ECONOMIC ZOOLOGY ENTOMOLOGY. 53 



The whitening- of the mountain cedar (Sabina sabinoides ) , F. D. PIeald 

 and F. A. Wolf (Mycologia, 2 (1910), No. 5, pp. 205-212, pi. 1, figs. 3).— The 

 anthers attribute the characteristic white markings of the mountain cedar, as 

 seen throughout portions of Texas, to a fungus which is claimed to be more or 

 less parasitic, as it occurs most abundantly on the young twigs and trees, 

 finally killing the affected branches by surrounding them and corroding the 

 bark until the cambium layer is entirely destroyed. 



The fungus is claimed to be new to science, and is described under the name 

 Cyanospora alUccdrw u. g. and sp., belonging apparently to the Ceratostomacese, 

 and closely related to the genus Ophioceras. 



Parasitic root diseases of the Juncacese, E. J. Schwartz {Ann. Bot. [Lon- 

 don], 24 (1910), No. 95, pp. 511-522, pi. 1).—A study was made of the tubercles 

 or other swellings which are frequently found on the roots of various species 

 of Juncus and Cyperus, a preliminary account of which has been given else- 

 where (E. S. R., 23, p. 50). 



The author found that the roots of some of the species of Juncus are subject 

 to the attack of two distinct parasites, Sorosphwra junci and Entorhiza cyperi- 

 cola. The life history of 8. junci corresponds very closely to that described 

 for S. veroniccc. Infection experiments with Sorosphsera showed that the root 

 hairs are penetrated by the amoeba forms, the parasite passing into the roots. 

 When attacked by this organism the roots are not hypertrophied, whereas those 

 attacked by the Entorhiza form tubercles. The infection by the Entorhiza is 

 probably through the root hairs. 



In addition to these fungi the author reports that Juncus bufoniiis is some- 

 times infected bj' Tolyposporium junci, but he is unable to determine whether 

 there is any relation between this fungus and the Entorhiza. 



The rouge (leaf cast) of Pinus sylvestris, E. Maiee (Rev. Eau-v et Forets, 

 49 (1910), No. 15, pp. 458-460). — In this special form of the disease, the needles 

 first turn yellow, then red, dry up, and fall off. From the observations made, 

 the attack seems to be favored by wet weather, and is due to a fungus 

 (Lophodennium pinastri), which may be controlled by spraying with copper 

 solutions. 



ECONOMIC ZOOLOGY— ENTOMOLOGY. 



Game laws for 1910, H. Oldys, C. E. Brewster, and F. L. ExVRNSHaw (U. S. 

 Dcpl. Ayr., Fanners' Bui. 418, pp. //7).— ''The present bulletin, containing the 

 eleventh annual summary of the game laws of the United States and Canada, 

 has been prepared on the same general plan as those issued each year since 

 1902. It differs from other publications on the game laws in several important 

 points: (1) Inclusion of a brief but comprehensive review of the measures 

 enacted and also the more important ones which failed, (2) arrangement of 

 provisions by subjects instead of by States, and (3) adoption of a uniform 

 statement and order of the various details to facilitate ready comparison of 

 similar provisions in different States." 



Report on rat extermination, D. B. jMackie (Philippine Ayr. Rev. [English 

 Ed.], 3 (1910), No. 1, pp. ^2-//.5).— This is a report pertaining to an investigation 

 of rats in southern Luzon and their relation to the rice crop. 



Birds and mammals of northwestern Colorado, A. H. Felger (Univ. Colo. 

 Studies, 7 (1910), No. 2, pp. 132-146).— rhis annotated list of 133 species of 

 birds and 51 mammals includes those observed and collected on an expedition 

 and also those reported on good authority from the region. 



Birds of ISTew York, E. H. Eaton (.Y. Y. State Mus. Mem. 12, pt. 1, pp. 501, 

 pis. 43, figs. 106; rev. in Science, n. ser., 32 (1910), No. 816, pp. 24~, 2.'/8).— In 

 the introductory chapters of this work the author gives a summary of the 



