22 UNIVERSITY OF WASHINGTON 



303. TIMBER PHYSICS. Three credits. First semester. For 

 senior and graduate students. Prerequisite, Mathematics 55-56. 

 Deposit, $1.00. ZIMMERMAN. 



Various stresses which wood must resist; methods of making 

 tests; theory of flexure; relation between moisture and strength; 

 between specific gravity and strength; mechanical properties of 

 wood. 



304. WOOD PRESERVATION. Three credits. Second semester. 

 Required of seniors and graduates. Prerequisite, 101 and one 

 year of chemistry. Laboratory deposit, $2.00. GRONDAL. 



Nature of the decay of timber. Preservative processes. De- 

 sign and practical operation of wood preserving plants. Commer- 

 cial testing of preservatives. Economics of wood preservation. 

 Laboratory work with College of Forestry treating plant and re- 

 port work on local creosoting plants. 



305-306. LOGGING ENGINEERING. Four credits first semester, 

 six credits second semester. Primarily for graduates. Prerequi- 

 site, 51, 52, C. E. 108, M. E. 82. Laboratory deposit, second se- 

 mester, $2.00. CLARK. 



The construction and use of types of logging machinery and 

 equipment. The organization of logging companies, capital re- 

 quired. Construction of logging railroads, landings, camps, water 

 systems, etc. Topographic and railroad surveying applied to 

 logging operations. Organization and cost of operations. Lec- 

 tures, demonstrations at plants manufacturing logging machin- 

 ery, field work in nearby logging camps. During the second half 

 of the second semester the work is transferred to the field where 

 extensive work in logging engineering is carried on. 



307-308. SEMINAR. One credit per semester. For seniors and 

 graduates. WINKENWERDER, KIRKLAND, GRONDAL. 



Reviews, assigned readings, reports, and discussions on cur- 

 rent periodical literature and the more recent Forest Service 

 publications. 



309-310. ADVANCED FOREST PRODUCTS. Two credits per semes- 

 ter. For seniors and graduates. Prerequisite, 101 and 304. Labor- 

 atory deposit, $2.00 per semester. GRONDAL. 



Advanced studies in wood preservation and wood technology. 

 Special problems with reference to the needs of the individual 

 student. 



