katsufugi, Koichi. "Yellow dwarf," a new nematode disease of soy bean. Ann. 

 Phytopath. Soc. Japan l 2 : 12-16. 1919. — A disease of the soy bean {Glycine hispida Maxim.) 

 called "yellow dwarf" is reported to be endemic in occurrence and of increasing importance 

 in the vicinity of Date-mura in the Province of Iburi (the southern part of Hokkaido). The 

 disease was first observed by Professor S. Ito in the summer of 1915, who from observations con- 

 cluded that it was due to a parasitic nematode. Affected plants are yellow and dwarfed, those 

 slightly affected producing but few seed, while badly affected plants produce no seed. From 

 morphological and biological characters it is concluded that the cause of the disease is Hetero- 

 dera schachli. From information at hand it is considered that the disease is confined to the 

 southern part of Hokkaido where the winters are comparatively mild. Observations lead to 

 the conclusion that the kidney-bean and the Azuki-bean (Phaseolus mungo var. subtriolata) 

 are also attacked. Varieties of the soy bean, Yoshioka and Oyachi, seemed to be the most 

 resistant, while the varieties Kotsubu and Meziro are the most susceptible. Incomplete 

 experiments for control have given some promise from an economic standpoint. — L. M. 

 Massey. 



2671. Keller, G. N. Tobacco growing in Ireland. The experiments in 1918. Jour. 

 Dept. Agric. Ireland 19: 298-302. 1919.— See Bot. Absts. 3, Entry 1372. 



2672. Kimtjra, Noriyoshi. The effect of X-ray irradiation on living carcinoma and sar- 

 coma cells in tissue culture in vitro. Jour. Cancer Res. 4: 95. 1919. 



2673. K[irchner], O. [Rev. of: Fallada, O. Zur Riibensamenbeize mit Schwefelsaure 

 (On treatment of mangel seed with sulphuric acid.) Mitt. Chem. Techn. Versuchsst. Zen- 

 tralv. Rubenzuckerindust. Oesterreichs u. Ungarns Ser. IV, No. 79. Vienna. 1917.] Zeit- 

 schr. Pflanzenkrankh. 29:55. 1919.— Since, during the war, Hitner's excellent method of 

 treating beet seeds (fruits) with concentrated sulphuric acid could not be maintained, experi- 

 ments were tried on the effect of treatment with less concentrated solutions. These indi- 

 cated that sulfuric acid of 60° B. could not replace the concentrate, since the germinative 

 energy is not nearly so stimulated as is the case with the concentrated acid. However, a 

 method recommended by Mucha, viz.: to treat the seed in 53° acid, using a warm solution, 

 gave commendable results, particularly after previous soaking for 6 hours in water. — 

 H. T. Gussow. 



2674. K[irchner], O. [Rev. of: Lustner, G. Ueber Ersatzmittel bei der Schadlings- 

 bekampfung im Weinbau. (On substitutes in the control of vine pests.) Jahresb. Verein. 

 Angew. Bot. 14:87-94. 1916.] Zeitschr. Pflanzenkrankh. 29:56. 1919.— Dusting against 

 mildew with road dust, kaolin, gypsum, or cement is compared with the use of sulphur. 

 Sulphur cannot under all conditions be replaced by neutral dusting compounds. Perozid 

 may replace copper sulphate. Upsulun severely injures the green parts of grapes. Cupron 

 appears to be effective against Peronospora. Bordola paste acts the same as bordeaux and 

 perozid mixture. — H. T. G&saow. 



2675. K[irchner], O. [Rev. of: Lustner, G. Die Bekampfung der Rebkranl^eiten 

 wahrend des Krieges. (The control of grape diseases during the war.) Mitt, iiber Weinbau 

 u. Kellerwirtschaft. 1917. No. 3.] Zeitschr. Pflanzenkrankh. 29: 57. 1919.— For the con- 

 trol of Oldium, applications of sulphur, as well as so-called "war-sulphur," must be made in 

 good time to be effective, i.e., once before and once after flowering, and later on as soon as 

 signs of the disease are observed. Perozid mixture, prepared like bordeaux mixture, is as 

 effective against slight attacks of Peronospora as the latter. Botrytis cinerea causes besides 



