FOEESTRY. 343 



map 1). — A progress report on state and private forest operations in Vermont. 

 It contains a statement of forest educational worlc, including lectures, exhibits, 

 publications, and assistance to private owners, private planting operations, and 

 work in the state forest nursery, a brief discussion of forest administration in 

 various countries, detailed reports on tbe lumber industries of Caledonia, Chit- 

 tenden, and Addison Counties, Vt., and a report of forest fires for 1909, together 

 with conclusions and recommendations regarding forest fires. 



On July 1, 1910, there were some 2,073,000 trees of different species in the 

 state nurseries. During the spring of 1910, 376,700 trees were sold to private 

 parties as compared with 195,500 trees in 1909. White pine was the principal 

 species planted, although some Norway spruce, Scotch pine, locust, and a few 

 red pine trees were purchased. 



The white pine blister rust (Peridermium strobi) was found on a number of 

 Imported seedlings. Measures are under way, however, to eradicate all infested 

 stock and it is believed that the disease will be entirely stamped out by the 

 spring of 1911. 



Beport of the superintendent of forestry, R. H. Campbell et al. {Rpt. 

 Supt. Forestry Cannda, 1910, pp. 77, pis. 12). — A general report of the work of 

 the forestry and irrigation branch of the Canadian Department of the Interior 

 for the year 1909-10, together with the reports of the officials in charge of the 

 different divisions of the work. 



[Report on] silviculture {Ann. Escola Polytech. Sao Paulo, 10 {1910), pp. 

 129-135, j)ls. 6). — A report on a number of species of timber trees which have 

 been under observation at the experiment station of the Sao Paulo Polytechnic 

 School for the past 5 years. 



Contribution to the knowledge of trees of Argentina, S. Ventuei and M. 

 Lillo {Contribucion al Conocimicnto de los Arholes de la Argentina. Buenos 

 Aires, 1910, pp. VI-\-121). — This consists of determinations by M. Lillo of some 

 371 timber species of Argentina, based upon collections and observations made 

 by S. Venturi in behalf of the Argentina Centennial Expositou of 1910. The 

 genera and the species are arranged in alphabetical order, and the data given 

 for each species include the provincial name, previous references, habitat, aver- 

 age circumference of trees observed, and economic value of the wood. 



A number of new species were named by Lillo, including Blepharocalyx gigan- 

 teus, B. monianus. Ilex argentina, Prunus tucumanensis, Gyrotwnia {?) argen- 

 tina, Lonchocarpus sylvaticus, and Bauhinia venturii. 



Report on the introduction of exotic species in Belgium, A. Visart and 

 C BoMMEB {Rapport stir V Introduction des Essences E-rotiques en Belgique. 

 Brussels: Govt., 1909, pp. 881, pis. G). — This report embraces the salient features 

 of an investigation, commenced in 1900 under the direction of the Belgian Su- 

 perior Council of Forests at the suggestion of the Minister of Agriculture, to 

 determine the results which have been secured during the past in acclimating 

 exotic species of trees in Belgium, and to secure information relative to addi- 

 tional species of possible value in developing forestry in various parts of that 

 country. In arriving at the value of the various species, the experience gained 

 in neighboring countries has also been drawn on. 



Consideration is first given to the climate of Belgium, after which the various 

 deciduous and coniferous trees which have either been grown in Belgium or are 

 recommended for trial are considered in detail, relative to their characteristics, 

 economic value, and origin. The appraisement of the various species is sum- 

 marized and a number of conclusions are drawn from the investigations as a 

 whole. A bibliography is appended. 



Thus far the exotic species having great importance in Belgium and which 

 are all of either Euroi:>ean or North American origin, are Populus canadensis, 



