160 EXPERIMENT STATION RECORD. [Vol.40 



Black canker of chestnut, G. Briosi and R. Farneti (Atti 1st. Bot. Univ. 

 Pavia, 2. ser., 15 (1918), pp. 43-51, figs. 2). — Referring to a previous note by the 

 authors (E. S. R., 22, p. 749) and to comments thereon by Griffon and Mau- 

 blanc (E. S. R., 24, p. 652), the authors give an account of comparisons tending 

 to show that Coryneum perniciosum, FuHcoccttm, perniciosum, and Mclanconis 

 perniciosa should be considered as distinct from .1/. modonia. 



Mycological and pathological notes, II, M. Turconi and L. Maffei {Atti 

 1st. Bot. Univ. Pavia, 2. ser., 15 (1918), pp. 143-149. pi. 1).— This series adds to 

 the first (E. S. EL, 35, p. 45) the new genus Chaetoceratostoma. represented by 

 C. hispidum found on dead leaves of Castanea vesca in Liguria. also by the 

 new species Macrosporium sophora; in living leaves of Sophora japonim and 

 Gibberella l/riosiana on branches of S. japonica in the botanical garden at 

 Pavia. 



Fomes applanatus in South Africa, and its effect on the wood of black 

 ironwood trees (Olea laurifolia). P. A. van dkr But. (No. African Jour. Bd., 

 14 {1918), No. 11. pp. 485-492. pU. 4- fid*- 2).—I\ applanatus is dealt with as re- 

 gards its synonymy anil nutritive relations, especially with O. laurifolia, al- 

 though the fungus is known to occur on a large number of other hosts. 



On black ironwood the fungus is regarded as a facultative parasite, gaining 

 entrance through wounds at about the soil level and growing into the healthy 

 wood. The organism continues to form sporophores after it has killed the host. 

 Its action on the wood is described as one of dellgnificattOD followed by dig 

 Hon. A description of fungus is given, and attention is also drawn to forms 

 of the same fungus winch occur in South Africa. 



Control measures are limited to prevention by forest sanitation, as the 

 destruction of sporophores and of diseased wood. 



Fomes officinalis, a timber-destroying fungus. J. II. E.u'i.r. (Trans. Roy. 

 Canad. Inst.. 11 {1917), No. 2. pp. (85 809, pis. 8, fig. /).— The author gives the 

 results of a study, in its various aspects, of /•'. officinalis, the cause of red 

 heart rot of conifers, both living and dead. 



The fungus is said to gain access to the living host as a wound parasite. It 

 OC< urs in Europe and Asia on Lari.r < urnpan and /,. sihirira. and in British 

 Columbia. Ontario. Quebec, Arizona. California. Oregon, Washington, Montana, 

 Nevada. Idaho, Wisconsin. Michigan, and Wyoming On 4W( '"/-, |. magni- 



fied, 1. grandis, /.. occidentals, /.. laricina, Picea engeUnanni, /'. Htcheruia, 

 Finns lamhvrtiana. P. murnn/ana, I'. ponderoSO, I', irffrri/i. P. ttrobUS, P. RtOfft* 

 ticola. f'st udotsuga taxifolia, Tsuga In /. rophylla, and T. mertensiana. 



ECONOMIC ZOOLOGY— ENTOMOLOGY. 



A sketch of the natural history of the District of Columbia, together with 

 an indexed edition of the U. S. Geological Survey's 1917 map of Washington 

 and vicinity. W. L. McAtee (liul. Biol. Sor. Wash., Xo. 1 (1918), pp. l',2. pis. 

 2). — The occurrence and distribution of plants and animals in the District of 

 Columbia is discussed in connection with a classified bibliography and an in- 

 dexed map. 



The genera of fishes from Linnteus to Cuvier. 1758—1833. seventy-five 

 years, with the accepted type of each, D. S. Jordan and P.. W. K\ii:m\nn 

 {Leland Stanford, jr.. Univ. Pubs.. Univ. 8er., inn. [Xo. 871, pp. 181).— A con- 

 tribution to the stability of scientific nomenclature. 



About the biology of Mus concolor. L. Ottbn (M< drd. Burgorl. '<< »• 

 Diensi Vederland, Indie", Xo. 6 (1911). pp. 82-119, pi*. 5). — A report of studies 

 of the small house rat. 



