FORESTRY. 1135 



places it at 700,000.000 acres, whereas it is estimated by others as low as 

 r>0U,000,O()() acres. Fr(jni a table showing the extent and ownership of forest 

 areas in tliis conntry it appears that only one-fifth of our forest area is in 

 National or State forests, the remainder being either in private hands or likely 

 to i)ass into i)rivate hands. It is estimated that the present cut of forest 

 products reiiuircs at least 20.000.CMK).(tOO eu. ft. of wood, and that under the 

 pi-esenl <-on(litit>ns of iiiisinana.LCcnicul the average annual increment is less 

 tiiaii 10 (U. ft. per acre for the entire area, whereas an annual increment of 30 

 ( u. ft. per acre is riMpiired to maintain the sujjply of timber now consumed 

 annually. 



The bulletin concludes with several quotations from an .irlicle by Fernow 

 on the financial management of forests in Saxony and I'laissia (K. S. K., 18, 

 p. 741 ). with reference to the adoption of a settled jiolicy (»f forest management, 

 based uiion the cutting of the increment oidy, without lessening the wood 

 capital. 



The lumber industry in the mountains of British Columbia, F. W. Jones 

 {('(luad. Forcstrij Jour., J {I'.ilil), \o. J, pp. .il-'/.i. pi. 1). — In this paper, read 

 before the forestry convention, ^'ancouver, September, lOOG, consideration is 

 given to the needs of the lumbering industry in relation to forest preservation. 

 The tiuthor discusses the existing forest regulations and offers suggestions for 

 the betterment of laws dealing with fires, the securing of more definite regula- 

 tions covering the difference between agricultural and timber lands, the inaugu- 

 ration of a cami)aign of education as to the importance of preserving standing 

 timber, and an amendment of the provincial regulations in order to provide 

 for such teniu'e and terms on timber licenses that the lumbermen will be able 

 to pay some attention to forestry principles in carrying on their operations. 



Notes re timbers of Western Australia suitable for railways, engineering 

 works, and constructional purposes generally, N. J. Mooue H'crlli: (Jort., 

 J906, pp. 36, flijs. n. tiKip 1). — These notes include a discussion of the timber 

 resources of Western Australia, forest areas and distribution, brief general 

 descriptions of the principal trees and timbers, the available supplies of timber 

 for commercial and other jiurposes, the economic uses of the principal timbers 

 of the State, their physical characteristics, and their resistance to the teredo, 

 white ant, and dry rot. 



A report is also given by the chief engineer of existing lines, W. W. Dartnall. 

 on the use of Western Australia hard woods for railway ties. The species of 

 timber chiefly used is Jarrah {Eiicalyptiis inarf/iiHita). The total iiumber iised 

 on railwa.\-s, including renewals, has been from 4.()0(),0()0 to .^,000,000. The 

 present size of the sleeper is 7 ft. by 9 in. by 4^ in. 



The text is accompanied by statistical data in regard to the climate of West- 

 ern Australia, timber exports from 1895 to 1904, the strength of W'estern Aus- 

 tralia timbers, information concerning timber shipping ]>orts, forest working 

 laws, and several illustrations of Western Australia trees and lumbering oper- 

 ations, together with a sketch map of the southwest portion of Western Aus- 

 tralia, showing the aii])roximate position of the i)rincipal timber forests. 



Quantity and character of creosote in well-preserved timbers, (}. Alleman 

 (U. /S'. IJcpt. Af/r., Forest Scrv. Circ. US, pp. Hi, fi(js. 2). — -Recent reports on the 

 service of creosoted railroad cross-ties and piles placed in salt water are said 

 to show clearly that while proper treatment gives remarkably good results, 

 nuich of this timber was improperly treated and has not lasted as it should. 



This circular contains an account of the results, together with a description 

 and discussion, of a series of analyses of the oils present in such forms of 

 creosoted timber as- have given long service. The woi'k is introduced by a brief 

 account of the source, composition, and production of coal-tar creosote, Numer- 



