30 
Hursh, C. R., The relation of temperature and hydrogen-ion concentration to uredinio 
spore germination of biologic forms of stem rust of wheat. (Phytopathology 1922 
12, 353—361, 7 Textfig.) 
Kasai, Mikio, Observations and Experiments on the Leafroll Disease of the Irish-potat( 
in Japan (Prelim. rep.). (Ber. d. Ohara Inst. f. landw. Forschg. Kuraschiki 1921 
2, 47—77.) 
Lange, Erwin, Krankheiten der Kulturpflanzen. Serie I. Taf. 1—4. (1. Mutterkorn 
2. Getreideroste, 3. u. 4. Brandpilze.) Leipzigu. Berlin (Vereinigte Lehrmittel-Fabriken) 
4 färb. Taf., 16 S. Begleitwort. 
La Rue, C. D., Lightning injury to Hevea brasiliensis. (Phytopathology 1922. 12, 38( 
—390.) 
Lee, H. A., Relation of the age of citrus tissues to the susceptibility to citrus canker 
(Philipp. Joum. Sc. 1922. 20, 331—342.) 
Link, George, and Meier, F. C., Anthracnose of Muskmelons. (U. S. Departm. Agr 
1922. Circ. 217, 4 S., 1 Taf.) 
Lutmann, F. B., The relation of the water pores and stomata of the potato leaf to the 
early stages and advance of tip bum. (Phytopathology 1922. 12, 305—333, 15 Textfig. 
Martin, J. P., Variation in color of pear blight exudate. (Phytopathol. Notes 1922 
12, 399—400.) 
McLean, F. T., and Lee, H. A., Pressures required to cause stomatal infections with 
the citrus-canker organism. (Philipp. Joum. Sc. 1922. 20, 309—321, 2 Textfig.) 
Meier, F. C., and Link, G., Bacterial spot of cucumbers. (U. S. Departm. Agr. 1922. 
Circ. 234, 5 S., 1 Taf.) 
Müller, K., Rebschädlinge und ihre neuzeitliche Bekämpfung. 2., umgearb. Aufl. Karls¬ 
ruhe 1922. 8 -f- 213 S., 1 Farbentaf., 1 Kart., 71 Textabb. 
Nicolas, G., Note de teratologie vegetale et remarques sur les virescences. (Bull. Soc 
d’Hist. Nat. de PAfrique du Nord 1922. 13, 7—12.) 
Nicolle, M., et Magrou, J., Les maladies parasitaires des plantes (Infestation — Infectation), 
Paris 1922. Masson et Cie. (199 S.) 
Orton, W. A., and Meier, F. C., Diseases of Watermelons. (U. S. Departm. Agr. Farmei 
Bull. 1277 (1922). 31 S., 21 Textfig.) 
Penzig, 0., Pflanzen-Teratologie. Zweite, stark verm. Aufl. Bd. III. Bogen 31—39 
u. Titel. Berlin (Gebr. Borntraeger) 1922. 
Picado, C., Atrophie des fleurs consecutive ä l’injection de pollen homologue. (C. R. 
Soc. Biol. 1922. 86, 904.) 
Poole, R. Frank, A new fruit rot of tomatoes. (Bot. Gazette 1922. 74, 210—214, PI. 7.) 
Rankin, W. H., and Hockey, J. F., Mosaic and leaf curl (jellows) of the cultivated red 
raspberry. (Phytopathology 1922. 12, 253—264.) 
Rhathburn, Anna E., Root rot of pine seedlings. (Phytopathology 1922. 12, 213—220, 
1 Textfig.) 
Savin, W. M., The workmanship of the leaf-cutting bee. (Natural History 1922. 22, 
253—257, 9 Textfig.) 
Schaffnit, E., Neuere Untersuchungen über die Brennfleckenkrankheit der Bohnen. 
(Beitr. z. Pflanzenzucht 1922. 6, 25—35.) 
Schilberszky, K., Zur Biologie der bei den Pflaumenbäumen Rostkrankheit erregenden 
Pilze. [Mathem. Term. tud. Iirt. (Magy. Tud. Akad.) 1921. 38, 163—164.] (Ungarisch.) 
Shapovalov, M., Rhizoctonia solani as a potato-tuber rot fungus. (Phytopathology 1922. 
12, 334—336, Taf. 13.) 
Smith, C. 0., Pathogenicity of the olive knot organism on hosts related to the olive. 
(Phytopathology 1922. 12, 271—278, Taf. 21 u. 22.) 
— , E. F., Fasciation and prolepsis due to crown-gall. (Phytopathology 1922. 12, 265 
—270, Taf. 16—20.) 
Snell, W. H., and Howard, N. 0., Notes on Chemical injuries to the eastem white pine 
(Pinus strobus L.). (Phytopathology 1922. 12, 362—368, 2 Textfig., Taf. 14.) 
Stone, R. E., Leaf scorch or mollisiose of the strawberry. (Phytopathology 1922. 12, 
375—380, 3 Textfig.) 
Surcouf, J. M. R., Note sur une maladie du Palmier: Le Doud. (Bull. Soc. d’Hist. Nat. 
de l’Afrique du Nord 1922. 13, 34—35.) 
Winkler, H., Teratologische Notizen. (Österr. Bot. Zeitschr. 1922. 71, 224—226.) 
Wormald, H., Further Studies on the ,,Brown Rot“ Fungi. I. A Shoot-Wilt and Canker 
of Plum Trees caused by Sclerotinia cinerea. (Ann. of Bot. 1922. 36, 305—321, Taf. 
13—14.) 
—, On the Symptoms of wilting of Michaelmas Daisies produced by a Toxin by a Ce- 
phalosporium. (Transact. Brit. Mycol. Soc. 1920 (1922). 7, 283—287.) 
