108 BULLETIN 1380, U. S. DEPARTMENT OF AGRICULTURE 
Gallagher, W. J. — Continued. 
1910. Lecture ou rubber sanitation. In Trop. Agr., v . :;4, p. 267—268. 
Report of a lecture given at Johore. Reprinted from Singapore Free 
Press. February 7. 1010. Discussion of Fomes, a branch and stem 
disease, and die-back. 
Gaxdrt r, J. 
1921. Over de kurklaag van heveaschors. hi Arch. Rubbereult. Nederland. -Indie, 
jaarg., 5, p. 389-398. (Meded. Besoekisch Froefstat. Rubl>erserie no. IS). 
English summary : On the cork layer in the bark of Ilevea, p. 397. 
•• This paper deals with the origin, growth, and throwing off of 
the cork in healthy untapped Ilevea trees. It was intended to find out 
whether tissues injured by brown-bast disease are likely to be thrown 
off together with the external periderm layers.'* Conclusion readied 
is that they probably will not he cut off. 
1921. Over den invloed van teer op Ilevea-schors. In Arch. Rubbereult. Nederland. - 
Indie, jaarg. 5, p. 549-562, illus. English summary, p. r>01-562. 
Meded. Besoek, Proefstat. Rubberserie no. 21. Inadvisable to make 
tar applications to black-thread canker. 
1921. Over den steencellenring in de scbors van Hevea. In Arch. Rubbereult. 
Nederland. -Indie, jaarg. 5, p. K',r.-474. Literature cited, p. 474. (Meded. 
Besoekisch Proefstat., Rubberserie no. 19.) English summary: Ou the 
stone cell ring in the cortex of Ilevea, p. 472. 
1922. Over instervingsziekte bij Ilevea. In Arch. Rubbereult. Nederland. -Indie, 
jaarg. G, p. 451-450. (Meded. Besoekisch Proefstat. Rubberserie no. 28). 
English summary : On the die-back disease of Ilevea, p. 456. 
Dying hack of the young twigs may be caused by scarcity of light, 
heavy wind, lightning, bad soil, overtapping, and root disease. These 
show an appearance thai is different from genuine die-back. 
Garxier. R. 
1919. Ceylon rubber planters' manual. 200 p., illus. 
Sanitation of rubber estates discussed. 
GHESQUIEBB. J. 
1925. Travaux entomolosriques an Kasai et au Snnkuru. In Bui. Agr. Congo Beige, 
v. 16, p. 263-270. 
" Liste des principaux parasites observes dans d'autres cultures que 
le coton " (p. 2t>!>) Includes Heterodera radioioola and Ganodenna sp. 
on Hevea. 
Grifkox, F., and MAUBLANC, A. 
1913. Sur quelques champignons parasites des plantes tropicales. In Bui. Soc. 
Myeol. France, tome :!!). p. 244—250, illus. 
Records Dothidella ulei on Hevea brasilienaia in Brazil. 
Groenewece, J. 
1921. Over de oorzaak von rustiness op rubber van Ilevea brasiliensis. Meded. 
Alg. Proefstat. Landb. 11. 19 p., illus. 
Toruhi h< veonensia the most important organism concerned. 
Grove, W. B. 
1921. Mvcological notes. VI. In -lour. Bot., v. 59, p. 311-315. 
Description of Placophomopsis; heveae n. g., n. sp., on Hevea 
brasiliensia from Dganda. 
Hall, A. E. (de Jonge) van. 
1910. Bladziekte in de Hevea's. Bui. Dept. Landb. Surinam 24, 5 p. English 
summary, p. 5. 
The disease is caused by a fungus living on the under side of 
the leaves, making spots which spread in concentric circles. 
Hall. C. J. J. van. 
191(>-2. -, >. Ziekten en plagen der cultuurgewassen in Nederlandsch-Indie in 1915- 
1922. Meded. Inst. Plantenziekten Buitenzorg 20, 29, 33, 39, 16, 53, 58. 
See also Rutgers, Ziekten en plagen der cultuur-gewassen in 
Nederlandsch-Indie jn 1913-1914, Meded. Inst. Plantenziekten Buiten- 
zorg 9 and 15, 1914-15. 
1917. De bruine wortelschimmel (Hymenochaete noxia). In Teysmannia, jaarg. 
28, p. 289-295. , -„ 
Description of disease, recommendations for control, bibliography. 
1919. [Brown bast.] In Publ. Nederland. -Ind. Landb. Synd., jaarg. 11, p. 388-389. 
1919. De zuid-amerikaansche Hevea-bladziekte. In Teysmannia, jaarg. 30, p. 
210-215 
Summary of bulletin by Stahel, Dept. Landb. Surinam Bui. 34, 1917. 
and Rutgers, a. a. L. 
1914 Ziekten van Hevea. 5 p. Weltevredcn. (Introd. Papers. Internat. Rubber 
Cong., Batavia. 1914). English translation, p. 3-5. 
"Three diseases of the Ilevea tree are more or less serious in 
Java. Sumatra, and the Malaya Peninsula: White-root fungus, canker, 
and pink disease." 
Hamaker, CM. . , _ , , _, . , , , T , 
1918. Bijhouden vragenlijst betreffende bruine binnenbast. In Publ. Nederland. -Ind. 
Landb. Synd.. jaarg. 10, p. 886-892. 
Discussion of brown-bast. 
1918. De knobbelkanker in Hevea-plantsoenen. In Publ. Ncderland.-Ind. Landb. 
Synd., jaarg. 10, p. 698-717. 
Discussion of brown-bast and its control. 
1920. 15 jaar rubbercultuur. In Publ. Nederland. -Indre Landb. Synd., jaarg. 12, 
p. 700-708. 
■ and Stokhekker, II. C. __„ 
1919. [Brown bast.] In Publ. Nederland.-Indie Landb. Synd., jaarg. 11, p. 092, 
