WHITE-PINE BLISTER RUST. 93 
(45) Gravatt, G. F., and Marshall, R. P. 
1917. Arthropods and Gasteropoda as carriers of Cronartium ribicola in 
greenhouses. In Phytopathology, v. 7 no. 5- p. 368-373. 
(46) and Posey, G. B. 
1918. Gipsy-moth larvae as agents in the dissemination of the white-pine 
blister-rust. In Jour. Agr. Research, v. 12, no. 7. r>. 459-462. 
(47) Grove, W. B. 
1913. The British rust fungi, (Uredinales) ... 412 p., 290 fig. Cam- 
bridge [Eng.]. Bibliography of literature referred to . . . addi- 
tional to those quoted under the several species, p. 393-397. 
(48) IIaack. 
1914. Der Kienzopf (Peridermium pini (Willd.) Kleb.). Seine Uber- 
tragung von Kiefer zu Kiefer ohne Zwischenwirt. In Ztschr. 
Forst- u. Jagdw., Jahrg. 46, Heft 1, p. 3-46, 11 fig. on 2 pi. 
(49) Hawes, A. F. 
1912. Suppression of white pine blister rust disease. Peridermium 
strobi. In 4th Ann. Rpt. Vt. State Forester, 1910, pp. 21-23. 
(50) Hedgcock, G. G., Bethel, Ellsworth, and Hunt, N. R. 
1918. Pinon blister-rust. In Jour. Agr. Research, v. 14, no. 10, p. 411-424, 
1 fig., pi. 54-57. Literature cited, p. 423-424. 
(51) and Hunt, N. R. 
1920. Notes on Peridermium harknessii. In Phytopathology, v. 10, no. 
8, p. 395-397. 
(52) Hennings, P. 
1902. Beobachtungen iiber das verschiedene Auftreten von Cronartium 
ribicola Dietr. auf verschiedenen Ribes-Arten. In Ztschr. Pflan- 
zenkrank., Bd. 12, Heft 3, p. 129-132. 
(53) 1902. Uber das epidemische Auftreten von Cronartium ribicola Dietr. im 
Dahlemer botan. Garten. In Notizbl. K. Bot. Gartens u. Mus. 
Berlin, Bd. 3, No. 28, p. 172-175. 
(54) Hisinger, Edward. 
1876. Peridermium pini (Willd.) Pers. a corticola, dodande Pinus strobus. 
In Bot. Notiser, 1876, p. 75. 
(55) Hostermann. 
1911. Versuch einer Bekampfung von Peridermium pini mit Carboli- 
neum. In Ber. K. Gartnerlehranst. Dahlem bei Steglitz-Beilin, 
1908-9, p. 125-126. 
(56) Howitt, J. E., and McCubbin, W. A. 
1916. An outbreak of white pine blister rust in Ontario. In Phyto- 
pathology, v. 6, no. 2, p. 182-185. 
(57) Hunt, N. R. 
1919. The "iceless refrigerator" as an inoculation chamber. In Phyto- 
pathology, v. 9, no. 5, p. 211-212, pi. 12. 
(58) Jaczewski, A. A. 
1904-08. Ezhegodnik sviedienii o boliezniakh i povrezhdeniiakh kuT- 
turnykh i dikorastushchikh poleznykh rastenii. god 1, 1903, 166 
p., 1904; god 2, 1904, 119 p., 1906; god 3, 1907, 206 p., 1908. (Biuro 
po mikologii i fitopatologii.) In Russian. For English review of 
v. 1 (Yearbook of information concerning diseases and injuries of 
cultivated and wild economic plants) by Ernst A. Bessey, see 
Jour. Mycol., v. 11, no. 78, p. 170-179. 1905. 
