(186) 
Parrott, P. J. and Schoene, W. J. The apple and cherry ermine moths. (Techn. Bull. 
agr. Exp. Stat. Geneva, N. Y. [1912], 40 pp., ill.) 
Pater, B. Mycologisches aus Ungarn. (Zeitschr. f. Pflanzenkrankh. XXIII [1913], 
H. 5, p. 260— 262.) 
Pavarino, L. Ricerche sul Roncet. (Riv. Patolog. Veget. VI [1913], No. 6—7, 17 pp.) 
Pennsylvania Chestnut Tree Blight Comission. The Chestnut. Tree. Methods and 
specifications for the utilization of blighted Chestnut. (Bull. VI [1913], 16 pp.) 
Peteh, T. Diseases and Pests Legislation in Ceylon. (Departm. of Agricult. Ceylon Bull. 
No. 6 [1913], p. 79—93.) 
— Legislation against the diseases and pests of cultivated plants in Ceylon. (Dep. of 
Agric. Ceylon, Bull. [1913], p. 79—93.) 
Petri, L. Sul significato patologico dei cordoni endocellulari nei tessuti della vite. 
(Atti. r. Acc. Lincei Roma 2. XXII [1913], p. 174—179, 1 f.) 
Plahn-Appiani, H. Brandpilze. (D. Landw. Presse XL [1913], p. 823—824.) 
Probst, R. Das diesjährige Auftreten des Frostnachtschmetterlings. (Die Garten- 
welt XVII [1913], p. 686.) 
R.etB. Le chancre des arbres fruitiers. (La Quinzaine coloniale XVII [1913], p- 678.) 
— Un nouveau parasite du Cacoyer. (Ibidem p. 678.) 
Reed, H. S. and Cooley, J. S. The effect of the Cedar Rust upon the assimilation of 
carbon dioxide by Apple leaves. (Virginia Agr. Exp. Stat. Rept. 1911/12 [1913], 
p- 91—94, 1 fig.) 
— The effect of Gymnosporangium on the transpiration of Apple trees. (Virginia 
Agr. Exp. Stat. Rept. 1911/12 [1913], p. 82—90, 1 fig.) 
— The enzyme activities involved in certain fruit diseases. (Virginia Agr. Exp. Stat. 
Rept. 1911/12 [1913], p. 51—77.) 
Reed, H. S. and Crabill, C. H. Plant diseases in Virginia in 1911 and 1912. (Virginia 
Agr. Exp. Stat. Rept. 1911/12 [1913], p. 35—50, 13 fig.) 
Reed, H. S. and Holmes, F. S. A study of the winter resistance of the uredospores of 
Puccinia coronata. Cda. (Virginia Agr. Exp. Stat. Rept. 1911/12 [1913], p- 78 
bis 81, 1 fig.) 
Reh. Arbeiten über amerikanische Schad-Insekten. gen Pflanzenkr. XXTI 
[1913], p. 408—412.) 
Reitmair, 0. Beiträge zur Biologie der Kartoffelpflanze mit besonderer Berücksichti- 
gung der Blattrollkrankheit. (Zeitschr. landw. Versuchswesen Österr. XVI [1913], 
P- 653— 717.) 
Riehm, E. Prüfung einiger Mittel zur Bekämpfung des Steinbrandes. (Ber. Kaisl. 
Biolog. Anst. f. Land- und Forstwirtschaft im Jahre 1912 Nr. 14 [1913], 2 pp-) 
Rivera, V. Primo contributo allo studio della recettivitä della quercia per l’oidio. 
(Atti. R. Accad. Lincei Roma 2. XXII [1913], p. 168—173.) 
Robinson, W. On some relations between Puccinia malvacearum (Mont.) and the tissues 
of its host plant (Althaea rosea). (Mem. and Proceed. Manchester Lit. and Philos. 
Soc. LVII [1913], p. I—24, 2 Pls. and Fig.) 
Rorer, J. B. The Suriname witch-broom disease of cacao. (Circular no. 10 of the 
Board of agricult. Trinidad and Tobago [1913], 13 pp.) 
Roux, Claudius. Rouillie du Ble et Epine-Vinette curieuses observations du Lyonnais 
Claude Imbert en 1769. (Ann. Soc. Bot. Lyon. XXXVII [1912] 1913, Notes et 
Mem. p. 137—142.) 
Rutgers, A. A. L. De krulziekte van katjang tanah. (Arachis hypogaea L.) (Med. 
Afd. Plantenz. Buitenzorg [1913], 5 pp., 2 pl.) 
