10 TIMBER 



In his own specimen, a section of a 14-inch log (see 

 Fig. 2), the rings are as follows : 



4 rings for first inch. 



6 ,, second inch. 



7 third 



8 ,, ,, fourth 



9 fifth 



15 ,, sixth ,, 

 25 ,, ,, seventh ,, 

 30 eighth 



Baltic redwood (P. sijJrcstris) : 



First inch out from heart 13, 11, 4, 3, 6 rings. 



Second ,, 16, 18, 7, 5, 8 ,, 



Third 11, 14, 8, 5, 7 



Fourth 13, 15, 13, 5, 6 



In another case only 25 rings for 4 inches, which would he 

 called a soft log, but occasionally one finds 25 rings to an 

 inch in this timber. 



Douglas fir or Oregon : 



First 2 inches out from centre, 10, 9, 9 rings. 

 Four inches from centre, 29, 17, 15, 27, 25 rings. 

 Next 3 inches in one case showed 42 rings. 



The dark bands are the summer wood, the lighter 

 and inner portion the spring wood ; the latter is generally 

 much wider and the former much harder ; in some of the 

 rings the darker portion is wider than in others, showing 

 variations of growth owing to various causes, and in one 

 ring it may be wider in one part of the circumference 

 than it is on the opposite side, due possibly to the effect 

 of sunlight acting more on one side of the tree than on 

 the other, so that, counting the rings for some inches out 



