536 JOURNAL OF FORESTRY 



Assistant District Forester at Portland, and the rest by Mr. Tillotson, 

 Acting Chief of Forest Investigations of the Forest Service. 



Diameter, Height, 



inches feet 



Red cedar 23.7 76 = 0.21H 



Bigtree 141 300 = 0.29// 



Bigtree 123 300 = 0.32// 



Bigtree 116 295 = 0.33// 



Bigtree 103 294 = 0.35// 



Cypress 29.5 125 = 0.37// 



White oak 30 126 = 0.39// 



Shortleaf pine 22.5 127=0.41// 



Longleaf pine 28 152 = 0. 41 // 



White pine 39.8 180 = 0.41// 



Oregon yellow pine 47 . 5 174 = 0. 38 /f 



Oregon yellow pine 36 170 = 0.45 // 



Oregon Coast Douglas fir 67.2 318 = 0.46// 



Oregon Coast Douglas fir 71.6 330 = 0.52// 



A comparison of these results with {E) and the species tables fol- 

 lowing, will show the cedar lower than the average. In the cedar table, 

 trees 160 years old on a diameter of 23 . 6 inches are 86 feet high. The 

 cypress is the Louisiana type, and lower than the Maryland sort. The 

 white oak corresponds exactly to Tennessee trees 120 years old, 69 feet 

 high on a diameter of 12.3 inches. The bigtrees are relatively taller 

 (the last three) than young bigtrees. Bigtrees near 300 feet high vary 

 from a fourth to an eighth of H. The first of the Douglas firs is, relative 

 to H, about as the 200-year-old trees, 209 feet high on a diameter of 

 37.4 inches. The second Douglas fir stands at the top of the list of 

 measured tall trees of America, both as regards actual height and 

 height relative to H. 



(G) Relatively the tallest trees (United States). 



The tallest trees I have found, as compared with the greatest height 

 H, they could reach in still air, without bending under their own weight, 

 if tilted slightly out of the vertical, are: 



Diameter, Height, 



inches feet 



Douglas fir 71.6 330 = 0.52/? 



Maryland cypress 6 61 = 0. 52 // 



Douglas fir 67.2 318 = 0.46/?" 



Wisconsin white pine 9.3 74 = . 45 // 



Oregon yellow pine 36 170 = 0. 45 // 



British Columbia pine, a world beater. 20 221 = 0. 80 /? 



(See note on tallest pines, under white pines.) 



(H) Forest Service Bulletins make statements concerning the 

 greatest height and greatest diameter reached by trees of different 



