Periodical Literature 267 



"For the treatment of estate timber by the simple open tank 

 method, saponified diluted creosote may be claimed as a cheap 

 effective substitute for the 'Rueping' process of professional 

 creosoters. Average creosote may be diluted to half its full 

 strength with good results." 



It is claimed that naphthalene has been used with good results 

 for at least twenty years, that it penetrates the timber readily, 

 can be used with green timber quite as effectively as with air- 

 dried, that it appears to evaporate very slowly, and, unlike creo- 

 sote, gives the timber a nice color and does not make it disagree- 

 able to handle. On the other hand, it was found that at present 

 prices the process is not less costly than cresoting. 



S. J. R. 



Preservative Treatment of Timber for Estate Purposes. Quarterly Journal of 

 Forestry, vol. VIII, pp. 169-186. 



Based upon experience in Hamilton, Ont., 

 Creosoted and other cities, Macallum furnishes an 



Wood Block article on the proper method of laying creo- 

 Pavements soted wood blocks. 



The first cost of wood block pavement is 

 undoubtedly higher than that of most other paving materials, 

 averaging in Hamilton from $2.85 to $3.00 per square yard, 

 exclusive of grading. But, when its cheapness of maintenance, 

 ease of cleaning, low tractive resistance and durability are taken 

 into consideration, this pavement will compare favorably and 

 prove ultimately cheaper than one lower in first cost. 



Creosoted Wood Block Pavements. The Canadian Engineer, April 15, 1915, 

 pp. 456-457. 



The amount of lumber used annually in 

 Preservative silo construction is estimated to be 100,- 

 Treatment 000,000 board feet. As this is all high 



of grade material, its preservative treatment 



Wooden Silos is important. Coaltar creosote is recom- 

 mended, and no appreciable contamination 

 of silage by contact with creosoted staves has been noted. It is 

 important to air-season the staves thoroughly after treatment. 



American Lumberman, March 13, 1915. 



