150 EXPERIMENT STATION RECORD. [Vol. 43 



descriptions of limited ai'eas in wliich trees of eacli species have been counted 

 and the chief measurements of all individuals talien. By means of tliese 

 measurements, the physical cliaracteristics of the different formations are 

 compared and studied in connection with the measurements of such environ- 

 mental' factors as temperature, light intensity, rainfall, soil moisture, humidity, 

 evaporation, and wind velocity. A briefer comparative study was also made 

 of the vegetation on Mount Banahao, Luzon. 



A list of the species considered, together with authorities and native names, 

 is given at the end of the paper. 



Dry zone afforestation and reclamation of waste land, A. E. P. Griessen 

 (Jonr. Bop. Hort. ^oc. ^5 (1919), No. 1, pp. 98-112, pis. J,, figs. 2).— An account 

 of dry land afforestation work being conducted in the vicinity of Delhi, India, 

 including lists showing the original flora or vegetation traced in 1912-13, species 

 introduced that are doing well, and species intro(luce<^l that grow indifferently. 



Progress report on forest administration in the Northwest Frontier 

 Province for the year 1918-19, R. Paknell {RjJt. Forest Admin. Northwest 

 Frontier Prov., 1918-19, pp. [Z7]+i5+[XZy/], pi. 1).—A progress report on 

 the administration and management of the State forests in the Northwest Fron- 

 tier Province of India for the year 1918-19. Important data relative to altera- 

 tions in forest areas, forest surveys, grazing, production, yields in major and 

 minor forest products, revenues, expenditures, etc., are appended in tabular 

 form. A summary is also given of the progress of forest administration for 

 the five-year period 1914-15 to 1918-19. 



Progress report of forest administration in Baluchistan for 1918-19, 

 MuHAM^iED ArzAL (Rpt. Forest Admin. Baluchistan, 1918-19, pp. 10^+19). — 

 A report similar to the above on the administration and management of the 

 State forests in Baluchistan. 



Forests, forestry, and forestal products {Off. Year Boole Aust., 12 (1901- 

 1918), pp. J/OS-.'flS). — A statistical report on the forest reserves and areas in the 

 various States of Australia in 1917, activities of the State forestry departments, 

 forestal industries, and production and quantities of timber and other forest 

 products imported and exported during the period 1913 to 1917-18. 



Production of lumber, lath, and shingles in 1918, F. H. Smith and A. H. 

 PiERsoN {U. S. Deiit. A(jr. Bui. 8^5 (1920), pp. 47, figs. 3).— A contribution from 

 the Forest Service containing detailed statistics of the 1918 production of 

 lumber, lath, and shingles in the continental United States, with comparative 

 figures from previous annual reports. The production is given by classes of 

 nulls, by States, and by kinds of wood. 



The total quantity of lumber reported cut in 1918 by 14,753 mills was 

 29,362,020,000 ft. b. m. The estimated total lumber production b.v 22,546 

 mills was 31,890,494,000 ft. b. m., a decrease of 11 per cent from the 1917 

 estimate. 



DISEASES OF PLANTS. 



Report of the hotanist, J. G. Leach (Colorado Hta. Rpt. 1919, pp. 13-17).— 

 Brief accounts are given of the various lines of work in progress. In the in- 

 vestigation with fungus diseases, particular attention has been paid to the 

 control of cereal smuts, and experiments conducted are said to have demon- 

 strated conclusively the efficiency of the standard formaldehyde treatments. 



Fungus diseases of garden crops [in Iowa], J. C. Xj[ilman (Iowa Agr., 20 

 (1919), No. 2, pp. 47-52, figs. 8). — A somewhat genei;alized account is given of 

 the results of observation and experimentation in connection with such garden 

 troubles as seed bed diseases, also potato blackleg, black scurf, early blight, 



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