DISEASES OF PLANTS. 51 



Proceedings of the Society of American Foresters (Proc. Soe. Amer. 

 Foresters, 6 (1911), No. 1, pp. 112). — In addition to the routine reports of the 

 society for the year ended December 31, 1910, papers on the following subjects 

 are included : Working Plans for National Forests of the Pacific Northwest, 

 by B. P. Kirkland (pp. 16-37. with tabular data) ; Strip Thinnings, by T. S. 

 Woolsey, Jr. (pp. 38-41) ; Hardy Catalpa, a Study of Conditions in Kansas 

 Plantations, by A. E. Oman (pp. 42-52) ; Forests and Streamflow, an Experi- 

 mental Study, by C. G. Bates (pp. 53-t!3) ; The Philippines as Source of Gen- 

 eral Construction Timbers, by H. N. Whitford (pp. G4-(i7) ; Economic Possi- 

 bilities of Pinus sahmiana, by C. H. Shinn (pp. 68-77) ; History of the Investi- 

 gations of Vessels in Wood, by C. D. Mell (pp. 78-91) ; Experiments in the 

 Preservation of Forest Seeds, by E. Zederbauer (pp. 92-97) (E. S. R., 22, p. 

 739) ; Eiucalyptus Possibilities on the Coronado National Forest, by R. L. 

 Rogers (pp. 98-103) ; Notes on Management of Redwood Lands, by S. Berry 

 (pp. 104-107) ; and Efficacy of Goats in Clearing Brush Land in the Northwest, 

 by C. S. Judd (pp. 108-112). 



DISEASES OF PLANTS. 



Annual report on plant diseases, M. Hollrung (Jahresber. Pflanzenkrank., 

 12 (1909), pp. VIII+356).— This report, published in 1911, is a review of 

 the literature which appeared in 1909 relating to plant diseases, insect pests, 

 and methods for their control. 



Some 1,442 titles are noted. The general arrangement and treatment of the 

 topics are similar to those in previous reports. 



Diseases of cultivated plants of the Tropics, G. Delaceoix (Maladies des 

 Platites Vnlticecs (/««.s' /cs- Pcij/s ClKiitda. Pdris, 1911, pp. IX-\-595, figs. 70). — 

 This treatise on the plant diseases of tropical countries, based on the notes and 

 work of G. Delacroix and edited by A. Maublanc, consists of 2 parts, the first 

 devoted to a discussion of nonparasitic diseases in general and the other to 

 parasitic diseases. Under the second portion after a discussion of parasitism in 

 general, the general treatment of diseases of plants, and the parasitic nature of 

 diseases, the author gives in detail the characteristics, means of control, etc., 

 of diseases of coffee, tea, cacao, cotton, and sugar cane. 



Preliminary list of the parasitic fungi of Payette County, Iowa, G. W. 

 Wilson (Proc. Iowa Acad. Sci., 17 (1910), pp. 7/7-7.9).— This is a list of 245 

 fungi parasitic on wild and cultivated plants. 



Injurious insects and plant diseases — Legislation in Canada, C. G. Hewitt 

 (Gard. Chron., 3. ser., 50 (1911), Nos. 1281, pp. 21, 22; 1282, pp. J,!,, 45).— The 

 Department of Agriculture of Canada is empowered by the destructive insect 

 and pest act of 1910 to take such action as may be deemed necessary to prevent 

 the introduction or dissemination of injurious insects, pests, or plant diseases. 

 It is given the power to inspect plants liable to be infected with certain pests, 

 to destroy them if necessary, and to prohibit their importation into Canada. 



The text of this act and the regulations issued under it are given in full. 



The field laboratory, H. H. Whetzel (West. N. Y. Hart. Sac. Proc., 56 (1911), 

 pp. 17-23). — In an address before the Western New York Horticultural Society 

 the author emphasizes the need of field laboratories in solving plant disease 

 problems, and cites instances of the great advances made in the control of 

 certain diseases by the establishment of field laboratories. 



The differential staining of intercellular mycelium, E. J. Durand (Phyto- 

 pathology, 1 (1911), No. Jf, pp. 129, 130). — The author gives a method of stain- 

 ing with hematoxylin and eosin, by means of which the intercellular mycelium 



