500 THE BELL SYSTEM TECHNICAL JOURNAL, MARCH 1953 



21. Breazzano, A., Metodi Normali di Prova sulla Putrescibilitd dei Legnani. 



(English translation: Standard Methods of Testing the Putrescibility of 

 Wood.) Extract from Report of the Ninth Meeting of the Italian Associ- 

 ation for the Study of Building Materials; Turin; April, 1922. Forest Prod- 

 ucts Laboratory, Madison, Wis. 



22. Breazzano, A., Osservazioni sul Metodo dei Blocchetti di Legno in Usa nell 



Analisi Tossimetrica delle Sostanze Conservatrici del Legno. Revista 

 Technica Delle Ferrovie Italiane. 47, No. 6, June 15, 1935. (Observations 

 on the Wood Block Method in the Toximetric Analysis of Wood Preserva- 

 tives. Excerpt from Technical Review of Italian Railways. English trans- 

 lation; Forest Products Laboratory.) 



23. Breazzano, A., Methods for Determining the Fungicidal Power of Wood 



Preservatives. International Assn. for Testing Materials, Proc, London 

 Congress, Group C — Organic Materials, Sub. group 3, pp. 484-486, April, 

 1937. 



24. British Standard Method of Test for the Toxicity of Wood Preservatives to 



Fungi. British Standards Institution. British Standard No. 838, 17 pp., 

 April, 1939. 



25. Broekhuizen, S., Onderzoekingen over de Conserverende Waarde van een 



Aantal Houtconserveermiddelen. Rapp. Comm. Gebruikw. inh. hout. Deel 

 II, Bijlage II, pp. 89-122, The Hague, 1937. 

 26.. Cartwright, K. St. G., and W. P. K. Findlay, Decay of Timber and its Preven- 

 tion. VI plus 294 p. London: His Majesty's Stationery Office, 1946. Re- 

 printed 1948. 



27. Colley, R. H., The Effect of Incipient Decay on the Mechanical Properties 



of Airplane Timber. (Abstract) Phytopathology, 11, p. 45, 1921. 



28. Colley, R. H., T. R. C. Wilson, and R. F. Luxford, The Effect of Polyporus 



Schweinitzii and Trametes Pini on the Shock-resistance, Compression Paral- 

 lel to Grain Strength, and Specific Gravity of Sitka Spruce. Forest Products 

 Laboratory, Project L-243-J1, Typewritten Report, 29 p., 32 figs., 4 plates. 

 July 3, 1925. 



29. Colley, R. H., and C. H. Amadon, Relation between Penetration and Decay 



in Creosoted Southern Pine Poles. Bell Sys. Tech. Jl., 15, pp. 363-379, 

 July, 1936. 



30. Colley, R. H., Some Observations on the Selection and Use of Modern Wood 



Preservatives. Reports, Twenty-fourth Session, Communications Sec- 

 tion, Association of American Railroads, October, 1947, pp. 17-25. 



31. Colley, R. H., Wood preservation and Timber Economy. Forest Products 



Institute of Canada. Papers presented at the First Annual Convention, 

 Ottawa, Oct. 30-31, 1950. 



32. Curtin, L. P., B. L. Kline, and W. Thordarson, V— Weathering Tests on 



Treated Wood. Ind. and Eng. Chem. 10, No. 12, pp. 1340-1343, Dec, 1927. 



33. DIN (Deutsche Normen) DVM 2176, Blatt 1. Prufung von Holzschutz- 



mitteln, Mykologische Kurzpriifung (Klotzchen Verfahren). Berlin, Aug. 

 1939. (New Edition DIN 52176). 



34. DIN DVM 52176, Blatt 2. Prufung von Holzschutzmitteln. Bestimmung der 



Auslaugbarkeit. Berlin, May 1941. (Reprinted Oct., 1948). 



35. Duncan, C. G., and C. A. Richards, Methods of Evaluating Wood-Preserva- 



tives: Weathered Impregnated Wood Blocks. Am. Wood Preservers' Assoc, 

 Proc, 44, pp. 259-264, 1948. 



36. Duncan, C. G., A comparison of Two English Creosotes Produced from Coke- 



oven Coal Tar and Vertical-retort Coal Tar. Mss. Office Report, Division 

 of Forest Pathology, Bur. PI. Ind., Forest Prod. Lab., Madison, Wis., Jan. 

 21, 1949. 



37. Duncan, C. G., and C. A. Richards, Evaluating Wood Preservatives by Soil- 



block Tests: 1. Effect of Carrier on Pentachlorophenol Solutions; 2. Com- 

 parison of a Coal Tar Creosote, a Petroleum Containing Pentachlorophenol 

 or Copper Naphthenate and Mixtures of Them. Amer. Wood Preservers 

 Assoc, Proc, 46, pp. 131-145, 1950. 



38. Duncan, C. G., and C. A. Richards, Evaluating Wood Preservatives by Soil- 



Block Tests: 3. The Effect of Mixing a Coal Tar Creosote and a Penta- 



