1917] ENTOMOLOGY. 253 



abnormalities of E. brasiliensis include forms more or less reliably identified 

 with Dothidella ulei, Fusicladium macrosporum, Phyllachora huberi, Aposphceria 

 ulei, Colletotrichum (Glceosporium) hevecc, Pestalozzia palmarum, and Phyllo- 

 sticta sp., besides the supposedly new species Scolecotrichum hevew, Fusarium 

 hevew, Zygosporium paracnse, Cercospora hevew, and Meliola hevece, some of 

 the above being compared with other forms. 



Trunk and branch diseases mentioned in the second article as of considerable 

 importance include those caused by Fusicladium macrosporum and G. albo- 

 rubrum. Organisms of less importance are Cephaleuros virescens, Botryodi- 

 plodia thcobromw, a Corticium, and a Microthyrium. 



Diseases of Hevea in Ceylon, T. Fetch {Trans. 3. Intemat. Cong. Trop. 

 Agr. 1914, vol. 1, pp. 596-607). — A preliminary abstract summarizing the prin- 

 cipal points in this paper has been noted previously (E. S. R., 34, p. 849). 



The effects of asphyxiating gases on forest vegetation, F. DOe {Rev. Eaux 

 et Forets, 54 {1916), Nu. 7, pp. 192-195; abs. in Forestry Quart., U {1916), No. 

 4, p. 748). — Giving a brief account of the results of gas attacks in the Cham- 

 pagne in October, 1915, the author states that while grapevines, cruciferous 

 garden crops, and deciduous forest trees were not seriously injured, ornamental 

 plants were severely damaged. Conifers showed the injurious effects in a yel- 

 lowing and shedding of leaves, recovery from which had become apparent, in 

 some cases at least, by May 15, 1916. 



A beech disease due to Nectria ditissima, M. Guinieb {Bui. Soc. Path. Veg. 

 France, 2 {1915), No. 2, pp. 91-92). — The author records, supposedly for the 

 first time, a mode of attack by A^. ditissima, in which the fungus starts on a 

 young branch and kills the tissues for a certain distance, thus causing the 

 death of the portion beyond. 



Galls on juniper, P. Hakiot {Bui. Soo. Path. Veg. France, 2 {1915), No. 1, 

 pp. 8-10, fig. 1). — A description is given of a juniper gall associated with a 

 fungus which is thought to be Ceratostoma juniperinum, hitherto unknown in 

 France. 



Peridermium strobi on Swiss pine, E. Webth {Mitt. K. Biol. Anst. Land u. 

 Forsttc, No. 16 {1916), pp. 14, 15). — A disease causing blister rust on Swiss 

 pine was tested as to Its ability to attack Ribes. Experiments proved successful 

 in tliose cases in which the infected Ribes plant was kept under a bell glass. 

 The fungus is therefore considered to t)e identical with P. strobi. 



Dry rot, P. Gkoom {Jour. Bd. Agr. [London^, 23 {1916), No. 5, pp. 465-474, 

 figs. 12). — A brief discussion is given of Merulius lacrymans, Coniophora 

 cerebella, and Polyporus vaporarius, including conditions favorable to infection 

 and development and measures for control of the dry rot fungi, which are said 

 to cause immense losses annually in the United Kingdom. 



ENTOMOLOGY. 



The nat\ire of the polyhedral bodies found in insects, R. W. Glaseb and 

 J. W. Chapman {Biol. Bui. Marine Biol. Lab., Woods Hole, SO {1916), No. 5, 

 pp. 367-390, pis. 3). — The authors' Investigations of the nature of polyhedral 

 bodies carried on in connection with the work previously noted (E. S. R., 33, 

 p. 856) have been summarized as follows: 



" Polyhedral bodies are found in many different species of lepidopterous 

 larva?. The bodies are specific for a certain type of disease. The polyhedra 

 vary in size in the different species. There exists a striking similarity in shape 

 between the polyhedra found in different species. The polyhedra are struc- 

 turally complicated. They arise in the nuclei of certain tissue cells. Cyto- 

 plasmic inclusions are found in certain diseases of higher animals. Nuclear in- 



