DISEASES OF PLANTS. 641 



Lumbering industry of the Philippines, J. R. Arnold (U. 8. Dept. Com., 

 Bur. Foreign and Dom. Com., Spec. Agents 8er., No. 88 {1914), PP- 22). — This 

 report reviews briefly the forest resources of the Philippines, the degree to which 

 they are being exploited, the px'ospects for Increased activity in lumbering, the 

 kind of machinery now used, and the selling methods usually followed. 



Progress report on forest adnxinistration in the Northwest Frontier 

 Province for 1912-13, M. R. K. Jebram (Rpt. Forest Ad)ni)i. Northwest 

 Frontier Prov., 1912-13, pp. 3 -}-I I +15+ XXV I). —This is the customary prog- 

 ress report relative to the administration of the state foi*ests, including a 

 financial statement for the year 1912-13. All important data relative to forest 

 areas, surveys, working plans, protection, and miscellaneous work, silvicultural 

 operations, yields, revenues, etc., are appended in tabular form. 



DISEASES OF PLANTS. 



Notes on plant diseases of Connecticut, G. P. Clinton (Connecticut State 

 Sta. Rpt. 1914, pt. 1, pp. 1-29, pis. 7). — After giving a discussion of the relation 

 of weather conditions to the diseases prevalent during the year, the author 

 describes a number of diseases which are either new to the State or not pre- 

 viously reported upon the host plants given. 



Among these are fasciation, frost bands, syncarpy, and water core of apple, 

 heart rot of celery {Bacillus carotavorus) , corn mold {Cephalothecium 

 roseum), Shasta daisy leaf siwt {Scptoria leucanthemi) , rust of Chinese 

 .juniper {Oymnosporangium harceanum), arsenical burn of Lima beans, oil 

 injury to hard maple, parsnip soft rot {B. carotovorus), scrub pine rust 

 < Peridermium conipto?iiw) , poplar crown gall {Bacterium tumefaciens), potato 

 blackleg {Bacillns phijtophthorus), privet anthracnose (Olomerella cingulata), 

 Selerotium disease of redtop (S. rhizodes), mechanical spotting of rose {Pilo- 

 iolus crystaUvmis) , salsify soft rot {B. carotovorus), phyllodiniation or string 

 leaves of tobacco, and orange leaf rust of wheat (Pucciiiia triticina). 



Report of the imperial mycologist, E. J. Butler {Rpt. Agr. Research Inst, 

 and Col. Pusa [India], 1912-13, pp. 55-69). — Besides other information this 

 report deals with a wide range of studies on diseases of plants, among which 

 may be noted ufra, eelworms, bunt, false smut, and gwa-bo (probably due in 

 part to Selerotium oryzce) of rice ; red rot and three minor diseases, not yet 

 determined as to cause, of sugar cane; Colocasia blight and potato blight; 

 poppy blight (caused by Peronospora arhorescens) ; orange and yellow rust of 

 wheat; a fungus disease of peanuts; cotton and sesame wilts; anthracnose of 

 sisal hemp (due to Colletotrichum agaves) ; indigo diseases (thought to be of 

 other than fungal origin) ; some phanerogamic parasites; and other miscellane- 

 ous plant troubles and investigations. 



A species of Rhlzophidium parasitic on the oospores of various Perono- 

 sporaceee, I. E. Melhus {Phytopathology, 4 {1914), ^^o. 2, pp. 55-62, pi. 1). — 

 In conducting some studies on oospore germination the author encountered con- 

 siderable difficulty on account of the presence of the parasite R. pollinis. At- 

 tempts were made to germinate the oospores of Cystopus hliti fi-om leaves, 

 stems, and flowers of Amaratithus rctroflexus, but many of them were destroyed 

 by the parasitic organism. Subsequently the oospores of C. candidus and 

 C. cuiicus were exposed to infection by transferring infected oospores of G. 

 bliti, and infection resulted in ten days. In a similar way the oospores of 

 Peronospora effusa and Sclerospora graminicola showed the infection after 

 six days. 



Later experiments were carried on with pollen from the hyacinth and the 

 calla lily, which showed that the pollen also was parasitized by R. pollinis. 



