186 PATHOLOGY [Bot. Absts., Vol. VI, 



1276. Lingelsheim, A. Uber "steinreizker" in Schlesien. ["Steinreizker" in Silesia.] 

 Hedwigia 61 : 380-382. 1920 — See Bot. Absts. 6, Entry 1220. 



1277. Lopriore, G. Recent biological researches on the rusts affecting cereals. Inter- 

 nal Rev. Sci. & Practice Agric. 10: 742-746. 1919. 



1278. Magrou, J. Immunite des plantes annuelles vis-a-vis des champignons symbio- 

 tiques. [Immunity of annual plants with respect to symbiotic fungi.] Compt. Rend. Acad. 

 Sci. Paris 170: 616-618. 1920. — Seeds of Orobus coccineus (Lathyrus sphaericus) were sown in 

 soil infested with the mycorrhiza of Orobus tuberosus. The roots were invaded by the fungus, 

 and after 40 days appeared the same in microscopic section as do the roots of Orobus tuberosus. 

 After 70 days, however, the roots had completely destroyed the fungus by "phagocytosis." 

 The immunity of Orobus resembles that of Mercurialis in that "phagocytosis" occurs some 

 time after invasion by the fungus, rather than at the time of infection as is the case in Sol- 

 arium. — C. H. and W. K. Farr. 



1279. Murrill, W. A. Oudemann's work on fungi. Mycologia 12: 169. 1920. — See 

 Bot. Absts. 6, Entry 169. 



1280. Neger, F. W. Die Krankheiten unserer Waldbaume und wichtigsten Gartengeholze. 

 Kurzgefasstes Lehrbuch fur Forstleute u. Studirende der Forstwissenschaft. [Diseases of 

 forest trees and important orchard trees.] viii + 286 p., £34 fig. Ferdinand Enke: Stuttgart, 

 1919. — "A compact text for foresters and students of forestry." 



1281. [Pennell, Francis W.] Index to American mycological literature. Mycologia 12: 

 172-174. 1920. 



1282. Quaintance, A. L., and E. H. Siegler. Insecticides, spraying and fruit insect 

 control. Better Fruit 14 8 : 3-6, 40. Feb., 1920.— A popular summary of fruit-insect con- 

 trol methods. A spray-dilution table and a spray-combination diagram are given. — A. E. 

 Marneek. 



1283. Reinking, Otto A. Diseases of economic plants in southern China. Philippine 

 Agric. 8: 109-134. 3 pi. 1919. — This paper presents the results of a collecting trip made dur- 

 ing May and June in the agricultural regions of southern China. Special attention was given 

 to citrus diseases. The host plants are listed alphabetically according to the common names 

 used in the Philippines; Latin names are also given, and in many cases the common Chinese 

 names. Under each host is presented a list of the diseases which attack it, together with 

 names of causal organisms, brief descriptions of symptoms, estimates of losses, and sugges- 

 tions regarding control measures. Emphasis is placed upon the necessity of disease surveys 

 in connection with plant quarantine. — S. F. Treleasc. 



1284. Rumbold, Caroline. Giving medicine to trees. Amer. Forestry 26: 359-362. 5 

 fig. 1920. — An account of injection experiments, the purpose of which was to control or elimi- 

 nate the fungus causing chestnut blight. The experiments were performed in Pennsylvania, 

 the trees being for the most part Paragon scions grafted on native chestnut stock. Fifty-six 

 organic and inorganic substances in solution were injected. Dilute solutions of lithium car- 

 bonate and lithium hydroxide injected in the spring and early summer months checked the 

 progress of the fungus, but the results were not permanent. The work, which has been in 

 progress several years, should be regarded as only preliminary. — Chas. H. Otis. 



1285. Schaffnit, G. Untersuchungen uber die Brennfieckenkrankheit der Bohnen 

 [Investigations concerning the anthracnose of beans.] Mitteil. Deutsch. Landw. Ges. 25: 299. 

 1920. — The author discusses the work under way at the Bonn-Poppelsdorf Experiment Station. 

 The perithecial form, Glomerella lindemuthiana, has not yet been found in Germany. Conidia 

 from pods of the crop of 1919, which were preserved in a cold but sheltered place were still 

 capable of germination on February 12, 1920. The author discusses the influence of air cur- 



